Electrical equipment design support system, electrical equipment design support method, and program

Abstract

The transformer capacity for the actual installed load equipment should be calculated appropriately. [Solution] The electrical equipment design support system comprises an acquisition unit that acquires information used in the design of electrical equipment, and a calculation unit that calculates calculation items from the acquired information. The acquired information includes sample data which is information showing the power consumption by time of day when the load equipment is in operation. The calculation unit comprises a power consumption calculation unit that calculates the power consumption by time of day based on the sample data and a coefficient that shows the correspondence between the power consumption by time of day when the load equipment corresponding to the sample data is in operation and the power consumption by time of day when the actually installed load equipment is in operation, a power peak value calculation unit that calculates the peak value of the calculated power consumption by time of day when the actually installed load equipment is in operation, and a transformer capacity calculation unit that calculates the transformer capacity for the actually installed load equipment based on the calculated peak value of the power consumption by time of day when the actually installed load equipment is in operation.

Description

Technical Field

[0001] The present invention relates to an electrical equipment design support system, an electrical equipment design support method, and a program.

Background Art

[0002] Patent Document 1 describes an electrical equipment design support system that supports the design of electrical equipment including the configuration of an electrical path and the configuration of a breaker that opens and closes the electrical path. In the technology described in Patent Document 1, a plurality of terminal devices can receive input of information related to electrical equipment, and a design support server comprehensively manages information related to the design of electrical equipment, and creates electrical equipment design information used for building design based on the electrical equipment configuration information received from the plurality of terminal devices. Specifically, the design support server creates electrical equipment design information including the configuration of an electrical path connected to a load and the configuration of a breaker that opens and closes the electrical path based on the electrical equipment configuration information received from the plurality of terminal devices.

[0003] By the way, although Patent Document 1 describes that "capacity" is displayed in the item of "transformer", it does not describe how to calculate the transformer capacity for load equipment connected to the electrical equipment to be the target of design support. Therefore, depending on the technology described in Patent Document 1, there is a possibility that the transformer capacity for load equipment connected to the electrical equipment to be the target of design support cannot be appropriately calculated.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of the above, the present invention aims to provide an electrical equipment design support system, an electrical equipment design support method, and a program that can appropriately calculate the transformer capacity for an actual installed load equipment, which is a load equipment connected to the electrical equipment that is the target of design support. [Means for solving the problem]

[0006] One aspect of the present invention is an electrical equipment design support system for assisting the design of electrical equipment, comprising: an acquisition unit for acquiring information used in the design of the electrical equipment; and a calculation unit for calculating calculation items from the information acquired by the acquisition unit, wherein the information acquired by the acquisition unit includes at least sample data which is information indicating the amount of electricity used by time of day when a predetermined load equipment is in operation; and the calculation unit calculates the sample data, the amount of electricity used by time of day when the predetermined load equipment is in operation corresponding to the sample data, and the actual installed load equipment which is the load equipment connected to the electrical equipment that is the target of design support by the electrical equipment design support system. The electrical equipment design support system comprises: a power consumption calculation unit that calculates at least the time-of-day power consumption of the actual installed load equipment when it is in operation as a calculation item, based at least on a coefficient that shows the correspondence with the time-of-day power consumption when the equipment is in operation; a power peak value calculation unit that calculates the peak value of the time-of-day power consumption of the actual installed load equipment when it is in operation, calculated by the power consumption calculation unit; and a transformer capacity calculation unit that calculates the transformer capacity for the actual installed load equipment based at least on the peak value of the time-of-day power consumption of the actual installed load equipment when it is in operation, calculated by the power peak value calculation unit.

[0007] One aspect of the present invention is an electrical equipment design support method for an electrical equipment design support system that assists in the design of electrical equipment, comprising: an acquisition step of acquiring information used in the design of the electrical equipment; and a calculation step of calculating calculation items from the information acquired in the acquisition step, wherein the information acquired in the acquisition step includes at least sample data which is information indicating the amount of electricity used by time of day when a predetermined load equipment is in operation, and the calculation step includes the sample data, the amount of electricity used by time of day when the predetermined load equipment is in operation corresponding to the sample data, and the load equipment connected to the electrical equipment that is the target of design support by the electrical equipment design support system. The electrical equipment design support method includes: a power consumption calculation step of calculating at least the time-of-day power consumption when the actual installed load equipment is in operation as the calculation item, based at least on a coefficient that shows the correspondence with the time-of-day power consumption when the actual installed load equipment is in operation; a power peak value calculation step of calculating the peak value of the time-of-day power consumption when the actual installed load equipment is in operation, calculated in the power consumption calculation step; and a transformer capacity calculation step of calculating the transformer capacity for the actual installed load equipment based at least on the peak value of the time-of-day power consumption when the actual installed load equipment is in operation, calculated in the power peak value calculation step.

[0008] One aspect of the present invention is a program for causing a computer to perform an acquisition step of acquiring information used in the design of electrical equipment, and a calculation step of calculating calculation items from the information acquired in the acquisition step, wherein the information acquired in the acquisition step includes at least sample data which is information indicating the amount of electricity used by time of day when a predetermined load equipment is in operation, and the calculation step includes the sample data, the amount of electricity used by time of day when the predetermined load equipment corresponding to the sample data is in operation, and the amount of electricity used by time of day when the predetermined load equipment is in operation, and the amount of electricity used by actual installed load equipment which is the load equipment connected to the electrical equipment that is the target of design support by the electrical equipment design support system. The program includes: a power consumption calculation step of calculating at least the time-of-day power consumption when the actual installed load equipment is in operation as the calculation item, based at least on a coefficient that shows the correspondence with the time-of-day power consumption when the equipment is in operation; a power peak value calculation step of calculating the peak value of the time-of-day power consumption when the actual installed load equipment is in operation, calculated in the power consumption calculation step; and a transformer capacity calculation step of calculating the transformer capacity for the actual installed load equipment based at least on the peak value of the time-of-day power consumption when the actual installed load equipment is in operation, calculated in the power peak value calculation step. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide an electrical equipment design support system, an electrical equipment design support method, and a program that can appropriately calculate the transformer capacity for an actual installed load equipment, which is a load equipment connected to the electrical equipment that is the target of design support. [Brief explanation of the drawing]

[0010] [Figure 1] This figure shows an example of the electrical equipment design support system 1 according to the first embodiment. [Figure 2] This figure shows an example of sample data A1 acquired by the acquisition unit 11. [Figure 3] This figure shows an example of processing performed by the power consumption calculation unit 12A. [Figure 4]This figure shows another example of processing performed by the power consumption calculation unit 12A. [Figure 5] This figure shows yet another example of processing by the power consumption calculation unit 12A. [Figure 6] This figure shows yet another example of processing by the power consumption calculation unit 12A. [Figure 7] This is a diagram showing the selection table for transformer weights. [Figure 8] This is a diagram showing the selection table for cubicle boxes. [Figure 9] This is a diagram showing the unit price list for electric wires. [Figure 10] This figure shows an example of the time-of-day power consumption of the actual installed load equipment when peak cut control is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. [Figure 11] This figure shows an example of the time-of-day power consumption of the actual installed load equipment when peak shift control without the use of a battery is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. [Figure 12] This figure shows an example of the time-of-day power consumption of actual installed load equipment when peak shift control using a storage battery is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. [Figure 13] This figure shows an example of the time-of-day power consumption of the actual installed load equipment when energy-saving control is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. [Figure 14] This is a flowchart illustrating an example of the process performed in the electrical equipment design support system 1 of the first embodiment. [Figure 15] This figure shows an example of the initial cost of a cubicle calculated by the calculation unit 12. [Figure 16] This figure shows an example of the electrical equipment design support system 1 according to the second embodiment. [Figure 17]It is a diagram showing an example of the processing by the power consumption calculation unit 12A of the electrical equipment design support system 1 according to the second embodiment.

Embodiments for Carrying out the Invention

[0011] <First Embodiment> Hereinafter, a first embodiment of the electrical equipment design support system, the electrical equipment design support method, and the program of the present invention will be described.

[0012] FIG. 1 is a diagram showing an example of the electrical equipment design support system 1 according to the first embodiment. In the example shown in FIG. 1, the electrical equipment design support system 1 according to the first embodiment supports the design of electrical equipment by a user of the electrical equipment design support system 1. The electrical equipment design support system 1 includes an acquisition unit 11 and a calculation unit 12. The acquisition unit 11 acquires information (hereinafter referred to as "input items" and "storage items") used for the design of electrical equipment (specifically, electrical equipment whose design is supported by the electrical equipment design support system 1. Hereinafter, referred to as "design support target electrical equipment"). The information acquired by the acquisition unit 11 includes, for example, sample data A1 indicating the power consumption by time zone when a predetermined load equipment (specifically, a load equipment different from the load equipment connected to the design support target electrical equipment. Hereinafter, referred to as "sample load equipment") is operating.

[0013] FIG. 2 is a diagram showing an example of the sample data A1 acquired by the acquisition unit 11. In the example shown in Figure 2, the sample data A1 acquired by the acquisition unit 11 includes office lighting sample data A11, office outlet sample data (not shown), office air conditioning sample data A12, office elevator sample data (not shown), etc. Office lighting sample data A11 is information showing the time-of-day power consumption of office lighting fixtures as sample load equipment. In other words, office lighting sample data A11 is information showing a sample of time-of-day power consumption when the building use (the use of the building to which the sample load equipment is applied) is an office, the load equipment is lighting fixtures (lighting load), and the power consumption and number of load equipment are at standard values.

[0014] The office outlet sample data is information showing the time-of-day power consumption of office outlets, which are used as sample load equipment. In other words, the outlet sample data shows sample time-of-day power consumption for a building whose use is office, whose load equipment is outlets (lighting load), and whose power consumption and number of load equipment are within the standard values. Office air conditioning sample data A12 is information showing the time-of-day electricity consumption of office air conditioning as a sample load device. In other words, office air conditioning sample data A12 is information showing sample time-of-day electricity consumption when the building use is an office, the load device is air conditioning (power load), and the power consumption and number of load devices are within the standard values. The office elevator sample data is information showing the time-of-day electricity consumption of office elevators as sample load equipment. In other words, the office elevator sample data is information showing sample time-of-day electricity consumption when the building use is office, the load equipment is elevators (power load), and the power consumption and number of load equipment are within the standard values.

[0015] In the example shown in Figure 1, the calculation unit 12 calculates calculation items from the information (input items and stored items) acquired by the acquisition unit 11. The calculation unit 12 includes a power consumption calculation unit 12A, a lighting load power peak value calculation unit 12B, a power load power peak value calculation unit 12C, a lighting load equipment transformer capacity calculation unit 12D, a power load equipment transformer capacity calculation unit 12E, a cubicle power receiving capacity calculation unit 12F, a lighting panel main capacity calculation unit 12G, a power panel main capacity calculation unit 12H, a transformer weight calculation unit 12I, a cubicle size calculation unit 12J, a cubicle weight calculation unit 12K, a first wire cost calculation unit 12L, a second wire cost calculation unit 12M, a running cost calculation unit 12N, and a running cost reduction effect calculation unit 12P. The power consumption calculation unit 12A calculates the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, based on sample data A1, a coefficient A2 that shows the correspondence between the power consumption by time of day when the sample load equipment (a predetermined load equipment corresponding to sample data A1) is in operation and the power consumption by time of day when the load equipment connected to the electrical equipment to be designed (hereinafter referred to as "actual installed load equipment") is in operation, and other calculation items. Coefficient A2 is a coefficient that should be multiplied by sample data A1 in order to calculate the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation.

[0016] If sample data A1 is sample data A12 for office air conditioning with the following specifications: "Building use: Office", "Load equipment: Air conditioning", "Power consumption of load equipment: 2000W", and "Number of load equipment units: 1", and the actual installed load equipment is office air conditioning with the following specifications: "Building use (use of the building to which the actual installed load equipment applies): Office", "Load equipment: Air conditioning", "Power consumption of load equipment: 2500W", and "Number of load equipment units: 4", then the power consumption calculation unit 12A sets the value of coefficient A2 to 1.25 (=2500W / 2000W) × 4 (=4 units / 1 unit) = 5. Sample data A1 and information on the sample load equipment, such as "Building use: Office", "Load equipment: Air conditioning", "Power consumption of load equipment: 2000W", and "Number of load equipment: 1 unit", are stored as memory items inside or outside the electrical equipment design support system 1 and are acquired by the acquisition unit 11. The information about the actual installed load equipment, such as "Building Use: Office," "Load Equipment: Air Conditioning," "Power Consumption of Load Equipment: 2500W," and "Number of Load Equipment Units: 4," is an input item entered into the Electrical Equipment Design Support System 1 by the user of the Electrical Equipment Design Support System 1 and is acquired by the Acquisition Unit 11. In other words, the information acquired by the Acquisition Unit 11 includes the power consumption and number of actual installed load equipment connected to the electrical equipment targeted for design support.

[0017] Figure 3 shows an example of processing performed by the power consumption calculation unit 12A. In the example shown in Figure 3, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the actual installed load equipment (air conditioning (power load)) connected to the electrical equipment targeted for design support is in operation, by multiplying the office air conditioning sample data A12 by a coefficient A2 (specifically, the value "3 (=1.25 × 4 × 0.6)"). (Specifically, it creates a graph A32 of the power consumption by load of the actual installed load equipment (air conditioning)).

[0018] Figure 4 shows another example of processing performed by the power consumption calculation unit 12A. In the example shown in Figure 4, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the actual installed load equipment (lighting fixtures (lighting loads)) connected to the design-supported electrical equipment is in operation, by multiplying the office lighting sample data A11 (see Figure 2) by coefficient A2, similar to the example shown in Figure 3 (in detail, a graph A31 of the power consumption by load of the actual installed load equipment (lighting fixtures) is created). Furthermore, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the actual installed load equipment (outlets (lighting loads)) connected to the electrical equipment to be designed is in operation, by multiplying the office outlet sample data (not shown) by coefficient A2, similar to the example shown in Figure 3 (in detail, it creates a load-specific power consumption graph A31A of the actual installed load equipment (outlets)). Furthermore, the power consumption calculation unit 12A creates a graph of total power consumption for the actual installed load equipment (lighting fixtures (lighting load)) by stacking the power consumption graph A31 for each load of the actual installed load equipment (outlets (lighting load)), the power consumption graph A31A for each load of the actual installed load equipment, etc., to create a graph of total power consumption for the actual installed load equipment (lighting load) A31X (=A31+A31A+...).

[0019] Figure 5 shows yet another example of processing by the power consumption calculation unit 12A. In the example shown in Figure 5, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the actual installed load equipment (elevator (power load)) connected to the electrical equipment to be designed is in operation, by multiplying the office elevator sample data (not shown) by coefficient A2, similar to the example shown in Figure 3 (in detail, a graph A32A of the power consumption by load of the actual installed load equipment (elevator) is created). Furthermore, the power consumption calculation unit 12A creates a graph of total power consumption for the actual installed load equipment A32X (=A32+A32A+…) by stacking the power consumption graphs A32 for each load of the actual installed load equipment (air conditioning (power load)), A32A for each load of the actual installed load equipment (elevator (power load)), etc.

[0020] Figure 6 shows yet another example of processing performed by the power consumption calculation unit 12A. In the example shown in Figure 6, the power consumption calculation unit 12A creates a power consumption graph A4 (=A31X+A32X) for the total load of the actual installed load equipment (i.e., the sum of all lighting loads and all power loads) by stacking the total lighting load power consumption graph A31X and the total power load power consumption graph A32X. Furthermore, the power consumption calculation unit 12A calculates the daily power consumption A5 (calculation item) of all actual installed load equipment (i.e., all load) connected to the electrical equipment targeted for design support by summing up the power consumption for all time periods (1:00 to 24:00) included in the total load power consumption graph A4 of the actual installed load equipment. Information indicating the power consumption and number of actual installed load equipment is used to set the coefficient A2.

[0021] In the example shown in Figure 1, the lighting load power peak value calculation unit 12B calculates the peak value of the total lighting load power consumption graph A31X of the actual installed load equipment (lighting fixtures (lighting load)) (in the example shown in Figure 6, the values ​​on the vertical axis at 10:00, 11:00, and 15:00) as the "lighting load power peak value B1" (calculation item). The power load power peak value calculation unit 12C calculates the peak value of the total power load power consumption graph A32X of the actual installed load equipment (air conditioning (power load)) as the "power load power peak value C1" (calculation item). (In the example shown in Figure 6, this is the value on the vertical axis at 13:00.) The transformer capacity calculation unit 12D for lighting load equipment calculates the transformer capacity D3 (calculation item) for lighting load equipment based on the peak power value B1 calculated by the peak power value calculation unit 12B, the margin factor D1 for calculating the transformer capacity D3 for lighting load equipment, the power factor D2 for calculating the transformer capacity D3 for lighting load equipment, and, for example, the following equation (2). The margin factor D1 for calculating the transformer capacity D3 for lighting load equipment is a stored item or an input item, for example, "1.3" when the building use is an office, "1.2" when the building use is a store, and "1.4" when the building use is a factory. The power factor D2 for calculating the transformer capacity D3 for lighting load equipment is a stored item, for example, "0.95". D3 = B1 × D1 ÷ D2 (2)

[0022] In other examples, the margin factor D1 for calculating the transformer capacity D3 for the lighting load equipment may vary depending on the peak value of the total power consumption graph A31X of the actual installed load equipment (lighting fixtures (lighting load)). Specifically, when the peak value of the total power consumption graph A31X of the actual installed load equipment (lighting fixtures (lighting load)) is 0 to 150 [kW], the margin factor D1 for calculating the transformer capacity D3 for the lighting load equipment is, for example, "1.2". When the peak value of the total power consumption graph A31X of the actual installed load equipment (lighting fixtures (lighting load)) is 150 to 300 [kW], the margin factor D1 for calculating the transformer capacity D3 for the lighting load equipment is, for example, "1.3". When the peak value of the total power consumption graph A31X for the actual installed load equipment (lighting fixtures (lighting load)) is 300-500 [kW], the margin factor D1 for calculating the transformer capacity D3 for the lighting load equipment is, for example, "1.4".

[0023] In the example shown in Figure 1, the power load equipment transformer capacity calculation unit 12E calculates the power load equipment transformer capacity E3 (calculation item) based on the power load power peak value C1 calculated by the power load power peak value calculation unit 12C, the margin factor E1 for calculating the power load equipment transformer capacity E3, the power factor E2 for calculating the power load equipment transformer capacity E3, and, for example, the following equation (3). The margin factor E1 for calculating the power load equipment transformer capacity E3 is a stored item or an input item, for example, "1.2" when the building use is an office, "1.2" when the building use is a store, and "1.5" when the building use is a factory. The power factor E2 for calculating the power load equipment transformer capacity E3 is a stored item, for example, "0.85". E3 = C1 × E1 ÷ E2 (3)

[0024] If the building is used as a factory and the peak power load value C1 is 150 [kW], then the transformer capacity E3 for the power load equipment will be 265 [kVA] (= 150 × 1.5 ÷ 0.85). In other examples, the margin factor E1 for calculating the transformer capacity E3 for power load equipment may vary depending on the peak value of the total power load electricity consumption graph A32X of the actual installed load equipment (air conditioning (power load)). Specifically, when the peak value of the total power load electricity consumption graph A32X of the actual installed load equipment (air conditioning (power load)) is 0 to 150 [kW], the margin factor E1 for calculating the transformer capacity E3 for power load equipment is, for example, "1.2". When the peak value of the total power load electricity consumption graph A32X of the actual installed load equipment (air conditioning (power load)) is 150 to 300 [kW], the margin factor E1 for calculating the transformer capacity E3 for power load equipment is, for example, "1.3". When the peak value of the total power load electricity consumption graph A32X of the actual installed load equipment (air conditioning (power load)) is 300 to 500 [kW], the margin factor E1 for calculating the transformer capacity E3 for power load equipment is, for example, "1.4".

[0025] In the example shown in Figure 1, the cubicle power receiving capacity calculation unit 12F calculates the sum of the transformer capacity D3 for lighting load equipment calculated by the transformer capacity calculation unit 12D and the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E (D3 + E3) as the cubicle power receiving capacity F1 (calculation item). The main circuit breaker capacity calculation unit 12G calculates the main circuit breaker capacity G4[A] (calculation item) based on the peak power value B1 of the lighting load power calculated by the peak power value calculation unit 12B, the margin G1 for calculating the main circuit breaker capacity G4, the power factor G2 for calculating the main circuit breaker capacity G4, the voltage G3 supplied to the actual installed load equipment (lighting fixtures (lighting loads)) connected to the circuit breaker, and, for example, the following equation (4). The margin G1 for calculating the main circuit breaker capacity G4 is a stored item or an input item, for example, "1.3" when the building use is an office, "1.2" when the building use is a store, and "1.4" when the building use is a factory. The power factor G2 for calculating the main circuit breaker capacity G4 is a stored item, for example, "0.95". G4 = B1 × G1 ÷ G2 ÷ G3 (4)

[0026] The power distribution panel main capacity calculation unit 12H calculates the power distribution panel main capacity H4[A] (calculation item) based on the power load power peak value C1 calculated by the power load power peak value calculation unit 12C, the margin H1 for calculating the power distribution panel main capacity H4, the power factor H2 for calculating the power distribution panel main capacity H4, the voltage H3 supplied to the actual installed load equipment (air conditioning (power load)) connected to the power distribution panel, and, for example, the following equation (5). The margin H1 for calculating the power distribution panel main capacity H4 is a stored item or an input item, for example, "1.2" when the building use is an office, "1.2" when the building use is a store, and "1.5" when the building use is a factory. The power factor H2 for calculating the power distribution panel main capacity H4 is a stored item, for example, "0.85". H4 = C1 × H1 ÷ H2 ÷ H3 (5)

[0027] The transformer weight calculation unit 12I calculates the transformer weight I1 (calculation item) for lighting load equipment based on the transformer capacity D3 for lighting load equipment calculated by the transformer capacity calculation unit 12D and the transformer weight selection table (storage items) (see Figure 7). The transformer weight calculation unit 12I also calculates the transformer weight I2 (calculation item) for power load equipment based on the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E and the transformer weight selection table.

[0028] Figure 7 shows a transformer weight selection table. The transformer weight selection table shows the relationship between the transformer capacity D3 for lighting load equipment and the transformer weight I1 for lighting load equipment, and the relationship between the transformer capacity E3 for power load equipment and the transformer weight I2 for power load equipment. In the example shown in Figure 7, when the transformer capacity D3 for the lighting load equipment calculated by the transformer capacity calculation unit 12D is 10 [kVA], the transformer weight calculation unit 12I calculates 95 [kg] as the transformer weight I1 (calculation item) for the lighting load equipment based on the transformer weight selection table. Furthermore, the transformer weight calculation unit 12I calculates the transformer weight I1 for lighting load equipment as 140 kg when the transformer capacity D3 for lighting load equipment is 20 kVA, 180 kg when the transformer capacity D3 for lighting load equipment is 30 kVA, 265 kg when the transformer capacity D3 for lighting load equipment is 50 kVA, 345 kg when the transformer capacity D3 for lighting load equipment is 75 kVA, and 440 kg when the transformer capacity D3 for lighting load equipment is 100 kVA. When the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 20 [kVA], the transformer weight calculation unit 12I calculates 165 [kg] as the transformer weight I2 (calculation item) for power load equipment based on the transformer weight selection table. Furthermore, the transformer weight calculation unit 12I calculates 210 [kg] as the transformer weight I2 for power load equipment when the transformer capacity E3 for power load equipment is 30 [kVA], 295 [kg] as the transformer weight I2 for power load equipment when the transformer capacity E3 for power load equipment is 50 [kVA], 405 [kg] as the transformer weight I2 for power load equipment when the transformer capacity E3 for power load equipment is 75 [kVA], and 505 [kg] as the transformer weight I2 for power load equipment when the transformer capacity E3 for power load equipment is 100 [kVA].

[0029] In the example shown in Figure 1, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment based on the transformer capacity D3 for lighting load equipment calculated by the transformer capacity calculation unit 12D and the cubicle box selection table (storage items) (see Figure 8). The cubicle size calculation unit 12J also calculates the cubicle size J2 for power load equipment based on the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E and the cubicle box selection table. The cubicle weight calculation unit 12K calculates the weight K1 of the cubicle enclosure based on the transformer capacity D3 for the lighting load equipment calculated by the transformer capacity calculation unit 12D and the cubicle enclosure selection table. The cubicle weight calculation unit 12K also calculates the weight K2 of the power load equipment enclosure based on the transformer capacity E3 for the power load equipment calculated by the transformer capacity calculation unit 12E and the cubicle enclosure selection table.

[0030] Figure 8 is a diagram showing the cubicle box selection table. The cubicle box selection table shows the relationship between the transformer capacity D3 for lighting load equipment, the cubicle size J1 for lighting load equipment, and the box weight K1 for lighting load equipment, as well as the relationship between the transformer capacity E3 for power load equipment, the cubicle size J2 for power load equipment, and the box weight K2 for power load equipment. In the example shown in Figure 8, if the transformer capacity D3 for the lighting load equipment calculated by the transformer capacity calculation unit 12D is 50 [kVA] or less, the cubicle size calculation unit 12J calculates one of the following as the cubicle size J1 (calculation item): width 600 [mm] x depth 900 [mm], width 600 [mm] x depth 1400 [mm], or width 600 [mm] x depth 2000 [mm], based on the cubicle box selection table. If the cubicle size calculation unit 12J calculates width 600 [mm] x depth 900 [mm] as the cubicle size J1 for the lighting load equipment, the cubicle weight calculation unit 12K calculates 400 [kg] as the box weight K1 (calculation item). Furthermore, the cubicle weight calculation unit 12K calculates 420 kg as the weight K1 for the lighting load equipment enclosure when the cubicle size calculation unit 12J calculates a width of 600 mm x depth of 1400 mm as the cubicle size J1 for the lighting load equipment, and calculates 470 kg as the weight K1 for the lighting load equipment enclosure when the cubicle size calculation unit 12J calculates a width of 600 mm x depth of 2000 mm as the cubicle size J1 for the lighting load equipment. If the transformer capacity D3 for the lighting load equipment calculated by the transformer capacity calculation unit 12D is 100 [kVA] or less, the cubicle size calculation unit 12J calculates a width of 800 [mm] x depth of 1400 [mm] as the cubicle size J1 for the lighting load equipment based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates a weight of 430 [kg] as the box weight K1 for the lighting load equipment when the cubicle size calculation unit 12J calculates a width of 800 [mm] x depth of 1400 [mm] as the cubicle size J1 for the lighting load equipment.

[0031] If the transformer capacity D3 for the lighting load equipment calculated by the transformer capacity calculation unit 12D is 150 [kVA] or less, the cubicle size calculation unit 12J calculates a width of 800 [mm] x depth of 2000 [mm] as the cubicle size J1 for the lighting load equipment based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates a weight of 510 [kg] as the box weight K1 for the lighting load equipment when the cubicle size calculation unit 12J calculates a width of 800 [mm] x depth of 2000 [mm] as the cubicle size J1 for the lighting load equipment. If the transformer capacity D3 for lighting load equipment calculated by the transformer capacity calculation unit 12D is 300 [kVA] or less, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment to be either 1000 [mm] wide x 2000 [mm] deep or 1000 [mm] wide x 2200 [mm] deep, based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates the cubicle box weight K1 to be 550 [kg] if the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment to be 1000 [mm] wide x 2000 [mm] deep, and calculates the cubicle box weight K1 to be 780 [kg] if the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment to be 1000 [mm] wide x 2200 [mm] deep.

[0032] If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 50 [kVA] or less, the cubicle size calculation unit 12J calculates one of the following as the cubicle size J2 (calculation item): width 600 [mm] x depth 900 [mm], width 600 [mm] x depth 1400 [mm], or width 600 [mm] x depth 2000 [mm], based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates 400 [kg] as the weight K2 (calculation item) for the power load equipment when the cubicle size calculation unit 12J calculates width 600 [mm] x depth 900 [mm] as the cubicle size J2 for power load equipment. Furthermore, the cubicle weight calculation unit 12K calculates 420 kg as the power load equipment enclosure weight K2 when the cubicle size calculation unit 12J calculates a width of 600 mm x depth of 1400 mm as the power load equipment cubicle size J2, and calculates 470 kg as the power load equipment enclosure weight K2 when the cubicle size calculation unit 12J calculates a width of 600 mm x depth of 2000 mm as the power load equipment cubicle size J2. If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 100 [kVA] or less, the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 800 [mm] width x 1400 [mm] depth based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates a power load equipment box weight K2 of 430 [kg] when the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 800 [mm] width x 1400 [mm] depth.

[0033] If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 200 [kVA] or less, the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 800 [mm] width x 2000 [mm] depth based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates a power load equipment box weight K2 of 510 [kg] when the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 800 [mm] width x 2000 [mm] depth. If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 300 [kVA] or less, the cubicle size calculation unit 12J calculates the cubicle size J2 for power load equipment as either 1000 [mm] width x 2000 [mm] depth or 1000 [mm] width x 2200 [mm] depth, based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates the weight K2 for power load equipment as 550 [kg] if the cubicle size calculation unit 12J calculates the cubicle size J2 for power load equipment as 1000 [mm] width x 2000 [mm], and calculates the weight K2 for power load equipment as 780 [kg] if the cubicle size calculation unit 12J calculates the weight K2 for power load equipment as 1000 [mm] width x 2200 [mm].

[0034] If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 500 [kVA] or less, the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 1600 [mm] width x 2000 [mm] depth based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates a power load equipment box weight K2 of 800 [kg] when the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 1600 [mm] width x 2000 [mm] depth. If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 700 [kVA] or less, the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 2000 [mm] width x 2200 [mm] depth based on the cubicle box selection table. The cubicle weight calculation unit 12K calculates a power load equipment box weight K2 of 900 [kg] when the cubicle size calculation unit 12J calculates a power load equipment cubicle size J2 of 2000 [mm] width x 2200 [mm] depth.

[0035] In detail, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment with the smallest depth if there are multiple cubicle sizes J1 for the relevant lighting load equipment in the cubicle box selection table. Similarly, the cubicle size calculation unit 12J calculates the cubicle size J2 for power load equipment with the smallest depth if there are multiple cubicle sizes J2 for the relevant power load equipment in the cubicle box selection table. Furthermore, if the depth of the cubicle size J1 for lighting load equipment calculated by the cubicle size calculation unit 12J is smaller than the depth of the cubicle size J2 for power load equipment calculated by the cubicle size calculation unit 12J, the depth of the cubicle size J1 for lighting load equipment is increased until it becomes equal to the depth of the cubicle size J2 for power load equipment. On the other hand, if the depth of the cubicle size J1 for lighting load equipment calculated by the cubicle size calculation unit 12J is greater than the depth of the cubicle size J2 for power load equipment calculated by the cubicle size calculation unit 12J, the depth of the cubicle size J2 for power load equipment is increased until it becomes equal to the depth of the cubicle size J1 for lighting load equipment. Specifically, if the transformer capacity D3 for lighting load equipment calculated by the transformer capacity calculation unit 12D is 30 [kVA], the cubicle size calculation unit 12J calculates the smallest of the following sizes as the cubicle size J1 for lighting load equipment: width 600 [mm] x depth 900 [mm], width 600 [mm] x depth 1400 [mm], and width 600 [mm] x depth 2000 [mm], which is 600 [mm] x depth 900 [mm]. If the transformer capacity E3 for power load equipment calculated by the transformer capacity calculation unit 12E is 75 [kVA], the cubicle size calculation unit 12J calculates the cubicle size J2 for power load equipment: width 800 [mm] x depth 1400 [mm], which is 800 [mm] x depth 1400 [mm], based on the cubicle size selection table. The depth of 900 mm for the cubicle size J1 for lighting load equipment is increased until it is equal to the depth of 1400 mm for the cubicle size J2 for power load equipment. In other words, the cubicle size calculation unit 12J calculates a width of 600 mm and a depth of 1400 mm as the cubicle size J1 for lighting load equipment.

[0036] In the example shown in Figure 1, the cubicle weight calculation unit 12K calculates the cubicle weight K5 (calculation item) based on the transformer weight I1 for the lighting load equipment calculated by the transformer weight calculation unit 12I, the enclosure weight K1 for the lighting load equipment calculated by the cubicle weight calculation unit 12K, the main circuit breaker weight K3 (storage item or input item) for the lighting load equipment, the transformer weight I2 for the power load equipment calculated by the transformer weight calculation unit 12I, the enclosure weight K2 for the power load equipment calculated by the cubicle weight calculation unit 12K, the main circuit breaker weight K4 (storage item or input item) for the power load equipment, and the following equation (6). K5 = I1 + K1 + K3 + I2 + K2 + K4 (6)

[0037] In the examples shown in Figures 1, 7, and 8, when the transformer capacity D3 for the lighting load equipment is 30 [kVA] (i.e., the transformer weight I1 for the lighting load equipment is 180 [kg] and the enclosure weight K1 for the lighting load equipment is 400 [kg]), the main circuit breaker weight K3 for the lighting load equipment is 100 [kg], the transformer capacity E3 for the power load equipment is 50 [kVA] (i.e., the transformer weight I2 for the power load equipment is 295 [kg] and the enclosure weight K2 for the power load equipment is 400 [kg]), and the main circuit breaker weight K4 for the power load equipment is 100 [kg], the cubicle weight calculation unit 12K calculates 1475 (= 180 + 400 + 100 + 295 + 400 + 100) [kg] as the cubicle weight K5.

[0038] As described above, the transformer weight I1 for lighting load equipment is proportional to the transformer capacity D3 for lighting load equipment, and the transformer weight I2 for power load equipment is proportional to the transformer capacity E3 for power load equipment. When the transformer weight I1 and the transformer weight I2 for lighting load equipment decrease, the cubicle size J1 for lighting load equipment, the cubicle size J2 for power load equipment, and the cubicle weight K5 decrease. The transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment become smaller when load control that reduces the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is applied to the load equipment than when load control that reduces the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is not applied to the load equipment. Therefore, by applying load control to the load equipment that reduces the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the cubicle size J1 for lighting load equipment, the cubicle size J2 for power load equipment, and the cubicle weight K5 can be reduced. In addition, by reducing the cubicle size J1 for lighting load equipment, the cubicle size J2 for power load equipment, and the cubicle weight K5, the load-bearing capacity of the floor on which the cubicle is installed can be reduced.

[0039] In the example shown in Figure 1, the first wire cost calculation unit 12L calculates the unit price L1 (calculation item) of the wire connecting the cubicle and the main circuit breaker of the lighting panel based on the main circuit breaker capacity G4[A] calculated by the main circuit breaker capacity calculation unit 12G and the wire unit price list (storage item) (see Figure 9).

[0040] Figure 9 is a diagram showing the price list for electric wires. The price list for electric wires shows the relationship between the main capacity G4 [A] of the lighting panel calculated by the main capacity calculation unit 12G, the thickness (cross-sectional area) [mm2] of the electric wire connecting the cubicle and the main circuit breaker of the lighting panel, and the unit price L1 of the electric wire connecting the cubicle and the main circuit breaker of the lighting panel. In the example shown in Figure 9, when the main circuit breaker capacity G4 of the lighting panel calculated by the main circuit breaker capacity calculation unit 12G is 40[A], the first wire cost calculation unit 12L calculates 200[yen / m] as the unit price L1 (calculation item) for the wire connecting the cubicle and the main circuit breaker of the lighting panel, based on the wire unit price table. Furthermore, the first wire cost calculation unit 12L calculates the wire unit price L1 as 350 yen / m when the main capacity G4 of the lighting panel is 60[A], as 600 yen / m when the main capacity G4 of the lighting panel is 75[A], as 1000 yen / m when the main capacity G4 of the lighting panel is 100[A], as 1500 yen / m when the main capacity G4 of the lighting panel is 150[A], as 2200 yen / m when the main capacity G4 of the lighting panel is 200[A], and as 3000 yen / m when the main capacity G4 of the lighting panel is 250[A].

[0041] In the example shown in Figure 1, the first wire cost calculation unit 12L calculates the first wire cost L3, which is the cost of the wire connecting the cubicle and the main circuit breaker of the lighting panel, based on the unit price L1 of the wire connecting the cubicle and the main circuit breaker of the lighting panel, the distance L2 (input item) between the cubicle and the main circuit breaker of the lighting panel, and the following equation (7). L3 = L1 × L2 (7)

[0042] The second wire cost calculation unit 12M calculates the unit price M1 (calculation item) of the wires connecting the cubicle and the main capacity of the power distribution panel based on the main capacity H4[A] calculated by the main capacity calculation unit 12H and the wire unit price table (storage item) (see Figure 9). The wire unit price table used by the second wire cost calculation unit 12M is the same as the wire unit price table shown in Figure 9 (i.e., the wire unit price table used by the first wire cost calculation unit 12L). The second wire cost calculation unit 12M calculates the second wire cost M3, which is the cost of the wire connecting the cubicle and the main circuit breaker, based on the unit price M1 of the wire connecting the cubicle and the main circuit breaker of the power distribution panel, the distance M2 (input item) between the cubicle and the main circuit breaker of the power distribution panel, and the following equation (8). M3 = M1 × M2 (8)

[0043] The running cost calculation unit 12N calculates the running cost N7 when the actual installed load equipment connected to the design-supported electrical equipment is in operation, based on the time-of-day power consumption of the actual installed load equipment connected to the design-supported electrical equipment calculated by the power consumption calculation unit 12A. In detail, the running cost calculation unit 12N calculates the monthly basic charge N3 (=N1 × N2) (calculation item), which is the product of the contracted power N1 (the peak power value in the total load power usage graph A4 (see Figure 6) is calculated as the contracted power N1) and the basic charge unit price N2 (memory item or input item) in the building to which the actual installed load equipment is applied. The running cost calculation unit 12N also calculates the monthly usage charge N6 (=N4 × N5) (calculation item), which is the product of the monthly power usage N4 (=A5 × 30 days) (calculation item) calculated from the daily power usage A5 and the power usage unit price N5 (memory item or input item). In other words, the information acquired by the acquisition unit 11 includes the power usage unit price N5, which is the unit price of electricity used by the actual installed load equipment connected to the design support target electrical equipment, broken down by time of day. Furthermore, the running cost calculation unit 12N calculates the monthly running cost N7 (=N3+N6) (calculation item), which is the sum of the monthly basic charge N3 and the monthly usage charge N6. Specifically, the running cost calculation unit 12N calculates two types of running costs N7: the running cost N7A (calculation item) which is the running cost N7 when load control that reduces the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is not applied to the actual installed load equipment connected to the electrical equipment targeted for design support, and the running cost N7B (calculation item) which is the running cost N7 when load control that reduces the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is applied to the actual installed load equipment connected to the electrical equipment targeted for design support. The running cost reduction effect calculation unit 12P calculates the running cost reduction effect N7C (calculation item) based on the running cost without load control N7A and the running cost with load control N7B calculated by the running cost calculation unit 12N, and the following equation (9). N7C = N7A - N7B (9)

[0044] In the first example of the electrical equipment design support system 1 of the first embodiment, the running cost calculation unit 12N calculates the running cost N7 as the load control applied running cost N7B when peak cut control is applied to the actual installed load equipment connected to the electrical equipment to be supported in design. In the first example of the electrical equipment design support system 1 of the first embodiment, peak cut control is performed by applying, for example, the technology described on the website indicated at the URL below. https: / / www.kawamura.co.jp / catalog / index05.php?category=TYPE-KSS&mode=schhttps: / / www.kawamura.co.jp / panfpdf / images / l_ewmp_n.pdf

[0045] Figure 10 shows an example of the time-of-day power consumption of the actual installed load equipment when peak cut control is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. In the example shown in Figure 10, peak cut control is performed during the 12:00-16:00 time period, and the running cost reduction effect N7C is represented by the product of the amount of electricity used reduced during the 12:00-16:00 time period and the unit price of electricity used during the 12:00-16:00 time period N5.

[0046] In the first example of the electrical equipment design support system 1 of the first embodiment, the calculation unit 12 calculates the peak power value as the contracted power (see Figure 10) N1 when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the first example of the electrical equipment design support system 1 of the first embodiment, the transformer capacity calculation unit 12D for lighting load equipment calculates the transformer capacity D3 for lighting load equipment (a value smaller than the transformer capacity D3 for lighting load equipment when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment), and the transformer capacity calculation unit 12E for power load equipment calculates the transformer capacity E3 for power load equipment (a value smaller than the transformer capacity E3 for power load equipment when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment). Furthermore, in the first example of the electrical equipment design support system 1 of the first embodiment, the cubicle power receiving capacity calculation unit 12F calculates the cubicle power receiving capacity F1 when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment (a value smaller than the cubicle power receiving capacity F1 when peak cut control is not performed). The cubicle power receiving capacity calculation unit 12F also calculates the difference between the cubicle power receiving capacity F1 when peak cut control is not performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, which is the cubicle power receiving capacity without load control, and the cubicle power receiving capacity F1 when peak cut control is performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, which is the cubicle power receiving capacity with load control, as the cubicle power receiving capacity reduction effect.

[0047] Furthermore, in the first example of the electrical equipment design support system 1 of the first embodiment, the lighting panel main capacity calculation unit 12G calculates the lighting panel main capacity G4 (a value smaller than the lighting panel main capacity G4 when peak cut control is not performed) when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, and the power panel main capacity calculation unit 12H calculates the power panel main capacity H4 (a value smaller than the power panel main capacity H4 when peak cut control is not performed) when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the first example of the electrical equipment design support system 1 of the first embodiment, the transformer weight calculation unit 12I calculates the transformer weight I1 for lighting load equipment (a value smaller than the transformer weight I1 for lighting load equipment when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the transformer weight I2 for power load equipment (a value smaller than the transformer weight I2 for power load equipment when peak cut control is not performed). Furthermore, in the first example of the electrical equipment design support system 1 of the first embodiment, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment (a value smaller than the cubicle size J1 for lighting load equipment when peak cut control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the cubicle size J2 for power load equipment (a value smaller than the cubicle size J2 for power load equipment when peak cut control is not performed). Furthermore, in the first example of the electrical equipment design support system 1 of the first embodiment, the cubicle weight calculation unit 12K calculates the weight K1 of the casing for the lighting load equipment (a value smaller than the weight K1 of the casing for the lighting load equipment when peak cut control is performed as load control to reduce the transformer capacity D3 for the lighting load equipment and the transformer capacity E3 for the power load equipment), and the weight K2 of the casing for the power load equipment (a value smaller than the weight K2 of the casing for the power load equipment when peak cut control is not performed).

[0048] In the second example of the electrical equipment design support system 1 of the first embodiment, the running cost calculation unit 12N calculates the running cost N7 as the load control applicable running cost N7B when peak shift control without a battery is applied to the actual installed load equipment connected to the electrical equipment to be designed. In a second example of the electrical equipment design support system 1 of the first embodiment, peak shift control without the use of a battery is performed by applying, for example, the technology described on the website indicated at the URL below. https: / / www.kawamura.co.jp / products / wayEV /

[0049] Figure 11 shows an example of the time-of-day power consumption of the actual installed load equipment when peak shift control without the use of batteries is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. In the peak shift control without battery storage shown in Figure 11, some of the actual installed load equipment (electric vehicle chargers) that were operating during peak hours (12:00 to 16:00) (i.e., during hours when the electricity usage unit price N5 is high), which is when the power consumption of multiple actual installed load equipment (e.g., electric vehicle chargers and load equipment other than electric vehicle chargers) connected to the electrical equipment targeted for design support exceeds a predetermined value (specifically, "contracted power"), will no longer be able to operate during peak hours (12:00 to 16:00). Furthermore, some of the actual installed load equipment (for example, electric vehicle chargers) are operated during off-peak hours (4am-7am and 6pm-10pm) when the power consumption of multiple actual installed load equipment (electric vehicle chargers and other load equipment) connected to the design-supported electrical equipment is below a predetermined value (contracted power) (i.e., during hours when the unit price of electricity consumption N5 is low).

[0050] In the second example of the electrical equipment design support system 1 of the first embodiment, the calculation unit 12 calculates the peak power value as the contracted power (see Figure 11) N1 when peak shift control without using a storage battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the second example of the electrical equipment design support system 1 of the first embodiment, the transformer capacity calculation unit 12D for lighting load equipment calculates the transformer capacity D3 for lighting load equipment (a value smaller than the transformer capacity D3 for lighting load equipment when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment), and the transformer capacity calculation unit 12E calculates the transformer capacity E3 for power load equipment (a value smaller than the transformer capacity E3 for power load equipment when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment). Furthermore, in the second example of the electrical equipment design support system 1 of the first embodiment, the cubicle power receiving capacity calculation unit 12F calculates the cubicle power receiving capacity F1 when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment (a value smaller than the cubicle power receiving capacity F1 when peak shift control without a battery is not performed). The cubicle power receiving capacity calculation unit 12F also calculates the difference between the cubicle power receiving capacity without load control, which is the cubicle power receiving capacity F1 when peak shift control without a battery is not performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, and the cubicle power receiving capacity with load control, which is the cubicle power receiving capacity F1 when peak shift control without a battery is performed to reduce running costs N7, as the cubicle power receiving capacity reduction effect.

[0051] Furthermore, in the second example of the electrical equipment design support system 1 of the first embodiment, the lighting panel main capacity calculation unit 12G calculates the lighting panel main capacity G4 (a value smaller than the lighting panel main capacity G4 when peak shift control without a battery is not performed) when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, and the power panel main capacity calculation unit 12H calculates the power panel main capacity H4 (a value smaller than the power panel main capacity H4 when peak shift control without a battery is not performed) when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the second example of the electrical equipment design support system 1 of the first embodiment, the transformer weight calculation unit 12I calculates the transformer weight I1 for lighting load equipment (a value smaller than the transformer weight I1 for lighting load equipment when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the transformer weight I2 for power load equipment (a value smaller than the transformer weight I2 for power load equipment when peak shift control without a battery is not performed). Furthermore, in the second example of the electrical equipment design support system 1 of the first embodiment, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment (a value smaller than the cubicle size J1 for lighting load equipment when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the cubicle size J2 for power load equipment (a value smaller than the cubicle size J2 for power load equipment when peak shift control without a battery is not performed). Furthermore, in the second example of the electrical equipment design support system 1 of the first embodiment, the cubicle weight calculation unit 12K calculates the weight K1 of the cubicle enclosure for lighting load equipment (a value smaller than the weight K1 of the cubicle enclosure for lighting load equipment when peak shift control without a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the weight K2 of the cubicle enclosure for power load equipment (a value smaller than the weight K2 of the cubicle enclosure for power load equipment when peak shift control without a battery is not performed).

[0052] In the third example of the electrical equipment design support system 1 of the first embodiment, the running cost calculation unit 12N calculates the running cost N7 as the load control applicable running cost N7B when peak shift control using a storage battery is applied to the actual installed load equipment connected to the electrical equipment to be designed. In the third example of the electrical equipment design support system 1 of the first embodiment, peak shift control using a battery is performed by applying, for example, the technology described on the website indicated at the URL below. https: / / ls.ipros.jp / product / detail / 2000266198 /

[0053] Figure 12 shows an example of the time-of-day power consumption of an actual installed load facility when peak shift control using a battery is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. In the peak shift control using a battery shown in Figure 12, charging of the battery occurs during off-peak hours (4am-7am and 6pm-10pm) when the amount of electricity used by multiple actual installed load equipment connected to the electrical equipment being designed is less than a predetermined value (specifically, "contracted power") (i.e., during hours when the electricity usage unit price N5 is low). Furthermore, the power charged to the battery during off-peak hours (4am-7am and 6pm-10pm) is discharged during peak hours (12pm-4pm) (i.e., during peak hours when the electricity usage unit price N5 is high), which is when the amount of electricity used by multiple actual installed load equipment connected to the design-supported electrical equipment is likely to exceed a predetermined value (contracted power). This discharged power is then used by the multiple actual installed load equipment connected to the design-supported electrical equipment.

[0054] In the third example of the electrical equipment design support system 1 of the first embodiment, the calculation unit 12 calculates the peak power value as the contracted power (see Figure 12) N1 when peak shift control using a storage battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the third example of the electrical equipment design support system 1 of the first embodiment, the transformer capacity calculation unit 12D for lighting load equipment calculates the transformer capacity D3 for lighting load equipment (a value smaller than the transformer capacity D3 for lighting load equipment when peak shift control using a storage battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment), and the transformer capacity calculation unit 12E calculates the transformer capacity E3 for power load equipment (a value smaller than the transformer capacity E3 for power load equipment when peak shift control using a storage battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment). Furthermore, in the third example of the electrical equipment design support system 1 of the first embodiment, the cubicle power receiving capacity calculation unit 12F calculates the cubicle power receiving capacity F1 (a value smaller than the cubicle power receiving capacity F1 when peak shift control using a storage battery is not performed) when peak shift control using a storage battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. The cubicle power receiving capacity calculation unit 12F also calculates the difference between the cubicle power receiving capacity F1 when peak shift control using a storage battery is not performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, which is the cubicle power receiving capacity without load control, and the cubicle power receiving capacity F1 when peak shift control using a storage battery is performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, which is the cubicle power receiving capacity with load control, as the cubicle power receiving capacity reduction effect.

[0055] Furthermore, in the third example of the electrical equipment design support system 1 of the first embodiment, the lighting panel main capacity calculation unit 12G calculates the lighting panel main capacity G4 (a value smaller than the lighting panel main capacity G4 when peak shift control using a battery is not performed) when peak shift control using a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, and the power panel main capacity calculation unit 12H calculates the power panel main capacity H4 (a value smaller than the power panel main capacity H4 when peak shift control using a battery is not performed) when peak shift control using a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the third example of the electrical equipment design support system 1 of the first embodiment, the transformer weight calculation unit 12I calculates the transformer weight I1 for lighting load equipment (a value smaller than the transformer weight I1 for lighting load equipment when peak shift control using a battery is not performed) and the transformer weight I2 for power load equipment (a value smaller than the transformer weight I2 for power load equipment when peak shift control using a battery is not performed) when peak shift control using a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the third example of the electrical equipment design support system 1 of the first embodiment, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment (a value smaller than the cubicle size J1 for lighting load equipment when peak shift control using a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the cubicle size J2 for power load equipment (a value smaller than the cubicle size J2 for power load equipment when peak shift control using a battery is not performed). Furthermore, in the third example of the electrical equipment design support system 1 of the first embodiment, the cubicle weight calculation unit 12K calculates the weight K1 of the cubicle enclosure for lighting load equipment (a value smaller than the weight K1 of the cubicle enclosure for lighting load equipment when peak shift control using a battery is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the weight K2 of the cubicle enclosure for power load equipment (a value smaller than the weight K2 of the cubicle enclosure for power load equipment when peak shift control using a battery is not performed).

[0056] In the fourth example of the electrical equipment design support system 1 of the first embodiment, the running cost calculation unit 12N calculates the running cost N7 as the load control applied running cost N7B, which is the running cost N7 when energy-saving control is applied to the actual installed load equipment connected to the electrical equipment to be supported in design. In the fourth example of the electrical equipment design support system 1 of the first embodiment, energy-saving control (for example, control using "energy-saving support equipment", dimming control, etc.) is performed by applying technologies such as those described on the website indicated by the URL below. https: / / www.kawamura.co.jp / products / emoni_portal / index.html https: / / www.jlma.or.jp / led-navi / contents / cont18_dimmingSystem.htm https: / / www.pref.osaka.lg.jp / attach / 6800 / 00028096 / gijyutu_40_.pdf

[0057] Figure 13 shows an example of the time-of-day power consumption of the actual installed load equipment when energy-saving control is implemented as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. In the energy-saving control shown in Figure 13, energy-saving control (dimming control) is performed during all hours when lighting fixtures are used (1:00 to 24:00), preventing the power consumption of multiple actual installed load equipment connected to the electrical equipment targeted for design support from exceeding a predetermined value (contracted power).

[0058] In the fourth example of the electrical equipment design support system 1 of the first embodiment, the calculation unit 12 calculates the peak power value as the contracted power (see Figure 13) N1 when energy-saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the fourth example of the electrical equipment design support system 1 of the first embodiment, the transformer capacity calculation unit 12D for lighting load equipment calculates the transformer capacity D3 for lighting load equipment (a value smaller than the transformer capacity D3 for lighting load equipment when energy saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment), and the transformer capacity calculation unit 12E calculates the transformer capacity E3 for power load equipment (a value smaller than the transformer capacity E3 for power load equipment when energy saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment). Furthermore, in the fourth example of the electrical equipment design support system 1 of the first embodiment, the cubicle power receiving capacity calculation unit 12F calculates the cubicle power receiving capacity F1 (a value smaller than the cubicle power receiving capacity F1 when energy-saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) when energy-saving control is performed. The cubicle power receiving capacity calculation unit 12F also calculates the difference between the cubicle power receiving capacity without load control, which is the cubicle power receiving capacity F1 when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is not performed, and the cubicle power receiving capacity with load control, which is the cubicle power receiving capacity F1 when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is performed, as the cubicle power receiving capacity reduction effect.

[0059] Furthermore, in the fourth example of the electrical equipment design support system 1 of the first embodiment, the lighting panel main capacity calculation unit 12G calculates the lighting panel main capacity G4 (a value smaller than the lighting panel main capacity G4 when energy-saving control is not performed) when energy-saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, and the power panel main capacity calculation unit 12H calculates the power panel main capacity H4 (a value smaller than the power panel main capacity H4 when energy-saving control is not performed) when energy-saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. Furthermore, in the fourth example of the electrical equipment design support system 1 of the first embodiment, the transformer weight calculation unit 12I calculates the transformer weight I1 for lighting load equipment (a value smaller than the transformer weight I1 for lighting load equipment when energy saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment) and the transformer weight I2 for power load equipment (a value smaller than the transformer weight I2 for power load equipment when energy saving control is not performed). Furthermore, in the fourth example of the electrical equipment design support system 1 of the first embodiment, the cubicle size calculation unit 12J calculates the cubicle size J1 for lighting load equipment (a value smaller than the cubicle size J1 for lighting load equipment when energy-saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment), and the cubicle size J2 for power load equipment (a value smaller than the cubicle size J2 for power load equipment when energy-saving control is not performed). Furthermore, in the fourth example of the electrical equipment design support system 1 of the first embodiment, the cubicle weight calculation unit 12K calculates the weight K1 of the casing for lighting load equipment (a value smaller than the weight K1 of the casing for lighting load equipment when energy saving control is performed as load control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment), and the weight K2 of the casing for power load equipment (a value smaller than the weight K2 of the casing for power load equipment when energy saving control is not performed).

[0060] In the fifth example of the electrical equipment design support system 1 of the first embodiment, the running cost calculation unit 12N calculates the running cost N7 as the load control application running cost N7B when one of the above-mentioned peak cut control, peak shift control without a battery, peak shift control with a battery, and energy saving control (for example, energy saving control) is applied to the lighting load equipment (lighting fixtures) connected to the electrical equipment to be supported in design, and when another of the above-mentioned peak cut control, peak shift control without a battery, peak shift control with a battery, and energy saving control (for example, peak cut control) is applied to the power load equipment (air conditioning) connected to the electrical equipment to be supported in design. In another example, the running cost calculation unit 12N may calculate the running cost N7 as the load control applied running cost N7B when the same control (such as peak cut control) is applied to the lighting load equipment (lighting fixtures) connected to the electrical equipment to be supported in design and to the power load equipment (air conditioning) connected to the electrical equipment to be supported in design. In another example, the running cost calculation unit 12N may calculate the running cost N7 as the load control applied running cost N7B when arbitrary control, such as peak cut control, is applied to the lighting load equipment (lighting fixtures), the power load equipment (air conditioning) connected to the electrical equipment to be supported in the design, and the load equipment other than lighting and power connected to the electrical equipment to be supported in the design.

[0061] As described above, in the example shown in Figure 2, the sample data A1 acquired by the acquisition unit 11 includes office lighting sample data A11 and office air conditioning sample data A12. In the example shown in Figure 3, the power consumption calculation unit 12A calculates the time-of-day power consumption when the actual installed load equipment (air conditioning (power load)) connected to the design-supported electrical equipment is in operation by multiplying the office air conditioning sample data A12 by coefficient A2 (value "3"). Furthermore, in the example shown in Figure 4, the power consumption calculation unit 12A calculates the time-of-day power consumption when the actual installed load equipment (lighting fixtures (lighting load)) connected to the design-supported electrical equipment is in operation by multiplying the office lighting sample data A11 by coefficient A2. In other words, in the examples shown in Figures 2 to 4, the value of coefficient A2 multiplied by the office air conditioning sample data A12 and the value of coefficient A2 multiplied by the office lighting sample data A11 may be equal. On the other hand, in the sixth example of the electrical equipment design support system 1 of the first embodiment, the sample data A1 acquired by the acquisition unit 11 includes lighting load sample data and power load sample data. Furthermore, the power consumption calculation unit 12A calculates the time-of-day power consumption of the lighting load when the lighting load equipment connected to the electrical equipment to be designed is in operation, based on the lighting load sample data and a lighting load coefficient that shows the correspondence between the time-of-day power consumption when the lighting load equipment corresponding to the lighting load sample data is in operation and the time-of-day power consumption when the lighting load equipment connected to the electrical equipment to be designed is in operation (that is, a coefficient that should be multiplied by the lighting load sample data in order to calculate the time-of-day power consumption when the lighting load equipment connected to the electrical equipment to be designed is in operation). Furthermore, the power consumption calculation unit 12A calculates the power load time-by-time power consumption when the power load equipment connected to the electrical equipment to be designed is in operation, based on the power load sample data and a power load coefficient that shows the correspondence between the time-by-time power consumption when the power load equipment corresponding to the power load sample data is in operation and the time-by-time power consumption when the power load equipment connected to the electrical equipment to be designed is in operation (i.e., a coefficient that should be multiplied by the power load sample data in order to calculate the time-by-time power consumption when the power load equipment connected to the electrical equipment to be designed is in operation). In other words, in the sixth example of the electrical equipment design support system 1 of the first embodiment, the value of the coefficient that should be multiplied by the lighting load sample data in order to calculate the time-by-time power consumption when the lighting load equipment connected to the electrical equipment to be designed is in operation is fundamentally different from the value of the coefficient that should be multiplied by the power load sample data in order to calculate the time-by-time power consumption when the power load equipment connected to the electrical equipment to be designed is in operation.

[0062] Figure 14 is a flowchart illustrating an example of the process performed in the electrical equipment design support system 1 of the first embodiment. In the example shown in Figure 14, in step S1, the acquisition unit 11 acquires information used in the design of the electrical equipment to be supported in the design. The information acquired in step S1 includes sample data A1, which shows the power consumption by time of day when the sample load equipment is in operation, and information showing the power consumption and number of actual load equipment connected to the electrical equipment to be supported in the design. The information showing the power consumption and number of actual load equipment is used to set coefficient A2.

[0063] Next, in step S2, the calculation unit 12 calculates the calculation items from the information acquired in step S1. In detail, in step S2A, the power consumption calculation unit 12A calculates the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, based on sample data A1, coefficient A2 which shows the correspondence between the power consumption by time of day when the sample load equipment is in operation and the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, etc. Furthermore, in step S2B, the lighting load power peak value calculation unit 12B calculates the peak value of the total lighting load power consumption graph A31X for the actual installed load equipment (lighting fixtures (lighting load)) (i.e., the peak value of power data by time of day), and the power load power peak value calculation unit 12C calculates the peak value of the total power load power consumption graph A32X for the actual installed load equipment (air conditioning (power load)) (i.e., the peak value of power data by time of day). Furthermore, in step S2C, the transformer capacity calculation unit 12D for lighting load equipment calculates the transformer capacity D3 for lighting load equipment based on the peak power value B1 etc. calculated in step S2B, and the transformer capacity calculation unit 12E for power load equipment calculates the transformer capacity E3 for power load equipment based on the peak power value C1 etc. calculated in step S2B.

[0064] According to the electrical equipment design support system 1 of the first embodiment, the transformer capacity for the actual installed load equipment, which is the load equipment connected to the electrical equipment that is the target of the design support of the electrical equipment design support system 1, can be appropriately calculated.

[0065] In another example of the electrical equipment design support system 1 of the first embodiment, the calculation unit 12 may calculate the initial cost of a cubicle, etc. Figure 15 shows an example of the initial cost of a cubicle calculated by the calculation unit 12. In the example shown in Figure 15, when the cubicle power receiving capacity calculation unit 12F calculates a value of 200 kVA or less as the cubicle power receiving capacity F1 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 3 million yen as the initial cost of the cubicle. When the cubicle power receiving capacity calculation unit 12F calculates a value of 200 to 500 kVA as the cubicle power receiving capacity F1 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 5 million yen as the initial cost of the cubicle. When the cubicle power receiving capacity calculation unit 12F calculates a value of 500 to 1000 kVA as the cubicle power receiving capacity F1 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 10 million yen as the initial cost of the cubicle. When calculating a value of 1000 to 2000 kVA as the cubicle power receiving capacity F1, the calculation unit 12 calculates 20 million yen as the initial cost of the cubicle. When the cubicle power receiving capacity calculation unit 12F calculates a value of 2000 to 3000 kVA as the cubicle power receiving capacity F1 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 35 million yen as the initial cost of the cubicle. When the cubicle power receiving capacity calculation unit 12F calculates a value of 3000 to 4000 kVA as the cubicle power receiving capacity F1 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 50 million yen as the initial cost of the cubicle. When load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the initial cost of the cubicle calculated by the calculation unit 12 will be cheaper than the initial cost of the cubicle calculated by the calculation unit 12 when load control is not applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. The calculation unit 12 may also calculate the difference between the initial cost of the cubicle without load control, which is the initial cost of the cubicle when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is not performed, and the initial cost of the cubicle with load control, which is the initial cost of the cubicle when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is performed, as the initial cost reduction effect of the cubicle.

[0066] In the example shown in Figure 15, the calculation unit 12 calculates the initial cost of the lighting panel. Specifically, when the lighting panel main breaker capacity calculation unit 12G calculates a value of 50 kVA or less as the lighting panel main breaker capacity G4 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 100,000 yen as the initial cost of the lighting panel. When the main capacity calculation unit 12G of the lighting panel calculates a value of 50 to 100 kVA as the main capacity G4 of the lighting panel when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 150,000 yen as the initial cost of the lighting panel, and when the main capacity calculation unit 12G of the lighting panel calculates a value of 100 to 150 kVA as the main capacity G4 of the lighting panel when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 200,000 yen as the initial cost of the lighting panel, and when the main capacity calculation unit 12G of the lighting panel calculates a value of 100 to 150 kVA as the main capacity G4 of the lighting panel when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment When calculating a value of 150-200 kVA for the main capacity G4 of the lighting panel, the calculation unit 12 calculates 250,000 yen as the initial cost of the lighting panel. When the main capacity calculation unit 12G calculates a value of 200-250 kVA for the main capacity G4 of the lighting panel when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 300,000 yen as the initial cost of the lighting panel. When the main capacity calculation unit 12G calculates a value of 250-400 kVA for the main capacity G4 of the lighting panel when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 600,000 yen as the initial cost of the lighting panel. When load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the initial cost of the lighting panel calculated by the calculation unit 12 will be cheaper than the initial cost of the lighting panel calculated by the calculation unit 12 when load control is not applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. The calculation unit 12 may also calculate the initial cost reduction effect of the lighting panel as the difference between the initial cost of the lighting panel without load control, which is the initial cost of the lighting panel when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is not performed, and the initial cost of the lighting panel with load control, which is the initial cost of the lighting panel when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is performed.

[0067] Furthermore, in the example shown in Figure 15, the calculation unit 12 calculates the initial cost of the power distribution panel. Specifically, when the power distribution panel main capacity calculation unit 12H calculates a value of 50 kVA or less as the power distribution panel main capacity H4 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 150,000 yen as the initial cost of the power distribution panel. When the power distribution panel main capacity calculation unit 12H calculates a value of 50 to 100 kVA as the power distribution panel main capacity H4 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 200,000 yen as the initial cost of the power distribution panel, and when the power distribution panel main capacity calculation unit 12H calculates a value of 100 to 150 kVA as the power distribution panel main capacity H4 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the calculation unit 12 calculates 250,000 yen as the initial cost of the power distribution panel, and when the power distribution panel main capacity calculation unit 12H calculates a value of 100 to 150 kVA as the power distribution panel main capacity H4 when load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment When calculating a value of 150 to 200 kVA for the main capacity H4 of the power distribution panel, the calculation unit 12 calculates 300,000 yen as the initial cost of the power distribution panel. When the main capacity calculation unit 12H calculates a value of 200 to 250 kVA for the main capacity H4 of the power distribution panel when load control is applied to reduce the transformer capacity D3 for the lighting load equipment and the transformer capacity E3 for the power load equipment, the calculation unit 12 calculates 350,000 yen as the initial cost of the power distribution panel. When the main capacity calculation unit 12H calculates a value of 250 to 400 kVA for the main capacity H4 of the power distribution panel when load control is applied to reduce the transformer capacity D3 for the lighting load equipment and the transformer capacity E3 for the power load equipment, the calculation unit 12 calculates 700,000 yen as the initial cost of the power distribution panel. When load control is applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the initial cost of the power distribution panel calculated by the calculation unit 12 will be lower than the initial cost of the power distribution panel calculated by the calculation unit 12 when load control is not applied to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment. The calculation unit 12 may also calculate the difference between the initial cost of the lighting distribution panel without load control (initial cost when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is not performed) and the initial cost of the lighting distribution panel with load control (initial cost when energy-saving control to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment is performed) as the power distribution panel initial cost reduction effect.

[0068] In the example shown in Figure 15, the calculation unit 12 does not calculate the sum of the initial costs of the cubicle, the lighting panel, and the power panel. However, in other examples, the calculation unit 12 may calculate the sum of the initial costs of the cubicle, the lighting panel, and the power panel. In another example, the calculation unit 12 may calculate the sum of the initial cost of the cubicle, the initial cost of the lighting panel, the initial cost of the power panel, the first wire cost L3 calculated by the first wire cost calculation unit 12L, and the second wire cost M3 calculated by the second wire cost calculation unit 12M. In another example, the calculation unit 12 may calculate the total initial cost reduction effect, which is the difference between the sum of the initial cost of the cubicle when energy-saving control is not performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the initial cost of the lighting panel, the initial cost of the power panel, the first wire cost L3 calculated by the first wire cost calculation unit 12L, and the second wire cost M3 calculated by the second wire cost calculation unit 12M, and the sum of the initial cost of the cubicle when energy-saving control is performed to reduce the transformer capacity D3 for lighting load equipment and the transformer capacity E3 for power load equipment, the initial cost of the lighting panel, the initial cost of the power panel, the first wire cost L3 calculated by the first wire cost calculation unit 12L, and the second wire cost M3 calculated by the second wire cost calculation unit 12M.

[0069] <Second Embodiment> The following describes a second embodiment of the electrical equipment design support system, electrical equipment design support method, and program of the present invention. The electrical equipment design support system 1 of the second embodiment is configured in the same way as the electrical equipment design support system 1 of the first embodiment described above, except for the points described later. Therefore, the electrical equipment design support system 1 of the second embodiment can achieve the same effects as the electrical equipment design support system 1 of the first embodiment described above, except for the points described later.

[0070] Figure 16 shows an example of the electrical equipment design support system 1 according to the second embodiment. In the example shown in Figure 16, the electrical equipment design support system 1 of the second embodiment assists the user of the electrical equipment design support system 1 in designing electrical equipment, similar to the electrical equipment design support system 1 of the first embodiment (P.23). The electrical equipment design support system 1 of the second embodiment includes an acquisition unit 11 and a calculation unit 12. The acquisition unit 11 of the electrical equipment design support system 1 in the second embodiment acquires information ("input items" and "storage items") used in the design of the electrical equipment to be supported, similar to the acquisition unit 11 of the electrical equipment design support system 1 in the first embodiment. The information acquired by the acquisition unit 11 of the electrical equipment design support system 1 in the second embodiment includes sample data A1, which is information showing the power consumption by time of day when the sample load equipment is in operation, similar to the information acquired by the acquisition unit 11 of the electrical equipment design support system 1 in the first embodiment.

[0071] In the electrical equipment design support system 1 of the second embodiment, the sample data A1 acquired by the acquisition unit 11 includes the first load sample data A1A, the second load sample data A1B, and so on. The first load sample data A1A is information showing the time-of-day power consumption of the first sample load equipment corresponding to the first actual installed load equipment described later. In other words, the first load sample data A1A is information showing a sample of time-of-day power consumption when the load equipment is the same type as the first actual installed load equipment described later, and the power consumption and number of load equipment are at the standard values.

[0072] The second load sample data A1B is information showing the time-of-day electricity consumption of the second sample load equipment corresponding to the second actual installed load equipment described later. In other words, the second load sample data A1B is information showing a sample of time-of-day electricity consumption when the load equipment is the same type as the second actual installed load equipment described later, and the power consumption and number of load equipment are at the standard values.

[0073] In the example shown in Figure 16, the calculation unit 12 calculates calculation items from the information (input items and stored items) acquired by the acquisition unit 11. The calculation unit 12 includes a power consumption calculation unit 12A, a power peak value calculation unit 12BC, and a transformer capacity calculation unit 12DE. The power consumption calculation unit 12A calculates the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, based on sample data A1, a coefficient A2 that shows the correspondence between the power consumption by time of day when the sample load equipment (a predetermined load equipment corresponding to sample data A1) is in operation and the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, and other calculation items. Coefficient A2 is a coefficient that should be multiplied by the first load sample data A1A in order to calculate the time-of-day power consumption when the first actual installed load equipment connected to the design-supported electrical equipment is in operation, and is a coefficient that should be multiplied by the second load sample data A1B in order to calculate the time-of-day power consumption when the second actual installed load equipment connected to the design-supported electrical equipment is in operation.

[0074] In the example shown in Figure 16, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the first actual installed load equipment connected to the design-supported electrical equipment is in operation by multiplying the first load sample data A1A by coefficient A2 (for details, it creates a load-specific power consumption graph A3A of the first actual installed load equipment (see Figure 17)). Furthermore, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the second actual installed load equipment (an actual installed load equipment different from the first actual installed load equipment) connected to the electrical equipment targeted for design support is in operation, by multiplying the second load sample data A1B, which is different from the first load sample data A1A, by coefficient A2 (in detail, it creates a load-specific power consumption graph A3B of the second actual installed load equipment (see Figure 17)).

[0075] Figure 17 shows an example of processing by the power consumption calculation unit 12A of the electrical equipment design support system 1 of the second embodiment. In the example shown in Figure 17, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when all actual installed load equipment connected to the design-supported electrical equipment (in the example shown in Figure 17, the first and second actual installed load equipment) is in operation by stacking the load-specific power consumption graph A3A of the first actual installed load equipment and the load-specific power consumption graph A3B of the second actual installed load equipment. In other words, the power consumption calculation unit 12A creates a total load power consumption graph A4 (=A3A+A3B) by stacking the load-specific power consumption graph A3A of the first actual installed load equipment and the load-specific power consumption graph A3B of the second actual installed load equipment. Furthermore, the power consumption calculation unit 12A calculates the daily power consumption A5 (calculation item) of all actual installed load equipment connected to the design-supported electrical equipment (in the example shown in Figure 17, the first and second actual installed load equipment) by summing up the power consumption for all time periods (1:00 to 24:00) included in the total load power consumption graph A4.

[0076] In the example shown in Figure 16, the power peak value calculation unit 12BC calculates the peak value of the total load power usage graph A4 (the values ​​on the vertical axis at 11:00 and 16:00 in the example shown in Figure 17) as the "power peak value BC" (calculation item). The transformer capacity calculation unit 12DE calculates the transformer capacity DE3 (calculation item) based on the power peak value BC calculated by the power peak value calculation unit 12BC, the margin factor DE1 for calculating the transformer capacity DE3, the power factor DE2 for calculating the transformer capacity DE3, and, for example, the following equation (11). The margin factor DE1 for calculating the transformer capacity DE3 is a stored item or an input item. The power factor DE2 for calculating the transformer capacity DE3 is a stored item. DE3 = BC × DE1 ÷ DE2 (11)

[0077] <Third Embodiment> A third embodiment of the electrical equipment design support system, electrical equipment design support method, and program of the present invention will be described below. The electrical equipment design support system 1 of the third embodiment is configured in the same way as the electrical equipment design support system 1 of the first or second embodiment described above, except for the points described later. Therefore, the electrical equipment design support system 1 of the third embodiment can achieve the same effects as the electrical equipment design support system 1 of the first or second embodiment described above, except for the points described later.

[0078] The electrical equipment design support system 1 of the third embodiment is configured similarly to the electrical equipment design support system 1 of the second embodiment shown in Figure 16. The acquisition unit 11 of the electrical equipment design support system 1 in the third embodiment acquires information ("input items" and "storage items") used in the design of the electrical equipment to be supported, similar to the acquisition unit 11 of the electrical equipment design support system 1 in the first and second embodiments. The information acquired by the acquisition unit 11 of the electrical equipment design support system 1 in the third embodiment includes sample data A1, which is information showing the power consumption by time of day when the sample load equipment is in operation, similar to the information acquired by the acquisition unit 11 of the electrical equipment design support system 1 in the first and second embodiments.

[0079] In the third embodiment of the electrical equipment design support system 1, similar to the second embodiment of the electrical equipment design support system 1, the sample data A1 acquired by the acquisition unit 11 includes the first load sample data A1A, the second load sample data A1B, etc. As described above, the first load sample data A1A is information showing the time-of-day power consumption of the first sample load equipment corresponding to the first actual installed load equipment. In other words, the first load sample data A1A is information showing a sample of time-of-day power consumption when the load equipment is the same type as the first actual installed load equipment and the power consumption and number of load equipment are at the standard values.

[0080] As described above, the second load sample data A1B is information showing the time-of-day power consumption of the second sample load equipment corresponding to the second actual installed load equipment. In other words, the second load sample data A1B is information showing a sample of time-of-day power consumption when the load equipment is the same type as the second actual installed load equipment and the power consumption and number of load equipment are at the standard values.

[0081] In the third embodiment of the electrical equipment design support system 1, similar to the example shown in Figure 16 of the second embodiment of the electrical equipment design support system 1, the calculation unit 12 calculates calculation items from the information (input items and stored items) acquired by the acquisition unit 11. The calculation unit 12 includes a power consumption calculation unit 12A, a power peak value calculation unit 12BC, and a transformer capacity calculation unit 12DE. The power consumption calculation unit 12A calculates the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, based on sample data A1, a coefficient A2 that shows the correspondence between the power consumption by time of day when the sample load equipment (a predetermined load equipment corresponding to sample data A1) is in operation and the power consumption by time of day when the actual installed load equipment connected to the electrical equipment to be designed is in operation, and other calculation items. Coefficient A2 is a coefficient that should be multiplied by the first load sample data A1A in order to calculate the time-of-day power consumption when the first actual installed load equipment connected to the design-supported electrical equipment is in operation, and is a coefficient that should be multiplied by the second load sample data A1B in order to calculate the time-of-day power consumption when the second actual installed load equipment connected to the design-supported electrical equipment is in operation.

[0082] In the third embodiment of the electrical equipment design support system 1, similar to the example shown in Figure 16 of the second embodiment of the electrical equipment design support system 1, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the first actual installed load equipment connected to the electrical equipment to be designed is in operation by multiplying the first load sample data A1A by a coefficient A2 (in detail, as described above, a load-specific power consumption graph A3A of the first actual installed load equipment (see Figure 17) is created). Furthermore, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when the second actual installed load equipment (an actual installed load equipment different from the first actual installed load equipment) connected to the electrical equipment targeted for design support is in operation, by multiplying the second load sample data A1B, which is different from the first load sample data A1A, by coefficient A2 (in detail, as described above, a load-specific power consumption graph A3B of the second actual installed load equipment (see Figure 17) is created).

[0083] In the electrical equipment design support system 1 of the third embodiment, similar to the example shown in Figure 17 of the electrical equipment design support system 1 of the second embodiment, the power consumption calculation unit 12A calculates the time-of-day power consumption (calculation item) when all actual installed load equipment (first and second actual installed load equipment) connected to the electrical equipment to be designed is in operation by stacking the load-specific power consumption graph A3A of the first actual installed load equipment and the load-specific power consumption graph A3B of the second actual installed load equipment. In other words, the power consumption calculation unit 12A creates a total load power consumption graph A4 (=A3A+A3B) by stacking the load-specific power consumption graph A3A of the first actual installed load equipment and the load-specific power consumption graph A3B of the second actual installed load equipment. Furthermore, the power consumption calculation unit 12A calculates the daily power consumption A5 (calculation item) of all actual installed load equipment (first actual installed load equipment and second actual installed load equipment) connected to the electrical equipment targeted for design support by summing up the power consumption for all time periods (1 o'clock to 24 o'clock) included in the total load power consumption graph A4.

[0084] As described above, in the example shown in Figure 16 of the electrical equipment design support system 1 of the second embodiment, the power peak value calculation unit 12BC calculates the peak value of the total load power consumption graph A4 (in the example shown in Figure 17 of the electrical equipment design support system 1 of the second embodiment, the values ​​on the vertical axis at 11:00 and 16:00) as the "power peak value BC" (calculation item). On the other hand, in the electrical equipment design support system 1 of the third embodiment, the power peak value calculation unit 12BC calculates the load control applied power peak value as a calculation item, which is the peak value of the total load power consumption graph A4 when load control that reduces the transformer capacity DE3 is applied to the first and second actual installed load equipment connected to the electrical equipment to be supported in design.

[0085] In the first example of the electrical equipment design support system 1 of the third embodiment, the power peak value calculation unit 12BC calculates the load control applied power peak value, which is the peak value of the total load power consumption graph A4 when load control that reduces the transformer capacity DE3 by peak cutting as shown in Figure 10 is applied to the first and second actual installed load equipment connected to the electrical equipment to be supported in design, as a calculation item. In the second example of the electrical equipment design support system 1 of the third embodiment, the power peak value calculation unit 12BC calculates the load control applied power peak value, which is the peak value of the total load power consumption graph A4 when load control that reduces the transformer capacity DE3 by peak shifting without using a battery as shown in Figure 11 is applied to the first and second actual installed load equipment connected to the electrical equipment to be supported in design, as a calculation item. In the third example of the electrical equipment design support system 1 of the third embodiment, the power peak value calculation unit 12BC calculates the load control applied power peak value, which is the peak value of the total load power consumption graph A4 when load control that reduces the transformer capacity DE3 by peak shifting using a storage battery as shown in Figure 12 is applied to the first and second actual installed load equipment connected to the electrical equipment to be supported in design, as a calculation item. In the fourth example of the electrical equipment design support system 1 of the third embodiment, the power peak value calculation unit 12BC calculates the load control applied power peak value, which is the peak value of the total load power consumption graph A4 when the energy-saving control shown in Figure 13 is applied to the first and second actual installed load equipment connected to the electrical equipment to be supported in design, as a load control to reduce the transformer capacity DE3.

[0086] In the electrical equipment design support system 1 of the third embodiment, the transformer capacity calculation unit 12DE calculates the transformer capacity DE3 (calculation item) based on the power peak value BC calculated by the power peak value calculation unit 12BC (specifically, the peak value of the total load power consumption graph A4 when load control that reduces the transformer capacity DE3 is applied to the first and second actual installed load equipment connected to the electrical equipment to be supported in design), the margin rate DE1 for calculating the transformer capacity DE3, the power factor DE2 for calculating the transformer capacity DE3, and, for example, the equation (11) described above.

[0087] <Fourth Embodiment> A fourth embodiment of the electrical equipment design support system, electrical equipment design support method, and program of the present invention will be described below. The electrical equipment design support system 1 of the fourth embodiment is configured in the same way as the electrical equipment design support system 1 of the first to third embodiments described above, except for the points described later. Therefore, the electrical equipment design support system 1 of the fourth embodiment can achieve the same effects as the electrical equipment design support system 1 of the first to third embodiments described above, except for the points described later.

[0088] The electrical equipment design support system 1 of the first to third embodiments described above is located, for example, inside a server device managed by a business operator providing electrical equipment design support services. On the other hand, the electrical equipment design support system 1 of the fourth embodiment is composed of terminal devices such as a personal computer or smartphone used by the user of the electrical equipment design support system 1 (for example, an electrical equipment designer).

[0089] Although embodiments for carrying out the present invention have been described above using examples, the present invention is not limited in any way to these embodiments, and various modifications and substitutions can be made without departing from the spirit of the invention. The configurations described in each of the embodiments and examples above may be combined.

[0090] Furthermore, the functions of each part of the electrical equipment design support system 1 in the above-described embodiment may also be realized by recording a program for realizing these functions on a computer-readable recording medium, loading the program recorded on this recording medium into a computer system, and executing it. The term "computer system" here includes hardware such as an operating system and peripheral devices. Furthermore, "computer-readable recording media" refers to portable media such as flexible disks, magneto-optical disks, ROMs, and CD-ROMs, as well as storage units such as hard disks built into computer systems. In addition, "computer-readable recording media" may also include those that dynamically hold programs for a short period of time, such as communication lines used when transmitting programs over networks such as the Internet or communication lines such as telephone lines, and those that hold programs for a certain period of time, such as volatile memory inside computer systems that act as servers or clients in such cases. Moreover, the above-mentioned programs may be for the purpose of realizing some of the functions described above, and may also be programs that can realize the aforementioned functions in combination with programs already recorded in the computer system. [Explanation of Symbols]

[0091] 1...Electrical equipment design support system, 11...Acquisition unit, 12...Calculation unit, 12A...Power consumption calculation unit, 12B...Lighting load power peak value calculation unit, 12C...Power load power peak value calculation unit, 12D...Transformer capacity calculation unit for lighting load equipment, 12E...Transformer capacity calculation unit for power load equipment, 12F...Cubicle power receiving capacity calculation unit, 12G...Main capacity calculation unit for lighting panel, 12H...Main capacity calculation unit for power panel, 12I...Transformer weight calculation unit, 12J...Cubicle size calculation unit, 12K...Cubicle weight calculation unit, 12L...First wire cost calculation unit, 12M...Second wire cost calculation unit, 12N...Running cost calculation unit, 12P...Running cost reduction effect calculation unit

Claims

1. An electrical equipment design support system that assists in the design of electrical equipment, An acquisition unit that acquires information used in the design of the aforementioned electrical equipment, The system comprises a calculation unit that calculates a calculation item from the information acquired by the acquisition unit, The information acquired by the acquisition unit includes: The data includes at least sample data that shows the amount of electricity used during different time periods when a specified load equipment is in operation. The calculation unit described above, A power consumption calculation unit that calculates at least the power consumption by time of day when the actual installed load equipment is in operation as the calculation item, based at least on the sample data and a coefficient that shows the correspondence between the power consumption by time of day when the predetermined load equipment corresponding to the sample data is in operation and the power consumption by time of day when the actual installed load equipment, which is the load equipment connected to the electrical equipment that is the subject of design support by the electrical equipment design support system, is in operation, A power peak value calculation unit calculates the peak power consumption values ​​for each time period when the actual installed load equipment is in operation, which is calculated by the power consumption calculation unit. The system includes a transformer capacity calculation unit that calculates the transformer capacity for the actual installed load equipment based at least on the peak values ​​of power consumption by time of day when the actual installed load equipment is in operation, as calculated by the power peak value calculation unit. Electrical equipment design support system.

2. The power peak value calculation unit calculates the load control applied power peak value, which is the peak value of power consumption by time of day when the load control that reduces the transformer capacity for the actual installed load equipment calculated by the transformer capacity calculation unit is applied to the actual installed load equipment connected to the electrical equipment that is the subject of design support by the electrical equipment design support system and the actual installed load equipment is in operation, as the calculation item. The transformer capacity calculation unit calculates the transformer capacity for the actual installed load equipment based on the load control applicable power peak value calculated by at least the power peak value calculation unit. The electrical equipment design support system according to claim 1.

3. The information acquired by the acquisition unit further includes information indicating the unit price of electricity usage, which is the unit price of electricity used by the actual installed load equipment for each time period. The calculation unit described above, A running cost calculation unit calculates the running cost when the actual installed load equipment is in operation, based at least on the time-of-day power consumption when the actual installed load equipment is in operation, calculated by the power consumption calculation unit, as the calculation item. It includes a unit for calculating the running cost reduction effect, The aforementioned running cost calculation unit, The load control that reduces the transformer capacity for the actual installed load equipment calculated by the transformer capacity calculation unit is not applied to the actual installed load equipment, which is the running cost when load control is not applied to the actual installed load equipment, and The load control applied running cost, which is the running cost when the load control that reduces the transformer capacity for the actual installed load equipment, calculated by the transformer capacity calculation unit, is applied to the actual installed load equipment, is calculated as the calculation item. The aforementioned running cost reduction effect calculation unit is: Based on the running cost without load control and the running cost with load control calculated by the aforementioned running cost calculation unit, the running cost reduction effect is calculated as the aforementioned calculation item. The electrical equipment design support system according to claim 2.

4. The running cost calculation unit calculates the running cost when peak cut control is applied to the actual installed load equipment, as the load control application running cost. The electrical equipment design support system according to claim 3.

5. The running cost calculation unit calculates the running cost when peak shift control without a battery is applied to the actual installed load equipment as the load control application running cost, In the peak shift control that does not use the aforementioned battery, Some of the multiple actual load equipment that were operating during peak hours, when the power consumption of multiple actual load equipment was greater than a predetermined value, It becomes impossible to operate during the aforementioned peak hours. The equipment is operated during off-peak hours when the amount of electricity used by multiple of the actual installed load devices is less than or equal to the predetermined value. The electrical equipment design support system according to claim 3.

6. The running cost calculation unit calculates the running cost when peak shift control using a storage battery is applied to the actual installed load equipment as the load control application running cost, In the peak shift control using the aforementioned battery, During off-peak hours, when the amount of electricity used by multiple actual installed load equipment is less than a predetermined value, the battery is charged. The power charged to the battery during the off-peak hours is discharged during peak hours, which are the times when the power consumption of multiple actual installed load equipment is likely to exceed a predetermined value, and used by the multiple actual installed load equipment. The electrical equipment design support system according to claim 3.

7. The running cost calculation unit calculates the running cost when energy-saving control is applied to the actual installed load equipment, as the load control application running cost. The electrical equipment design support system according to claim 3.

8. The running cost calculation unit determines the load control application running cost as follows: One of the following is applied to the lighting load equipment connected to the aforementioned electrical equipment: peak cut control, peak shift control without using batteries, peak shift control with batteries, and energy saving control. The running cost is calculated when one of the following is applied to the power load equipment connected to the electrical equipment: peak cut control, peak shift control without using batteries, peak shift control with batteries, and energy saving control. The electrical equipment design support system according to claim 3.

9. The aforementioned sample data includes sample data for lighting loads and sample data for power loads. The aforementioned power consumption calculation unit is: Based at least on the aforementioned sample lighting load data and a lighting load coefficient that shows the correspondence between the time-of-day power consumption when the lighting load equipment corresponding to the sample lighting load data is in operation and the time-of-day power consumption when the lighting load equipment connected to the electrical equipment is in operation, the time-of-day power consumption of the lighting load when the lighting load equipment connected to the electrical equipment is in operation is calculated, The power load sample data and power load coefficients that show the correspondence between the power consumption by time of day when the power load equipment connected to the electrical equipment is in operation are used to calculate the power load by time of day when the power load equipment connected to the electrical equipment is in operation. The electrical equipment design support system according to claim 1.

10. The calculation unit described above, The initial costs of at least the cubicle, lighting panel, and power panel are calculated when load control is applied to reduce the transformer capacity for the actual installed load equipment calculated by the transformer capacity calculation unit, and when load control is not applied to reduce the transformer capacity for the actual installed load equipment calculated by the transformer capacity calculation unit. The initial cost reduction effect is calculated as the difference between the initial cost of at least the cubicle, lighting panel, and power panel when load control to reduce the transformer capacity for the actual installed load equipment, as calculated by the transformer capacity calculation unit, is not applied, and the initial cost of at least the cubicle, lighting panel, and power panel when load control to reduce the transformer capacity for the actual installed load equipment, as calculated by the transformer capacity calculation unit, is applied. The electrical equipment design support system according to claim 2.

11. An electrical equipment design support method for an electrical equipment design support system that assists in the design of electrical equipment, An acquisition step to acquire information used in the design of the aforementioned electrical equipment, The system comprises a calculation step which calculates a calculation item from the information acquired in the acquisition step, The information obtained in the aforementioned acquisition step includes: The data includes at least sample data that shows the amount of electricity used during different time periods when a specified load equipment is in operation. The calculation step includes: A power consumption calculation step in which, based at least the sample data and a coefficient showing the correspondence between the time-of-day power consumption when the predetermined load equipment corresponding to the sample data is in operation and the time-of-day power consumption when the actual installed load equipment, which is the load equipment connected to the electrical equipment that is the subject of design support by the electrical equipment design support system, is in operation, at least calculates the time-of-day power consumption when the actual installed load equipment is in operation as the calculation item; A power peak value calculation step calculates the peak power consumption values ​​for each time period when the actual installed load equipment is in operation, which was calculated in the power consumption calculation step. The process includes a transformer capacity calculation step which calculates the transformer capacity for the actual installed load equipment based at least on the peak values ​​of electricity consumption by time of day when the actual installed load equipment is in operation, as calculated in the power peak value calculation step, Methods for supporting the design of electrical equipment.

12. On the computer, The acquisition step for obtaining information used in the design of electrical equipment, A program for executing a calculation step which calculates a calculation item from the information acquired in the acquisition step, The information obtained in the aforementioned acquisition step includes: The data includes at least sample data that shows the amount of electricity used during different time periods when a specified load equipment is in operation. The calculation step includes: A power consumption calculation step in which, based at least the sample data and a coefficient showing the correspondence between the time-of-day power consumption when the predetermined load equipment corresponding to the sample data is in operation and the time-of-day power consumption when the actual installed load equipment, which is the load equipment connected to the electrical equipment that is the subject of design support by the electrical equipment design support system, is in operation, at least calculates the time-of-day power consumption when the actual installed load equipment is in operation as the calculation item, A power peak value calculation step calculates the peak power consumption values ​​for each time period when the actual installed load equipment is in operation, which was calculated in the power consumption calculation step. The process includes a transformer capacity calculation step which calculates the transformer capacity for the actual installed load equipment based at least on the peak values ​​of electricity consumption by time of day when the actual installed load equipment is in operation, as calculated in the power peak value calculation step, program.

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