General-purpose vacuum circuit breaker test transfer device, control method, medium and product
By designing a portable test adapter with a built-in switching power supply module and multiple adapters, automated testing of different types of circuit breakers is achieved. This solves the problems of interface mismatch and complex operation in high-voltage circuit breaker testing, improves testing safety and efficiency, and reduces costs and workload.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED
- Filing Date
- 2024-12-12
- Publication Date
- 2026-06-12
AI Technical Summary
Existing technologies for testing high-voltage circuit breakers suffer from problems such as interface mismatch, complex operation, low safety, and low efficiency. In particular, effective connection cannot be achieved when connecting high-voltage distribution cabinets and vacuum circuit breakers. Furthermore, the workload is large when overhauling multiple circuit breakers, and the risks and inefficiencies caused by frequent replacement of test trolleys are significant.
Design a universal vacuum circuit breaker test adapter, including a portable test box, adapter socket and plug, built-in switching power supply module, capable of automatically converting AC to DC power, equipped with multiple sets of adapters of different models, and realizes connection with different models of circuit breakers through adjustable terminal block module, and equipped with heat sink to prevent heat generation, and provides computer-readable storage medium and control method.
It simplifies the operation process, improves test safety and accuracy, reduces costs, reduces working time and complexity, and increases work efficiency without changing on-site safety measures. It is applicable to the testing of multiple circuit breaker models, reduces the need for special equipment, and ensures personal and equipment safety.
Smart Images
Figure CN122193638A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electrical component technology, specifically to a general-purpose vacuum circuit breaker test transfer device, control method, medium, and product. Background Technology
[0002] In power systems, vacuum circuit breakers are crucial switching devices, and their performance and reliability directly affect the safe and stable operation of the power system. To ensure the proper functioning of vacuum circuit breakers, a series of rigorous tests are required during installation, maintenance, and troubleshooting. Traditionally, these tests rely on specific wiring methods and tools, such as using clamps to connect the circuit breaker under test to the test apparatus.
[0003] However, with technological advancements, higher demands have been placed on the testing of high-voltage circuit breakers (including vacuum circuit breakers), particularly in terms of safety, efficiency, and adaptability. For example, Chinese patent application CN207133401U describes a high-voltage circuit breaker test wiring conversion device. This device achieves rapid connection between the test equipment and the test product by employing standardized test plugs and aviation plugs compatible with secondary plugs of different high-voltage circuit breakers, thereby improving work efficiency and reducing safety hazards. However, this design has limitations when applied to the maintenance of vacuum circuit breakers in high-voltage distribution cabinets, mainly due to interface incompatibility, preventing effective connection between the high-voltage distribution cabinet and the vacuum circuit breaker.
[0004] Furthermore, the traditional practice for conducting relay protection group tests or meter signal verification tests involves opening the switchgear and moving the circuit breaker trolley to the test position. This not only increases operational complexity but also introduces potential risks by altering on-site safety measures, violating electrical safety regulations. Simultaneously, the increased workload and inefficiency caused by frequent changes to the test trolley during the simultaneous maintenance of multiple circuit breakers have become pressing issues that need to be addressed. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to provide a safe, reliable, efficient and convenient universal vacuum circuit breaker test transfer device, control method, medium and product, which can effectively improve the safety and accuracy of the test process, while simplifying the operation process and improving work efficiency.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A general-purpose vacuum circuit breaker test adapter includes: A portable test chamber is provided, which is equipped with a switching power supply module for converting AC power to DC power, and is used to realize the automatic energy storage power supply and unlocking power supply of the high voltage circuit breaker under test. The portable test chamber panel is provided with at least one set of test terminals for connecting external test equipment. The adapter socket is used to connect the aviation plug of the high-voltage circuit breaker to be tested to the portable test box; The adapter plug is used to connect the aviation socket inside the high-voltage switchgear to the portable test chamber.
[0007] As a further improvement of the present invention: the portable test chamber is provided with male connectors on both sides, and the male connectors are used to electrically connect with the female connectors on the external adapter.
[0008] As a further improvement of the present invention: the device includes multiple sets of adapters of different models, one end of the adapter is equipped with a connector that matches the aviation plug of a specific model of circuit breaker, and the other end is equipped with a female connector that matches the male connector of the portable test box.
[0009] As a further improvement of the present invention: the portable test box is also provided with an adjustable terminal block module, which is connected to the male connector of the portable test box, and can be connected to different types of circuit breakers by changing the wiring method of the adjustable terminal block module.
[0010] As a further improvement of the present invention: the adjustable terminal block module in the portable test chamber is isolated from the switching power supply module, and the isolation process includes adding a partition made of insulating material between the adjustable terminal block module and the switching power supply module.
[0011] As a further improvement of the present invention: the portable test chamber is provided with a heat sink on its surface to prevent the adjustable terminal block module from being damaged due to the heat generated by the switching power supply module during operation.
[0012] As a further improvement of the present invention: the test terminals include trip positive terminal, trip negative terminal, closing positive terminal, and closing negative terminal.
[0013] This invention also provides a general-purpose test switching control method for vacuum circuit breakers, comprising: Connect the adapter socket to the aviation plug of the high-voltage circuit breaker to be tested; Connect the adapter plug to the aviation socket inside the high-voltage switchgear; The portable test chamber uses a built-in switching power supply module to automatically store energy and release the power supply from the high-voltage circuit breaker under test. The tripping and closing circuits are tested by adjusting the test terminals on the portable test box.
[0014] The present invention also provides a computer-readable storage medium storing a computer program / instructions programmed or configured to execute the general-purpose vacuum circuit breaker test switching control method by a processor.
[0015] The present invention also provides a computer program product, including a computer program / instruction, which is programmed or configured to execute the general-purpose vacuum circuit breaker test switching control method via a processor.
[0016] Compared with the prior art, the advantages of the present invention are as follows: 1. This invention, through its built-in switching power supply module, can convert the input AC power into a stable DC power supply, which directly supplies the energy storage power supply and the locking electromagnet power supply of the vacuum circuit breaker. This effectively avoids the necessity of manual energy storage and manual unlocking of the locking circuit, further reducing working time and complexity.
[0017] 2. Furthermore, this invention achieves compatibility with aviation plugs of different models of high-voltage circuit breakers by designing a portable test chamber and multiple sets of adapters of different models, so that the same test device can be used to test multiple models of circuit breakers, reducing the need for special equipment, lowering costs, and improving resource utilization.
[0018] 3. Furthermore, the present invention enables the adjustment of internal wiring through an internal adjustable terminal block module to adapt to different circuit breaker models without requiring structural modifications to the entire test device. This significantly simplifies the test preparation process, reduces the workload of operators, and improves work efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall layout of the general-purpose vacuum circuit breaker test transfer device according to an embodiment of the present invention.
[0020] Figure 2 This is a schematic diagram of the circuit breaker trolley-side adapter structure according to an embodiment of the present invention.
[0021] Figure 3 This is a schematic diagram of the switch cabinet side adapter structure according to an embodiment of the present invention.
[0022] Figure 4 This is a panel layout diagram of a general-purpose vacuum circuit breaker test transfer device according to an embodiment of the present invention.
[0023] Legend 1. Adapter socket; 2. Adapter plug; 3. First adapter female connector; 4. Second adapter female connector; 5. Connecting cable; 6. Male connector. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0025] like Figures 1-3 As shown in the figure, this embodiment of a general-purpose vacuum circuit breaker test adapter includes: Portable test chamber, the portable test chamber is equipped with a switching power supply module for converting AC power to DC power, which is used to realize the automatic energy storage power supply and unlocking power supply of the high voltage circuit breaker under test. The portable test chamber panel is equipped with at least one set of test terminals for connecting external test equipment. Adapter socket 1 is used to connect the aviation plug of the high-voltage circuit breaker to be tested to the portable test box; Adapter plug 2 is used to connect the aviation socket inside the high-voltage switch cabinet to the portable test chamber.
[0026] In a specific application example, a portable test chamber In this embodiment, the test terminals include trip positive terminal, trip negative terminal, closing positive terminal, and closing negative terminal.
[0027] In this embodiment, male connectors 6 are provided on both sides of the portable test box. The male connectors 6 are used to make electrical connections with the female connectors on the external adapter.
[0028] In this embodiment, the device includes multiple sets of adapters of different models. One end of the adapter is equipped with a connector that matches the aviation plug of a specific model of circuit breaker, and the other end is equipped with a female connector that matches the male connector 6 of the portable test box. The two ends of the adapter are connected by a connecting cable 5.
[0029] This embodiment, through the design of a portable test chamber and multiple sets of adapters of different models, enables the completion of mechanical characteristic tests and relay protection drive tests of vacuum circuit breakers without altering on-site safety measures. This not only avoids the risks associated with frequent operation of the circuit breaker trolley required by traditional methods but also significantly shortens the maintenance time per interval.
[0030] This embodiment, by configuring adapters of various specifications, can be compatible with aviation plugs for different models of high-voltage circuit breakers, making the same testing equipment suitable for testing multiple models of circuit breakers. This high degree of versatility reduces the need for specialized equipment, lowers costs, and improves resource utilization.
[0031] In this embodiment, the portable test box is also equipped with an adjustable terminal block module. The adjustable terminal block module is connected to the male connector of the portable test box. By changing the wiring method of the adjustable terminal block module, it can be connected to different types of circuit breakers.
[0032] This embodiment effectively avoids modifications to the overall experimental setup, simplifies the test preparation process, reduces workload, and improves work efficiency.
[0033] In this embodiment, the adjustable terminal block module and the switching power supply module inside the portable test chamber are isolated. The isolation process includes adding a partition made of insulating material between the adjustable terminal block module and the switching power supply module.
[0034] Specifically, to ensure effective isolation between the switching power supply module and the adjustable terminal block module, the following isolation measures can be taken: 1. Physical isolation Insulating partition: An insulating partition is installed inside the portable test chamber to separate the switching power supply module and the terminal block module. This physical isolation effectively prevents electrical interference between the two and reduces the risk of short circuits.
[0035] Optimized spatial layout: The internal space is rationally planned to ensure sufficient distance between the switching power supply module and the terminal block module to avoid the effects of high temperature or electromagnetic radiation.
[0036] 2. Electrical isolation Using an isolation transformer: An isolation transformer can be introduced into the circuit design to achieve electrical isolation, which can effectively block the DC current path while allowing AC signals to pass through.
[0037] Optical coupler: The optical coupler is used for signal transmission. It uses light as a medium to completely cut off the direct electrical connection between two circuits, providing good anti-interference ability and security.
[0038] Relay isolation: For the transmission of control signals, relays can be used to isolate the input and output circuits. This not only achieves electrical isolation but also provides protection.
[0039] In this embodiment, the portable test chamber is equipped with a heat sink to prevent the adjustable terminal block module from being damaged due to heat generated by the switching power supply module during operation.
[0040] In addition to adding a heat sink to the surface of the portable test chamber, this embodiment also includes ventilation openings at appropriate locations to ensure good air circulation and help reduce the internal temperature, especially for the switching power supply module which is prone to overheating. A built-in temperature sensor can also monitor temperature changes in critical components in real time; if a set threshold is exceeded, the fan will automatically start to accelerate heat dissipation or the power supply will be cut off to protect the equipment from damage.
[0041] In a specific application embodiment, the portable test chamber is designed with dimensions of 500mm × 400mm × 200mm. It is understood that the actual dimensions of the portable test chamber can be adjusted according to project requirements. The portable test chamber includes a switching power supply module, which converts AC 220V voltage to DC 220V voltage to provide energy storage power and interlocking electromagnet power for the circuit breaker trolley. This effectively avoids the need for manual energy storage and manual unlocking of the interlocking circuit, further reducing working time and complexity.
[0042] The portable test box has trip and closing circuits on its panel, with four test terminals: trip positive, trip negative, closing positive, and closing negative. Figure 4 As shown. Part of the adapter socket 1 is similar to the aviation socket inside the high-voltage switchgear, and is connected to the aviation plug of the high-voltage circuit breaker under test during testing. Adapter plug 2 is similar to the aviation plug on the circuit breaker trolley, and is connected to the aviation socket inside the high-voltage switchgear during testing. The design strictly adheres to the test positions and size specifications of the aviation plugs for each circuit breaker model, and corresponding test plugs are configured for different circuit breaker models.
[0043] This invention adds a switching power supply module to the portable test chamber, converting the input AC mains power into 220V DC power to supply the energy storage power and locking electromagnet power of the vacuum circuit breaker. During mechanical characteristic tests, manual energy storage is effectively avoided, eliminating the need for manual release of the locking circuit and significantly reducing working time. The portable test chamber has circular male connectors on both sides for mating with the circular female connectors of adapters. The two male connectors are connected via terminal blocks within the portable test chamber, allowing connection to different types of circuit breakers by changing the wiring method of the terminal blocks.
[0044] This invention relates to a universal vacuum circuit breaker test transfer device, which is easy to use, effectively reduces on-site operational safety risks, and ensures the safety of personnel and equipment in actual production. It enables substation workers to perform maintenance work such as overall transmission tests, circuit breaker trolley tripping and closing characteristic tests on high-voltage circuit breakers in switchgear, achieving twice the result with half the effort. It reduces labor intensity, improves the work efficiency of operators, greatly shortens the operation time, and improves the reliability of power supply.
[0045] The samples developed by this invention have been tested on-site at the 220 kV and 110 kV substations under its jurisdiction. The results have verified that the device of this invention can effectively improve the safety and efficiency of the operation process and can shorten the maintenance time of a single bay from the original 1 hour to 20 minutes, which has been recognized by the on-site maintenance personnel.
[0046] This embodiment also provides a general-purpose test switching control method for vacuum circuit breakers, including: Connect adapter socket 1 to the aviation plug of the high-voltage circuit breaker to be tested; Connect adapter plug 2 to the aviation socket inside the high-voltage switchgear; The portable test chamber uses a built-in switching power supply module to automatically store energy and release the power supply from the high-voltage circuit breaker under test. The tripping and closing circuits are tested by adjusting the test terminals on the portable test box.
[0047] This embodiment also provides a computer-readable storage medium storing a computer program / instructions that are programmed or configured to execute a general-purpose vacuum circuit breaker test switching control method via a processor.
[0048] This embodiment also includes a computer program product, comprising a computer program / instruction that is programmed or configured to execute a general-purpose vacuum circuit breaker test switching control method via a processor.
[0049] Those skilled in the art will understand that the above embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the process. Figure 1 One or more processes and / or boxes Figure 1The computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The functions specified in one or more boxes. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable apparatus for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention should fall within the protection scope of the present invention.
[0050] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A universal vacuum circuit breaker test adapter, characterized in that, include: A portable test chamber is provided, which is equipped with a switching power supply module for converting AC power to DC power, and is used to realize the automatic energy storage power supply and unlocking power supply of the high voltage circuit breaker under test. The portable test chamber panel is provided with at least one set of test terminals for connecting external test equipment. The adapter socket is used to connect the aviation plug of the high-voltage circuit breaker to be tested to the portable test box; The adapter plug is used to connect the aviation socket inside the high-voltage switchgear to the portable test chamber.
2. The universal vacuum circuit breaker test adapter according to claim 1, characterized in that, The portable test chamber is equipped with male connectors on both sides, which are used for electrical connection with the female connectors on the external adapter.
3. The universal vacuum circuit breaker test adapter according to claim 2, characterized in that, The device includes multiple sets of adapters of different models. One end of each adapter is equipped with a connector that matches the aviation plug of a specific model of circuit breaker, and the other end is equipped with a female connector that matches the male connector of the portable test chamber.
4. The universal vacuum circuit breaker test adapter according to claim 1, characterized in that, The portable test chamber is also equipped with an adjustable terminal block module, which is connected to the male connector of the portable test chamber. By changing the wiring method of the adjustable terminal block module, it can be connected to different types of circuit breakers.
5. The universal vacuum circuit breaker test adapter according to claim 4, characterized in that, The adjustable terminal block module in the portable test chamber is isolated from the switching power supply module. The isolation process includes adding a partition made of insulating material between the adjustable terminal block module and the switching power supply module.
6. The universal vacuum circuit breaker test adapter according to any one of claims 1 to 5, characterized in that, The portable test chamber is equipped with a heat sink to prevent the adjustable terminal block module from being damaged due to overheating of the switching power supply module during operation.
7. The universal vacuum circuit breaker test adapter according to any one of claims 1 to 5, characterized in that, The test terminals include trip positive, trip negative, closing positive, and closing negative.
8. A general-purpose vacuum circuit breaker test switching control method according to any one of claims 1 to 7, characterized in that, include: Connect the adapter socket to the aviation plug of the high-voltage circuit breaker to be tested; Connect the adapter plug to the aviation socket inside the high-voltage switchgear; The portable test chamber uses a built-in switching power supply module to automatically store energy and release the power supply for the high-voltage circuit breaker under test. The tripping and closing circuits are tested by adjusting the test terminals on the portable test box.
9. A computer-readable storage medium storing a computer program / instructions, characterized in that, The computer program / instructions are programmed or configured to execute the general-purpose vacuum circuit breaker test switching control method of claim 8 via a processor.
10. A computer program product comprising a computer program / instructions, characterized in that, The computer program / instructions are programmed or configured to execute the general-purpose vacuum circuit breaker test switching control method of claim 8 via a processor.