Switch cabinet control device
By designing a remote one-button control switchgear, and combining multiple detection modules and intelligent controllers, the problems of high maintenance costs and misoperation of switchgear are solved, achieving efficient and safe switchgear operation.
Patent Information
- Application Number
- CN202520026815.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing switchgear control devices have high maintenance costs and are prone to misoperation, affecting power grid safety and equipment safety.
Design a control device that includes a switch cabinet, control components, integrated protection devices, and a dual-function intelligent controller to achieve remote one-button control. Combined with limit switches, cameras, mechanical characteristic testing modules, partial discharge detection modules, and temperature detection modules, it ensures operational accuracy and equipment safety.
It enables remote one-click control of the switch cabinet, reducing labor and maintenance costs, improving operational accuracy and equipment safety, and reducing the risk of misoperation.
Smart Images
Figure CN223843380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment technology, and in particular to a switch cabinet control device. Background Technology
[0002] As the power grid continues to expand, the complexity of equipment operation within substations is increasing daily. However, most substation switching operations still rely on manual methods, which are prone to errors and mishandling, endangering personal and equipment safety, and in severe cases, causing power system collapse. This is inconsistent with the development of the power industry in the information age. Under the new circumstances of increasingly stringent requirements for power grid safety operation, automatic control technology has emerged. It can automatically complete a series of equipment operations and automatically verify whether the equipment operation is in place, ensuring accuracy and thus improving the efficiency of switching operations and reducing the power grid accident rate.
[0003] Currently, most switchgear products can achieve partial intelligence by installing intelligent components, which require individual startup. This necessitates a large number of operators to maintain and use the switchgear, significantly increasing maintenance costs.
[0004] Therefore, it is necessary to provide a new switchgear control device to solve the above-mentioned technical problems. Utility Model Content
[0005] The main purpose of this utility model is to propose a switchgear control device, which aims to improve the technical problem of high maintenance costs in existing switchgear control devices.
[0006] To achieve the above objectives, the switchgear control device proposed in this utility model includes:
[0007] A switch cabinet, which includes circuit breakers, grounding switches, and electrical components;
[0008] Control components;
[0009] A comprehensive protection device, comprising a signal input terminal and multiple signal output terminals, wherein the signal input terminal is signal-connected to the control component;
[0010] A dual-function intelligent controller, wherein the number of dual-function intelligent controllers is less than or equal to the number of signal output terminals, the dual-function intelligent controllers are connected to the signal output terminals, and the dual-function intelligent controllers are used to control the entry and exit of the circuit breaker, the opening and closing of the grounding switch, and the operation of electrical components.
[0011] In one embodiment, the switch cabinet further includes a first limit switch, which is disposed at the operating port of the circuit breaker. The first limit switch is used to monitor whether the circuit breaker is in position when entering or leaving the vehicle. The first limit switch is signal-connected to the integrated protection device.
[0012] In one embodiment, the switch cabinet further includes a second limit switch, which is disposed at the operating hole of the grounding switch. The second limit switch is used to monitor whether the grounding switch is in position, and the second limit switch is signal-connected to the integrated protection device.
[0013] In one embodiment, the switch cabinet further includes a camera, which is signal-connected to the control component.
[0014] In one embodiment, the switch cabinet further includes a mechanical characteristic testing module, which is used to monitor the mechanical performance of the circuit breaker during operation, and the mechanical characteristic testing module is signal-connected to the control component.
[0015] In one embodiment, the switch cabinet further includes a partial discharge detection module, which is used to monitor partial discharge phenomena inside or on the surface of the electrical components, and the partial discharge detection module is signal-connected to the control component.
[0016] In one embodiment, the switch cabinet further includes a temperature detection module for monitoring the temperature change of the circuit breaker, and the temperature detection module is signal-connected to the control component.
[0017] In one embodiment, the switch cabinet control device further includes a laser printer, which is signal-connected to the control component.
[0018] In one embodiment, the switch cabinet further includes a fuse for connecting to electrical components and an external power source.
[0019] In one embodiment, the switch cabinet further includes a surge arrester connected to and grounded to the fuse.
[0020] In the above scheme, the switchgear control device includes a switchgear, control components, an integrated protection device, and a dual-function intelligent controller. The switchgear includes circuit breakers, grounding switches, and electrical components. The integrated protection device includes a signal input terminal and multiple signal output terminals. The signal input terminal is connected to the control components. There are multiple dual-function intelligent controllers, and the number of dual-function intelligent controllers is less than or equal to the number of signal output terminals. The dual-function intelligent controllers are connected to the signal output terminals. The dual-function intelligent controllers are used to control the entry and exit of the circuit breaker, the opening and closing of the grounding switch, and the operation of the electrical components. Specifically, a signal connection is established between the execution unit and control component in the switchgear control device to achieve remote one-button control. When the switchgear needs to be started or stopped, the operator remotely operates the control component. The control component issues action commands according to the pre-set operating steps. The commands are first transmitted to the signal input terminal of the integrated protection device, which then transmits them to each integrated intelligent controller through the signal output terminal. The integrated intelligent controller, based on the commands, performs operations such as circuit breaker entry / exit and grounding switch opening / closing, thereby realizing the operation and shutdown of the switchgear. Multiple switchgears are operated sequentially according to the power outage / restoration sequence. This utility model can realize remote one-button control of switchgear start and stop without the need for on-site personnel, greatly reducing labor costs and thus reducing the operation and maintenance costs of the switchgear. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the structure of an embodiment of the switchgear control device provided by this utility model;
[0023] Figure 2 A partial structural schematic diagram of an embodiment of the switchgear control device provided by this utility model.
[0024] Explanation of icon numbers:
[0025] 100. Switchgear control device; 1. Switchgear; 2. Control components; 3. Integrated protection device; 4. One-in-two intelligent controller; 11. Circuit breaker; 12. Grounding switch; 13. Electrical components; 5. Mechanical characteristic testing module; 6. Partial discharge detection module; 7. Temperature detection module; 8. Camera; 9. Laser printer.
[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0030] Please see Figure 1 and Figure 2This utility model proposes a switchgear control device 100, including a switchgear 1, a control component 2, a comprehensive protection device 3, and a dual-function intelligent controller 4. The switchgear 1 includes a circuit breaker 11, a grounding switch 12, and electrical components 13. The comprehensive protection device 3 includes a signal input terminal and multiple signal output terminals. The signal input terminal is connected to the control component 2. The dual-function intelligent controller 4 is multiple, and the number of dual-function intelligent controllers 4 is less than or equal to the number of signal output terminals. The dual-function intelligent controllers 4 are connected to the signal output terminals. The dual-function intelligent controllers 4 are used to control the entry and exit of the circuit breaker 11, the opening and closing of the grounding switch 12, and the operation of the electrical components 13. Specifically, the execution unit in the switchgear control device 100 establishes a signal connection with the control component 2, thereby realizing remote one-button control. When it is necessary to start or stop the switchgear 1, the operator operates remotely through the control component 2. The control component 2 issues action commands according to the pre-set operating steps. The commands are first transmitted to the signal input terminal of the integrated protection device 3, and then transmitted to each of the integrated intelligent controllers 4 through the signal output terminal. The integrated intelligent controllers 4, according to the commands, realize operations such as the entry and exit of the circuit breaker 11 and the opening and closing of the grounding switch 12, thereby realizing the operation and shutdown of the switchgear 1. Multiple switchgear 1 are operated sequentially according to the power outage and restoration sequence. This embodiment can realize remote one-button control of the start and stop of the switchgear 1 without the need for on-site personnel, which greatly reduces labor costs and thus reduces the operation and maintenance costs of the switchgear 1.
[0031] In one embodiment, the switch cabinet 1 further includes a first limit switch, which is disposed at the operating port of the circuit breaker 11. The first limit switch is used to monitor whether the circuit breaker 11 has reached its designated position when entering or leaving the vehicle. The first limit switch is signal-connected to the integrated protection device 3. A limit switch is an electrical component 13 used to detect the position of a mechanical moving part. It determines whether a device or component has reached a predetermined position through physical contact. When the circuit breaker 11 moves from the test position or isolation position to the working position, the operating lever of the circuit breaker 11 will contact the first limit switch, and the first limit switch will detect whether the circuit breaker 11 has fully entered the working position. If the first limit switch is triggered, it indicates that the circuit breaker 11 has reached its designated position. The integrated protection device 3 will receive a confirmation signal, and then the control component 2 will receive a signal to continue performing subsequent operations; or, when the circuit breaker 11 moves from the working position to the test position or isolation position, the operating lever of the circuit breaker 11 will contact the first limit switch, and the first limit switch will detect whether the circuit breaker 11 has fully moved out of the working position. If the first limit switch is triggered, it indicates that the circuit breaker 11 has been safely moved out, and then the control unit 2 will receive a signal to continue to perform subsequent operations.
[0032] In one embodiment, the switch cabinet 1 further includes a second limit switch, which is disposed at the operating port of the grounding switch 12. The second limit switch is used to monitor whether the grounding switch 12 is in the correct position and is signal-connected to the integrated protection device 3. When the grounding switch 12 performs a closing operation, the operating rod of the grounding switch 12 contacts the second limit switch, which detects whether the grounding switch 12 has been fully closed. If the second limit switch is triggered, it indicates that the grounding switch 12 has been correctly closed, and the control component 2 receives a signal to continue executing subsequent operations. Alternatively, when the grounding switch 12 performs a opening operation, the operating rod of the grounding switch 12 contacts the second limit switch, which detects whether the grounding switch 12 has been fully opened. If the second limit switch is triggered, it indicates that the grounding switch 12 has been safely opened, and the control component 2 receives a signal to continue executing subsequent operations.
[0033] Please see Figure 1 and Figure 2 In one embodiment, the switch cabinet 1 further includes a camera 8, which is signal-connected to the control unit 2. With the camera 8 installed inside the switch cabinet 1, after the control unit 2 controls a certain electrical component 13 in the switch cabinet 1 to operate or shut down, the camera 8 monitors the start-up or shutdown status of that electrical component 13 in the switch cabinet 1. Then, the camera 8 transmits a signal to the control unit 2. If the electrical component 13 has performed its function correctly, the control unit 2 will issue the next instruction according to the operating sequence. The structural configuration of this embodiment ensures the accurate execution of the instructions.
[0034] Please see Figure 1 and Figure 2 To ensure operational reliability, the switchgear control device 100 employs a dual confirmation mechanism. In addition to limit switches, a camera 8 is also installed to monitor the position of the circuit breaker 11 and the grounding switch 12 in real time. The limit switches provide physical position confirmation, while the camera 8 provides secondary visual confirmation, ensuring that each operational step is accurate.
[0035] Please see Figure 1 and Figure 2In one embodiment, the switchgear 1 further includes a mechanical characteristic testing module 5. This module monitors the mechanical performance of the circuit breaker 11 during operation and is connected to the control component 2 via signal connection. Through this connection, the mechanical characteristic testing module 5 collects and analyzes the mechanical action parameters of the circuit breaker 11 in real time, ensuring its normal operation and reliability. The module can accurately measure the closing and opening times of the circuit breaker 11, ensuring it completes the operation within a specified time range. If the operation time is too long or too short, it may indicate a fault or aging in the mechanical components of the circuit breaker 11, and the system will issue an alarm to remind maintenance personnel to inspect and maintain it. The module can also monitor the travel of the circuit breaker 11 contacts in real time, ensuring they move within a specified range. If the travel is too large or too small, it may indicate a problem with the mechanical structure of the circuit breaker 11, such as spring failure or loose connecting rods, and the system will issue an alarm to remind maintenance personnel to adjust or replace them. The mechanical characteristic testing module 5 can monitor the closing and opening speeds of the circuit breaker 11 contacts in real time, ensuring they operate within the specified speed range. Abnormal speeds may indicate a problem with the circuit breaker 11's drive mechanism, such as motor failure or transmission wear. The system will issue an alarm to remind maintenance personnel to inspect and repair the device. The mechanical characteristic testing module 5 can also monitor the number of bounces of the circuit breaker 11 contacts in real time, ensuring they remain within the specified range. Excessive bounces may indicate a problem with the contacts or mechanical structure of the circuit breaker 11. The system will issue an alarm to remind maintenance personnel to perform maintenance or replacement.
[0036] Please see Figure 1 and Figure 2 In one embodiment, the switchgear 1 control also includes a partial discharge detection module 6. The partial discharge detection module 6 is used to monitor partial discharge phenomena inside or on the surface of electrical components 13, and is signal-connected to the control component 2. The partial discharge detection module 6 can monitor the partial discharge situation inside the electrical equipment in real time, capture weak discharge signals, and transmit them to the background system for analysis. By continuously monitoring the frequency, amplitude, and location of partial discharges, potential insulation problems can be detected in advance, preventing the fault from escalating. Based on the analysis of partial discharge data, maintenance personnel can assess the health status of the equipment and determine whether maintenance or replacement is necessary. This helps to achieve predictive maintenance, reduce unnecessary downtime and maintenance costs, and extend the service life of the equipment. By timely detection and handling of partial discharge problems, the occurrence of insulation faults can be effectively prevented, improving the reliability and safety of the entire power distribution system.
[0037] Please see Figure 1 and Figure 2In one embodiment, the switchgear 1 further includes a temperature detection module 7, which monitors the temperature changes of the circuit breaker 11. The temperature detection module 7 is signal-connected to the control component 2. In the design of the intelligent switchgear control device 100, the temperature detection module 7 is mainly used to monitor the temperature changes of the circuit breaker 11 and its key components to ensure the safe operation of the equipment and extend its service life. The temperature detection module 7 not only monitors the circuit breaker 11 itself, but also monitors the temperature of other key electrical components 13. The contacts of the circuit breaker 11 are critical parts for current flow, especially under high current conditions, the contacts will generate a large amount of heat. If the contact temperature is too high, it may lead to poor contact, material aging or melting, and thus cause failure. The temperature detection module 7 can monitor the temperature of the circuit breaker 11 contacts in real time to ensure that it operates within a safe range. When the temperature exceeds a preset threshold, the system will issue an alarm to remind maintenance personnel to take measures to prevent equipment damage or failure due to overheating.
[0038] Please see Figure 1 and Figure 2 In one embodiment, the switchgear control device 100 further includes a laser printer 9, which is signal-connected to the control component 2. The laser printer 9 can print the data obtained by the control component 2, facilitating record keeping.
[0039] In one embodiment, the switch cabinet 1 further includes a fuse for connecting the electrical component 13 to an external power source. By connecting the fuse to the electrical component 13, the fuse can trip in the event of high voltage, disconnecting the voltage transformer from the external power source, protecting the voltage transformer from damage, and extending the lifespan of the electrical component 13.
[0040] In one embodiment, the switchgear 1 further includes a surge arrester, which is connected to a fuse and grounded. A surge arrester is a device that protects equipment in a power system from lightning strikes or internal overvoltage damage. When the switchgear 1 experiences an abnormally high voltage (overvoltage), the surge arrester quickly directs this voltage energy to the ground, thereby limiting the voltage peak and protecting the insulation system of the power equipment from damage, thus increasing the lifespan of the switchgear 1.
[0041] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A switchgear control device, characterized in that, include: A switch cabinet, wherein the switch cabinet control device includes a circuit breaker, a grounding switch, and electrical components; Control components; A comprehensive protection device, comprising a signal input terminal and multiple signal output terminals, wherein the signal input terminal is signal-connected to the control component; A dual-function intelligent controller, wherein the number of dual-function intelligent controllers is less than or equal to the number of signal output terminals, the dual-function intelligent controllers are connected to the signal output terminals, and the dual-function intelligent controllers are used to control the entry and exit of the circuit breaker, the opening and closing of the grounding switch, and the operation of electrical components.
2. The switchgear control device as described in claim 1, characterized in that, The switch cabinet also includes a first limit switch, which is located at the operating port of the circuit breaker. The first limit switch is used to monitor whether the circuit breaker is in place when entering or leaving the vehicle. The first limit switch is connected to the integrated protection device via a signal connection.
3. The switchgear control device as described in claim 1, characterized in that, The switch cabinet also includes a second limit switch, which is located at the operating hole of the grounding switch. The second limit switch is used to monitor whether the grounding switch is in position, and the second limit switch is connected to the integrated protection device for signal transmission.
4. The switchgear control device as described in any one of claims 2 or 3, characterized in that, The switch cabinet also includes a camera, which is signal-connected to the control component.
5. The switchgear control device as described in claim 1, characterized in that, The switchgear also includes a mechanical characteristic testing module, which is used to monitor the mechanical performance of the circuit breaker during operation. The mechanical characteristic testing module is connected to the control component via signals.
6. The switchgear control device as described in claim 1, characterized in that, The switch cabinet also includes a partial discharge detection module, which is used to monitor partial discharge phenomena inside or on the surface of the electrical components. The partial discharge detection module is signal-connected to the control component.
7. The switchgear control device as described in claim 1, characterized in that, The switchgear also includes a temperature detection module, which is used to monitor the temperature change of the circuit breaker and is connected to the control component via a signal connection.
8. The switchgear control device as described in claim 1, characterized in that, The switchgear control device also includes a laser printer, which is signal-connected to the control component.
9. The switchgear control device as described in claim 1, characterized in that, The switch cabinet also includes fuses for connecting to electrical components and external power sources.
10. The switchgear control device as described in claim 9, characterized in that, The switchgear also includes a surge arrester, which is connected to the fuse and grounded.