A temporary electrical power system

Abstract

The utility model discloses a kind of temporary power system, including the opening and closing office, box transformer station and distribution box connected in turn, server unit is equipped in the opening and closing office or box transformer station, the server unit is connected by wireless network module and mobile terminal or background monitoring center, the server unit is connected with the information acquisition unit of opening and closing office and / or box transformer station and / or distribution box to upload the information of remote monitoring, the server unit is also connected with the control end of box transformer station's box transformer measurement and control device or opening and closing office's microcomputer protection device, the following issue remote control instruction.The utility model realizes the remote monitoring, remote control, remote management function of temporary power system.

Description

Technical Field

[0001] This utility model relates to electrical engineering technology, and in particular to a temporary power supply system. Background Technology

[0002] Temporary power systems provide power sources and lighting for electrical equipment used temporarily at construction sites, including temporary switch stations, transformer substations, and distribution boxes.

[0003] To ensure the safety of temporary power supply, traditional temporary power supply systems install transformer substation monitoring and control devices or microcomputer protection devices in switchgear stations, and also install corresponding multi-function meters for data collection. However, these devices can only be viewed locally and lack remote control capabilities. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in view of the technical problems existing in the prior art, this utility model provides a temporary power supply system that realizes remote monitoring, remote control and remote management functions, and can also effectively prevent accidents from occurring.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0006] A temporary power supply system includes a switching station, a transformer substation, and a distribution box connected in sequence. A server unit is installed in the switching station or transformer substation. The server unit is connected to a mobile terminal or a back-end monitoring center via a wireless network module. The server unit is connected to the information acquisition unit of the switching station and / or transformer substation and / or distribution box to upload remote monitoring information. The server unit is also connected to the control terminal of the transformer substation's monitoring and control device or the switching station's microcomputer protection device to issue remote control commands.

[0007] Furthermore, it also includes a field monitoring unit and an alarm unit that correspond one-to-one with the transformer substation. The data output terminal of the field monitoring unit and the control terminal of the alarm unit are respectively connected to the server unit, so that the server unit can upload the field monitoring video and issue the enable command of the alarm unit.

[0008] Furthermore, the data output terminal of the field monitoring unit is connected to the server unit through the transformer substation monitoring and control device, or the data output terminal of the field monitoring unit is connected to the server unit through an optical fiber communication module.

[0009] Furthermore, the switching station, the transformer substation, and the distribution box are all equipped with a carrier communication module or a wireless communication module. The information acquisition unit of the distribution box is connected to the server unit in sequence through the carrier communication module or wireless communication module of the distribution box, the transformer substation, and the switching station.

[0010] Furthermore, both the switching station and the transformer substation are equipped with fiber optic communication modules. The information acquisition unit of the transformer substation is connected to the server unit in sequence through the transformer substation monitoring and control device, the transformer substation and the switching station's carrier communication module, wireless communication module or fiber optic communication module.

[0011] Furthermore, the cabinet doors of the switching station, transformer substation, and distribution box are all equipped with electromagnetic locks as cabinet door switches, and the control terminal of the electromagnetic lock is connected to the server unit.

[0012] Furthermore, the information acquisition unit includes one or more of the following: a multi-function meter, an electricity meter, and a temperature and humidity controller.

[0013] Furthermore, the information acquisition unit of the distribution box includes a data acquisition unit, and the signal acquisition terminals of the circuit breaker and / or disconnector of the distribution box are connected to the server unit through the data acquisition unit.

[0014] Furthermore, the signal acquisition terminals of the circuit breakers and / or disconnect switches of the transformer substation are connected to the transformer substation monitoring and control device and the server unit.

[0015] Furthermore, a firewall unit is also provided between the server unit and the wireless network module.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This invention enables remote monitoring of temporary power supply systems by setting up a server unit in a switchgear or transformer substation. The server unit is connected to the multi-function meter of the switchgear or transformer substation and is connected to a mobile terminal or a background monitoring center via a wireless network module. The server unit is also connected to the control terminal of the transformer substation measurement and control device or microcomputer protection device to enable remote control of the temporary power supply system.

[0018] This utility model sets up a field monitoring unit and an alarm unit corresponding to the transformer substation. The data output section of the field monitoring unit and the control terminal of the alarm unit are connected to the server respectively, so that the manager can observe the on-site construction situation through a mobile terminal or the background monitoring center, and promptly alarm for non-compliance, so as to avoid human-caused accidents and realize remote management of the temporary power supply system. Attached Figure Description

[0019] Figure 1 This is a network topology diagram of an embodiment of the present invention.

[0020] Figure 2 This is a block diagram showing the connection relationship of the main functional modules in an embodiment of this utility model.

[0021] Figure 3 This is a network topology diagram of the transformer substation according to an embodiment of the present invention.

[0022] Figure 4 This is a network topology diagram of the distribution box in an embodiment of the present utility model.

[0023] Legend: 1-Switch station, 2-Package substation, 3-Distribution box, 4-Server unit, 5-Wireless network module, 6-Mobile terminal, 7-Back-end monitoring center, 8-Field monitoring unit, 9-Firewall unit. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0025] Before introducing specific embodiments of this utility model, the relevant concepts or terms will be explained.

[0026] Switching stations, also known as switching yards, are power supply and distribution facilities used to receive and distribute electricity. They are typically used to address the problem of limited incoming and outgoing line bays or restricted incoming and outgoing line corridors in substations, and play a role in providing power support in the region.

[0027] Prefab substation: A prefab substation is a type of power distribution equipment that combines high-voltage switchgear, distribution transformers, and low-voltage power distribution devices according to a certain wiring scheme. It is mainly used to step down high-voltage electricity to low-voltage electricity and is suitable for temporary power supply, construction sites, residential areas, factories and enterprises, etc.

[0028] Distribution box: A distribution box is a device used to distribute electricity in a temporary power system.

[0029] Prefabricated substation monitoring and control device: A prefabricated substation monitoring and control device is a type of equipment used in substations within a power system. It is used to monitor, measure, and control important parameters such as voltage, current, and power factor in the power system. It can monitor the operating status of the power system in real time and take corresponding control measures.

[0030] Microcomputer protection devices: Microcomputer protection devices can monitor the operating status of the power system in real time, including analog quantities such as voltage, current, power, and frequency, as well as switch signals such as circuit breaker position and energy storage status. They provide comprehensive protection for various equipment in the power system (such as lines, transformers, motors, etc.). In switchgear, microcomputer protection devices not only provide reliable protection functions, but also improve the intelligence level of the power system through monitoring, control, and communication functions.

[0031] Example

[0032] Traditional temporary power systems cannot achieve remote monitoring, remote control, and remote management. Fault location is difficult and troubleshooting is challenging. They cannot proactively manage critical lines that cannot be shut down for tasks such as grouting, thus failing to prevent accidental power outages. Furthermore, they only offer mechanical five-proof interlocking for switchgear, with some features missing. In situations with numerous distribution cabinets / boxes on-site, many key strings are generated, making key storage and coordination difficult. Temporary power safety and management depend entirely on the technical and managerial skills of on-site personnel. Electrical construction management personnel have varying skill levels and unclear understanding of electrical safety, resulting in high risks and a heavy workload for temporary power management and coordination.

[0033] This embodiment proposes a temporary power supply system to solve the above problems, such as... Figure 1 As shown, the system includes a switching station 1, a transformer substation 2, and a distribution box 3 connected in sequence. A server unit 4 is provided in either the switching station 1 or the transformer substation 2. In this embodiment, the server unit can be a personal computer (PC) or a microprocessor (MCU). The server unit 4 is connected to a mobile terminal 6 or a back-end monitoring center 7 via a wireless network module 5. Figure 2 As shown, server unit 4 is connected to information acquisition unit 101 of switch station 1 and / or transformer substation 2 and / or distribution box 3 to upload information to mobile terminal 6 or background monitoring center 7 to achieve remote monitoring. Server unit 4 is also connected to the control terminal of transformer substation 2's transformer substation control device or switch station 1's microcomputer protection device to forward instructions issued by mobile terminal 6 or background monitoring center 7 to achieve remote control.

[0034] With the above structure, in this embodiment, a server unit 4 is set in the switch station 1 or the box-type substation 2 according to the actual situation. The data of the switch station 1 and / or the box-type substation 2 and / or the distribution box 3 are remotely transmitted to the mobile terminal 6 or the background monitoring center 7 through the server unit 4, opening up the data upload and management command transmission channel, so that the manager can process and analyze the uploaded data in a timely manner, thereby realizing functions such as remote real-time data monitoring, remote control, and data anomaly alarm.

[0035] like Figure 1 As shown, the temporary power supply system in this embodiment also includes a field monitoring unit 8 and an alarm unit corresponding to the transformer substation 2. The data output terminal of the field monitoring unit 8 and the control terminal of the alarm unit are respectively connected to the server unit 4, so that the server unit 4 can upload field monitoring videos to the mobile terminal 6 or the background monitoring center 7, and can also send enable commands from the mobile terminal 6 or the background monitoring center 7 to the alarm unit to realize alarms. Through remote management, it assists on-site technicians and realizes functions such as video monitoring and intrusion alarm.

[0036] In another specific embodiment, the server unit 4 can also be equipped with video analysis software to perform real-time analysis of on-site monitoring video, identify sources of danger, and send an enable signal to the alarm unit to issue an alarm, thereby realizing functions such as video monitoring, intrusion alarm, early warning, identification and reminder of irregular behavior.

[0037] In this embodiment, the cabinet doors of the substation 1, transformer substation 2, and distribution box 3 are all equipped with electromagnetic locks for door opening and closing. The control terminals of the electromagnetic locks are connected to the server unit 4, allowing remote control of the cabinet doors via a mobile terminal 6 or the back-end monitoring center 7. This ensures that the cabinet doors of the substation 1, transformer substation 2, and distribution box 3 remain locked unless the five-proof logic is violated, preventing human error and achieving remote authorized door opening and five-proof functions. It should be noted that the electromagnetic locks in this embodiment can be those that support both key unlocking and electronic unlocking, such as the JSY-I type mechanical program key electromagnetic control lock or the DSN-BMY(Z) handle-type electromagnetic lock. This allows for remote authorized door opening while retaining the mechanical key's operating hole as a backup unlocking method.

[0038] In another specific embodiment, the server unit 4 may also have built-in five-prevention logic. If the data uploaded by the information acquisition unit 101 of the switch station 1 and / or the transformer substation 2 and / or the distribution box 3 does not conform to the five-prevention logic, a locking command (such as a low level) is sent to the electromagnetic lock of the switch station 1 and / or the transformer substation 2 and / or the distribution box 3 to keep the cabinet door locked and avoid human error.

[0039] In another specific embodiment, server unit 4 can also have a built-in timer program that sends a lockout command (such as a low level) to the cabinet door switches of the critical circuit substation 2 and distribution box 3 within a specified time to lock them out. During the lockout operation, unauthorized personnel cannot operate the system, ensuring reliable power supply for construction.

[0040] In this embodiment, the auxiliary contacts of the circuit breaker and / or disconnector of the transformer substation 2 serve as signal acquisition terminals, connected to the transformer substation monitoring and control device and server unit 4. Furthermore, the signal feedback terminal of the electromagnetic lock of transformer substation 2 is also connected to the transformer substation monitoring and control device and server unit 4. Figure 3 As shown, the transformer substation monitoring and control device acquires the opening and closing signals of the circuit breaker and / or disconnector, the cabinet door opening and closing signals of the electromagnetic lock, and various input signals of the transformer substation 2, and then uploads them to the server unit 4. Similarly, the auxiliary contacts of the circuit breaker and / or disconnector of the distribution box 3 serve as signal acquisition terminals, connected to the server unit 4 through the data acquisition unit 101, and the signal feedback terminal of the electromagnetic lock of the distribution box 3 is also connected to the server unit 4 through the data acquisition unit, such as... Figure 4As shown, the data acquisition unit acquires the opening and closing signals of circuit breakers and / or disconnectors, the cabinet door opening and closing signals of electromagnetic locks, and various input signals of distribution box 3, and then uploads them to server unit 4. This allows managers to remotely monitor the tripping status of circuit breakers and / or disconnectors in each transformer substation 2 and each distribution box 3, as well as the cabinet door opening and closing status. By analyzing the tripping status, fault points can be quickly located, enabling functions such as on-site critical line management, fault alarm, and fault analysis.

[0041] In another specific embodiment, the server unit 4 may also have built-in triggering logic. When the circuit breaker and / or disconnector of the transformer substation 2 and the distribution box 3 trip, an alarm signal is sent to the mobile terminal 6 or the background monitoring center 7, so that the manager can promptly determine the type and location of the accident by using the data collected by the server unit 4 during the accident, and accurately locate the fault point.

[0042] In this embodiment, the information acquisition units 101 of the switch station 1, the transformer substation 2, and the distribution box 3 all include one or more of the following: multi-function meter, electricity meter, and temperature and humidity controller, in order to provide as much detailed data as possible to assist remote managers in understanding the operating status of the temporary power system.

[0043] In this embodiment, the switching station 1, the transformer substation 2, and the distribution box 3 are all equipped with a carrier communication module and a wireless communication module. The wireless communication module can be a physical gateway, such as... Figure 1 As shown. In this embodiment, depending on the actual situation, the information acquisition unit 101 of the distribution box 3 is connected to the server unit 4 sequentially through the carrier communication module or wireless communication module of the distribution box 3, the transformer substation 2, and the switching station 1. For example, in an open environment, the information acquisition unit 101 of the distribution box 3 is connected to the server unit 4 sequentially through the wireless communication module of the distribution box 3, the transformer substation 2, and the switching station 1. In situations where wireless transmission is affected, such as in tunnels, shielded buildings, or areas with poor signal, the information acquisition unit 101 of the distribution box 3 is connected to the server unit 4 sequentially through the carrier communication module of the distribution box 3, the transformer substation 2, and the switching station 1 to achieve data upload via carrier communication.

[0044] In this embodiment, both the switching station 1 and the transformer substation 2 are equipped with fiber optic communication modules, such as... Figure 1 As shown. In this embodiment, depending on the actual situation, the information acquisition unit 101 of the transformer substation 2 is connected to the server unit 4 sequentially through the transformer substation monitoring and control device, the carrier communication module or wireless communication module or optical fiber communication module of the transformer substation 2 and the switching station 1. For example, when the amount of data uploaded is large, the transformer substation monitoring and control device is connected to the server unit 4 sequentially through the optical fiber communication module of the transformer substation 2 and the switching station 1.

[0045] In this embodiment, the field monitoring unit 8 can be a camera. The data output end of the camera is connected to the substation monitoring and control device and the server unit 4. Considering that the amount of data uploaded by the camera is large, the data output end of the camera can also be connected to the server unit 4 in sequence through the optical fiber communication modules of the substation 2 and the switching station 1.

[0046] like Figure 1 As shown in the figure, in this embodiment, a firewall unit 9 is also provided between the server unit 4 and the wireless network module 5, so as to protect the server unit 4 from the threat of external attacks. The firewall unit 9 can be a hardware firewall device from companies such as Fortinet, Huawei, and Cisco.

[0047] In summary, this utility model proposes a temporary power supply system to solve many problems of traditional temporary power supply systems. It employs a combination of carrier communication and wireless communication to achieve data transmission and integration. A server unit 4 is installed in the switchgear 1 or the transformer substation 2 to remotely transmit data from the switchgear 1 and / or the transformer substation 2 and / or the distribution box 3 to a mobile terminal 6 or a back-end monitoring center 7. This enables remote real-time data monitoring, remote control, data anomaly alarms, on-site critical line management, fault alarms, fault analysis, remote authorized cabinet / box door opening, five-proof protection, video surveillance, intrusion alarms, and other functions.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model's technical solution should fall within the protection scope of the present utility model's technical solution.

Claims

1. A temporary power supply system, comprising a switching station (1), a transformer substation (2), and a distribution box (3) connected in sequence, characterized in that, The switch station (1) or the transformer substation (2) is equipped with a server unit (4). The server unit (4) is connected to a mobile terminal (6) or a background monitoring center (7) via a wireless network module (5). The server unit (4) is connected to the information acquisition unit (101) of the switch station (1) and / or the transformer substation (2) and / or the distribution box (3) to upload remote monitoring information. The server unit (4) is also connected to the control terminal of the transformer substation (2) or the microcomputer protection device of the switch station (1) to issue remote control instructions.

2. The temporary power supply system according to claim 1, characterized in that, It also includes a field monitoring unit (8) and an alarm unit that correspond one-to-one with the transformer substation (2). The data output terminal of the field monitoring unit (8) and the control terminal of the alarm unit are respectively connected to the server unit (4), so that the server unit (4) uploads the field monitoring video and sends the alarm unit's enable command.

3. The temporary power supply system according to claim 2, characterized in that, The data output terminal of the field monitoring unit (8) is connected to the server unit (4) through the transformer substation monitoring and control device, or the data output terminal of the field monitoring unit (8) is connected to the server unit (4) through the optical fiber communication module.

4. The temporary power supply system according to claim 1, characterized in that, The switching station (1), the transformer substation (2), and the distribution box (3) are all equipped with a carrier communication module or a wireless communication module. The information acquisition unit (101) of the distribution box (3) is connected to the server unit (4) in sequence through the carrier communication module or wireless communication module of the distribution box (3), the transformer substation (2), and the switching station (1).

5. The temporary power supply system according to claim 4, characterized in that, Both the switch station (1) and the transformer substation (2) are equipped with optical fiber communication modules. The information acquisition unit (101) of the transformer substation (2) is connected to the server unit (4) in sequence through the transformer substation monitoring and control device, the transformer substation (2) and the switch station (1) carrier communication module or wireless communication module or optical fiber communication module.

6. The temporary power supply system according to claim 1, characterized in that, The cabinet doors of the switchgear (1), the transformer substation (2), and the distribution box (3) are all equipped with electromagnetic locks as cabinet door switches, and the control terminal of the electromagnetic lock is connected to the server unit (4).

7. The temporary power supply system according to claim 1, characterized in that, The information acquisition unit (101) includes one or more of the following: a multi-function meter, an electricity meter, and a temperature and humidity controller.

8. The temporary power supply system according to claim 1, characterized in that, The information acquisition unit (101) of the distribution box (3) includes a data acquisition device, and the signal acquisition terminals of the circuit breaker and / or disconnector of the distribution box (3) are connected to the server unit (4) through the data acquisition device.

9. The temporary power supply system according to claim 1, characterized in that, The signal acquisition terminals of the circuit breakers and / or disconnectors of the transformer substation (2) are connected to the transformer substation measurement and control device and the server unit (4).

10. The temporary power supply system according to claim 1, characterized in that, A firewall unit (9) is also provided between the server unit (4) and the wireless network module (5).

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