Novel comprehensive distribution box for transformer area electric energy management

Abstract

The utility model relates to the technical field of low-voltage comprehensive distribution boxes, and discloses a novel transformer area electric energy management comprehensive distribution box, which comprises a fusing type isolation knife, the fusing type isolation knife is arranged at the central position in the comprehensive distribution box, and a metering junction box is arranged on the left side of the fusing type isolation knife. An intelligent electric meter is installed at the upper end of the metering junction box, three parallel power units are installed on the right side of the fusing type isolation knife, and a series transformer is connected below the parallel power units. The novel transformer area electric energy management comprehensive distribution box provided by the utility model has a voltage stabilization function, can stabilize the output voltage when a main circuit works, can stabilize the voltage within + / -10%, enables the power supply voltage at the load side to meet the voltage qualified rate requirement, guarantees the safety of electric equipment, and improves the power supply efficiency. The three-phase imbalance current treatment function of the comprehensive distribution box can solve the problems of three-phase current imbalance and three-phase voltage imbalance of the distribution transformer.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated distribution boxes, in particular to a new integrated distribution box for power management in a substation. Background Art

[0002] The integrated distribution box in the substation is one of the important equipment in the power system. It is generally installed at the end of the low-voltage distribution line. Its main function is to distribute the electric energy from the distribution line to each user, and at the same time complete the functions of electric energy metering, protection, monitoring and control. The integrated distribution box in the substation plays an important role in the power system, and its role cannot be ignored. Only by strengthening the management and maintenance of the integrated distribution box in the substation can the power supply level and service quality of the power system be effectively improved to meet the user's demand for electric energy.

[0003] However, due to the use of a large number of single-phase loads and chaotic management of load distribution in the existing substation integrated control box, the three-phase unbalanced current of the distribution transformer in the integrated distribution box will reach more than 20%-30% of the load current. The unbalanced component will not only cause voltage instability, but also cause losses in the line, directly causing the distribution transformer to overload or even burn out. Therefore, there is an urgent need for a new type of substation power management integrated distribution box to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a new integrated distribution box for power management in an area, so as to solve the technical problems of the existing new integrated distribution box for power management in an area proposed in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A new type of integrated distribution box for power management in a substation, including a fusible isolating knife, the fusible isolating knife is installed at the center of the integrated distribution box, and a metering junction box is arranged on the left side of the fusible isolating knife, a smart meter is installed on the upper end of the metering junction box, three parallel power units are installed on the right side of the fusible isolating knife, and a series transformer is connected below the parallel power unit, the smart capacitor bank is located on the right side of the series transformer, a substation smart fusion terminal is fixed below the metering junction box, and a smart meter is installed on the rear side of the integrated distribution box. There is a parallel power unit busbar, and a circuit breaker is arranged on the right side of the parallel power unit busbar, and a fuse is fixedly installed on the right side of the circuit breaker, and a surge protector is arranged below the fuse, a bottom channel steel support assembly is arranged below the surge protector, and an intelligent capacitor group is connected to the leftmost side of the bottom channel steel support assembly, a lifting angle iron is welded on the top of the integrated distribution box, and a heat dissipation and ventilation system is provided on its side, an upper side incoming line elbow is installed on the upper end of the other side of the integrated distribution box, and a lower side outgoing line elbow is installed on the left side of the lower end of the upper side incoming line elbow.

[0007] Preferably, the length and width of the new integrated distribution box for power management in substations are 1600*850mm.

[0008] Preferably, two groups of the side lower outlet elbows are provided.

[0009] Preferably, lifting screw assemblies are installed on both sides of the top of the integrated distribution box.

[0010] Preferably, the lower end of the heat dissipation and ventilation system is connected to an external grounding, and two groups of external groundings are provided and are respectively installed on the left and right sides of the new type of integrated distribution box for power management in the substation.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the new integrated distribution box for power management in the substation has a voltage stabilization function, which can stabilize the output voltage when the main line is working, and can stabilize the voltage within ±10%, so that the power supply voltage on the load side meets the voltage qualification rate requirements, while ensuring the safety of electrical equipment. The three-phase unbalanced current management function of the integrated distribution box can solve the three-phase current imbalance problem and the three-phase voltage imbalance problem of the distribution transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 This is a front view of the utility model of the integrated distribution box for power management in the substation without the door;

[0014] Figure 2It is a front view of the utility model of the integrated distribution box for power management in the substation area;

[0015] Figure 3 It is a right view of the utility model of the integrated distribution box for power management in the substation area;

[0016] Figure 4 This is a rear view of the utility model of the integrated power distribution box for power management in the substation area without the door;

[0017] Figure 5 It is a rear view of the utility model integrated distribution box for power management in the substation area;

[0018] Figure 6 It is a left view of the utility model of the integrated distribution box for power management in the substation area;

[0019] Figure 7 It is a top view of the integrated distribution box for power management in the utility model;

[0020] In the figure: 1. Lifting angle iron; 2. Lifting screw assembly; 3. Heat dissipation and ventilation system; 4. External grounding; 5. Upper side incoming line elbow; 6. Lower side outgoing line elbow; 7. Fuse isolating knife; 8. Series transformer; 9. Parallel power unit; 10. Intelligent capacitor group; 11. Parallel power unit busbar; 12. Fuse; 13. Surge protector; 14. Circuit breaker; 15. Bottom channel steel support assembly; 16. Smart meter; 17. Metering junction box; 18. Substation intelligent fusion terminal. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The different types of section lines in the drawings in the embodiments of the utility model are not marked according to the national standard, nor are there any requirements for the materials of the components, but are used to distinguish the cross-sectional views of the components in the drawings.

[0022] See also Figure 1-7A new type of integrated power distribution box for power management in a substation, including a fuse-type isolating knife 7, which is installed at the center of the integrated distribution box, and a metering junction box 17 is arranged on the left side of the fuse-type isolating knife 7, and a smart meter 16 is installed on the upper end of the metering junction box 17, and three parallel power units 9 are installed on the right side of the fuse-type isolating knife 7, and a series transformer 8 is connected below the parallel power unit 9, and a smart capacitor bank 10 is located on the right side of the series transformer 8, and a substation smart fusion terminal 18 is fixed below the metering junction box 17, and a parallel power unit 9 is installed on the rear side of the inside of the integrated distribution box. A power unit bus 11, and a circuit breaker 14 is arranged on the right side of the parallel power unit bus 11, and a fuse 12 is fixedly installed on the right side of the circuit breaker 14, and a surge protector 13 is arranged below the fuse 12, a bottom channel steel support assembly 15 is arranged below the surge protector 13, and an intelligent capacitor group 10 is connected to the leftmost side of the bottom channel steel support assembly 15, a lifting angle iron 1 is welded on the top of the integrated distribution box, and a heat dissipation and ventilation system 3 is opened on its side, and a side upper incoming line elbow 5 is installed on the upper end of the other side of the integrated distribution box, and a side lower outgoing line elbow 6 is installed on the left side of the lower end of the side upper incoming line elbow 5.

[0023] Among them, the length and width of the new substation power management integrated distribution box are 1600*850mm.

[0024] Among them, two groups of side lower outlet elbows 6 are provided.

[0025] Among them, hanging screw rod assemblies 2 are installed on both sides of the top of the integrated distribution box.

[0026] Among them, the lower end of the heat dissipation and ventilation system 3 is connected to an external grounding 4, and two groups of external grounding 4 are provided, and are respectively installed on the left and right sides of the new type of integrated distribution box for power management in the substation.

[0027] The working principle and use process of the utility model: the integrated distribution box is internally integrated with a fuse-type isolating knife 7, a series transformer 8, a parallel power unit 9, an intelligent capacitor bank 10, a parallel power unit bus 11, a fuse 12, a surge protector 13, a circuit breaker 14, an intelligent meter 16, a metering junction box 17, and an area intelligent fusion terminal 18;

[0028] The fusible isolating knife 7 can be used to realize the isolation and fusing protection of the circuit of the new integrated distribution box for power management in the substation. In the working state, the fusible isolating switch can completely isolate the electrical equipment and the power supply, thereby effectively preventing the electrical equipment from being misoperated due to repair or maintenance operations, and ensuring the safety of electrical equipment and personnel. The series transformer 8 can improve the voltage stability. When the voltage fluctuates greatly or decreases to a certain level, the series transformer can be automatically put into operation to improve the voltage stability and protect the safe operation of the electrical equipment. The parallel power unit 9 can increase the output power by connecting in parallel, and has a voltage stabilizing function. When the main line is working, the output voltage can be stabilized, and the voltage can be stabilized within ±10%, so that the power supply voltage on the load side meets the voltage qualification rate requirements, and at the same time ensures the safety of electrical equipment. In combination with the fuse 12, the surge protector 13, and the circuit breaker 14, the three-phase unbalanced current management function of the integrated distribution box can solve the three-phase current imbalance problem and the three-phase voltage imbalance problem of the distribution transformer;

[0029] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0030] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A new integrated distribution box for power management in a substation, comprising a fuse-type isolating knife (7), characterized in that: The fuse-type isolating knife (7) is installed at the center position of the integrated distribution box, and a metering junction box (17) is arranged on the left side of the fuse-type isolating knife (7), and a smart meter (16) is installed on the upper end of the metering junction box (17). Three parallel power units (9) are installed on the right side of the fuse-type isolating knife (7), and a series transformer (8) is connected below the parallel power unit (9). The smart capacitor group (10) is located on the right side of the series transformer (8). A substation smart fusion terminal (18) is fixed below the metering junction box (17). A parallel power unit busbar (11) is installed on the rear side of the integrated distribution box, and the parallel power unit busbar (11) is connected to the parallel power unit (9). A circuit breaker (14) is arranged at the right position of the unit busbar (11), and a fuse (12) is fixedly installed on the right side of the circuit breaker (14), and a surge protector (13) is arranged below the fuse (12), and a bottom channel steel support assembly (15) is arranged below the surge protector (13), and an intelligent capacitor group (10) is connected to the leftmost side of the bottom channel steel support assembly (15), a hoisting angle iron (1) is welded on the top of the integrated distribution box, and a heat dissipation ventilation system (3) is provided on the side thereof, and an upper side incoming line elbow (5) is installed on the upper end of the other side of the integrated distribution box, and a lower side outgoing line elbow (6) is installed on the left side of the lower end of the upper side incoming line elbow (5).

2. According to claim 1, a new integrated distribution box for power management in substations is characterized by: The length and width of this new type of integrated distribution box for power management in substations are 1600*850mm.

3. According to the new integrated distribution box for power management in substations according to claim 1, it is characterized by: A total of two groups of the side lower outlet elbows (6) are provided.

4. According to the new integrated distribution box for power management in substations according to claim 1, it is characterized by: Lifting screw rod assemblies (2) are installed on both sides of the top of the integrated distribution box.

5. According to the new type of integrated distribution box for power management in substations according to claim 1, it is characterized by: The lower end of the heat dissipation and ventilation system (3) is connected to an external grounding (4), and two groups of the external grounding (4) are provided and are respectively installed on the left and right sides of the new type of integrated power distribution box for power management in the substation.

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