Auxiliary wiring device, system and method for circuit breaker mechanical characteristic testing

Abstract

The application discloses an auxiliary wiring device, system and method for circuit breaker mechanical characteristic test, and belongs to the technical field of power equipment test and maintenance, comprising a cover plate mechanism, a shell mechanism and a banana connector, the cover plate is provided with a plurality of test line jacks for signal test lines to pass through, a containing space is formed in the shell and a pin jack is formed on the shell and is adapted to an aviation plug pin, the pin jack is coaxially adapted to the test line jack, the banana connector is electrically connected with the signal test line and the pin, respectively, and the detection instrument and the aviation plug of the circuit breaker to be tested are connected in an on state. The application provides accurate positioning and guidance for the signal test line and the pin through coaxial adaptation of the test line jack and the pin jack, avoids wrong connection, saves the step of repeatedly checking the circuit, the two ends of the banana connector form stable electrical connection with the connector, signal transmission is stable, one-time connection can be used for multi-interval test, only the device needs to be switched to different circuit breakers, and the test period is greatly shortened.

Description

Technical Field

[0001] This invention relates to the field of power equipment testing and maintenance technology, and specifically to an auxiliary wiring device, system and method for testing the mechanical characteristics of circuit breakers. Background Technology

[0002] As a core control device in the power distribution network, the mechanical characteristic test of circuit breakers is a crucial part of preventative testing, directly affecting the reliability of the equipment's opening and closing and the safe and stable operation of the power grid. Traditional testing employs a unit-by-unit wiring method, where the connection is established by manually touching the closing, opening, and common terminal pins on the circuit breaker's aviation connector point by point using a mechanical characteristic tester signal line to collect core parameters such as opening and closing time, speed, and travel. While this method is adequate for testing a small number of intervals, it suffers from significant efficiency and safety bottlenecks in the scenario of batch preventative testing across multiple intervals in substations.

[0003] First, this method is inefficient, with repetitive plugging and unplugging and positioning of pins taking a long time and significantly extending the overall test cycle, making it difficult to meet the tight time window for power outage maintenance in power distribution networks. Second, the wiring reliability is poor. The dense arrangement and small spacing of the aviation plug pins make it easy for manual operation to result in poor contact, incorrect pin connection, or loose connection. This may not only lead to distorted test data or test interruption, but also cause equipment failures such as short circuits and burnt-out closing coils due to accidental contact, posing significant safety hazards. Third, the operation lacks standardization, relying entirely on manual touch based on personnel experience, lacking standardized positioning and error prevention mechanisms. The poor consistency of operation among different personnel affects the comparability of test results and increases the risk of rework and equipment damage due to misoperation. This invention proposes a new solution to the above problems. Summary of the Invention

[0004] To overcome at least one of the aforementioned drawbacks, this invention provides an auxiliary wiring device, system, and method for testing the mechanical characteristics of circuit breakers. The objective of this invention can be achieved by employing the following technical solutions: A first aspect of this application provides an auxiliary wiring device for testing the mechanical characteristics of a circuit breaker, comprising: A cover plate mechanism, the cover plate mechanism including a plate body, the plate body having a plurality of test line insertion holes for signal test lines to pass through; The housing mechanism includes a housing with an accommodating space inside. A cover plate mechanism covers the top opening of the housing. The housing has a plurality of pin holes for electrical connection with the pins of an aviation connector. The pin holes and the test lead holes are coaxially arranged and mutually adapted. A banana connector is located between the test lead socket and the pin socket. One end of the banana connector is connected to the signal test lead inserted into the test lead socket, and the other end is connected to the pin of the aviation plug passing through the pin socket, so as to realize the conduction between the tester and the aviation plug of the circuit breaker under test.

[0005] In one possible implementation, the bottom wall of the housing is provided with a plurality of signal line sockets through which the signal lines of the aviation plug pass. The banana connector establishes a circuit connection with the pins of the aviation plug corresponding to the pin socket positions by means of the signal lines passing through the signal line sockets.

[0006] In one possible implementation, the banana connector includes a matching and electrically connected banana female head and a banana male head, which are fixed together by welding. The banana female head is used to connect to a signal test wire plug inserted into the test wire hole, and the banana male head is used to connect to an aviation plug pin passing through the pin hole.

[0007] In one possible implementation, the bottom of the receiving space is provided with a limiting groove, the shape of which is adapted to the shape of the banana connector. The banana connector is embedded in the limiting groove for positioning, and the banana connector is coaxially arranged with the corresponding test plug hole, signal plug hole and pin plug hole.

[0008] In one possible implementation, the housing mechanism further includes two locking pivots disposed opposite to each other on the outer side wall of the housing. The shape of the locking pivots is adapted to the locking device provided with the aviation plug. Through the cooperation of the locking pivots and the locking device, the auxiliary wiring device is locked and fixed to the aviation plug.

[0009] In one possible implementation, the locking device includes a rotatable hook integrated with the aviation plug, the hook having a hook groove, the hook being able to rotate to allow the locking shaft to be embedded in the hook groove to achieve position locking.

[0010] In one possible implementation, the plate body is provided with a latch, and the housing is provided with a slot adapted to the latch. The latch can be embedded in the slot to realize the detachable connection between the cover plate mechanism and the housing mechanism.

[0011] In one possible implementation, both the cover plate mechanism and the outer shell mechanism are made of insulating and flame-retardant materials, and the surface of the plate is treated with an anti-slip texture.

[0012] A second aspect of this application provides an auxiliary wiring system for testing the mechanical characteristics of a circuit breaker, comprising any of the auxiliary wiring devices for testing the mechanical characteristics of a circuit breaker in the first aspect, and a testing instrument. The testing instrument includes a closing control line, a common control line, and a opening control line. Each end of the closing control line, the common control line, and the opening control line is connected to a signal test line. The signal test lines are inserted one-to-one into the test line sockets. The testing instrument sends control signals sequentially through the signal test lines, the test line sockets, the banana connector, the signal line socket, the pin socket, and the pins of the aviation plug to the circuit breaker under test, thereby realizing opening and closing control and parameter acquisition.

[0013] A third aspect of this application provides an auxiliary wiring method for testing the mechanical characteristics of a circuit breaker, applied to the auxiliary wiring system for testing the mechanical characteristics of a circuit breaker in the second aspect. The steps of the auxiliary wiring method for testing the mechanical characteristics of a circuit breaker include: Align the auxiliary wiring device with the aviation plug of the circuit breaker under test, and insert each pin of the aviation plug into the corresponding pin hole on the housing until the pin and the banana connector at the corresponding pin hole complete the electrical connection. Rotate the locking device on the aviation plug so that the hook of the locking device hooks the locking shaft on the outside of the housing to complete the locking and fixing of the auxiliary wiring device and the aviation plug. Insert the signal test lines corresponding to the closing control line, common control line, and opening control line of the detector into the test line sockets of the auxiliary wiring device cover plate mechanism one by one according to the markings, so that each signal test line is electrically connected to the banana connector at the corresponding position. The detector is started, and the output control signal is transmitted to the circuit breaker in sequence through the signal test line, test line socket, banana connector, signal line socket, pin socket and aviation plug pin, triggering the circuit breaker to complete the opening and closing action. At the same time, the mechanical characteristic parameters of the circuit breaker are collected and transmitted back to the detector. After the single-bay circuit breaker test is completed, loosen the locking device and locking shaft, remove the auxiliary wiring device, move it to the next bay circuit breaker to be tested, repeat the clamping and locking operation and complete the test. There is no need to repeatedly plug and unplug the signal test line of the tester. After all circuit breakers under test have been tested, disconnect the signal test wires from the test wire sockets on the cover plate, then loosen the locking device and locking shaft, and remove the auxiliary wiring device from the aviation plug to complete the system storage.

[0014] The beneficial technical effects of this invention are as follows: According to this disclosure, the auxiliary wiring device, system, and method for testing the mechanical characteristics of circuit breakers, through the coaxial matching of the test lead sockets on the cover plate and the pin sockets on the housing, can provide precise positioning guidance for signal test leads and aviation plug pins, ensuring the correspondence of the connection positions at both ends of the banana connector, avoiding misconnection problems, reducing the probability of wiring errors, and eliminating the tedious step of repeatedly checking the lines during wiring. The banana connector, as an intermediate conductive component, is located between the two sockets and can simultaneously form a stable electrical connection with the connectors at both ends. This retains the advantage of convenient banana connector insertion while improving the reliability of the connection through the positioning and fixing of the outer housing and cover plate, preventing poor contact or detachment during testing, ensuring the stability of test signal transmission, and making the entire wiring process smoother and faster. The integrated design of this device enables rapid, error-proof, and standardized docking, replacing the traditional manual point-by-point wiring method. It can reliably connect signal lines in one go, allowing multiple interval tests to be conducted with the testing instrument only once. Subsequent tests only require switching the device to different circuit breakers, saving a significant amount of repetitive wiring time and significantly shortening the overall test cycle. Compared to existing manual point-by-point wiring methods, it greatly improves test efficiency. The standardized sockets and built-in banana connectors improve the accuracy and reliability of repeated docking, effectively avoiding problems such as incorrect, reversed, or loose connections caused by manual contact, reducing the risk of equipment damage, and ensuring data accuracy. It can also be adapted to different specifications of circuit breaker aviation plugs, expanding the device's applicability. The device has a simple structure, is easy to operate, and can be quickly switched and reused in multiple intervals, improving the standardization level and overall reliability of batch pre-testing work. Attached Figure Description

[0015] The following are given in a non-limiting manner by way of embodiments in the accompanying drawings: Figure 1 A perspective view of the unfolded structure of the auxiliary wiring device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the cover plate mechanism according to an embodiment of the present invention is shown; Figure 3 A three-dimensional structural view of the cover plate mechanism according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the outer casing mechanism at one angle according to an embodiment of the present invention is shown; Figure 5 This shows a structural schematic diagram of the housing mechanism from another angle according to an embodiment of the present invention; Figure 6 A perspective view of the outer shell mechanism according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the banana connector according to an embodiment of the present invention is shown; Figure 8 A schematic diagram showing the installation position of the auxiliary wiring device and aviation plug for circuit breaker mechanical characteristic testing according to an embodiment of the present invention is provided. Figure 9 A schematic diagram showing the connection of the detector, banana connector, and pins according to an embodiment of the present invention is provided.

[0016] In the diagram: 100, auxiliary wiring device; 200, aviation plug; 201, locking device; 202, pin; 300, tester; 301, closing control line; 302, common control line; 303, opening control line; 304, signal test line; 1, cover plate mechanism; 11, plate body; 12, test line socket; 13, latch; 2, outer shell mechanism; 21, shell; 22, signal line socket; 23, slot; 24, locking shaft; 25, pin socket; 3, banana connector; 31, banana female connector; 32, banana male connector. Detailed Implementation

[0017] In the following detailed disclosure, these embodiments are fully described with reference to the accompanying drawings. In order to enable those skilled in the art to understand and clarify the technical solution of the present invention more clearly, the embodiments described below are not limited thereto. The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings.

[0018] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] The first aspect of this application, as Figures 1-8As shown, an auxiliary wiring device for testing the mechanical characteristics of a circuit breaker is provided, including a cover plate mechanism 1, a housing mechanism 2, and a banana connector 3. The cover plate mechanism 1 includes a plate body 11, on which a plurality of test wire sockets 12 for signal test wires 304 to pass through are provided. The housing mechanism 2 includes a housing 21, in which a receiving space is formed. The cover plate mechanism 1 covers the top opening of the housing 21. The housing 21 has a plurality of pin sockets 25 for electrical connection with the pins 202 of the aviation plug 200. The pin sockets 25 and the test wire sockets 12 are coaxially arranged and mutually adapted. The banana connector 3 is located between the test wire sockets 12 and the pin sockets 25. One end of the banana connector 3 establishes a circuit connection with the signal test wire 304 inserted into the test wire socket 12, and the other end is used to establish a circuit connection with the pins 202 of the aviation plug 200 passing through the pin sockets 25, thereby realizing the conduction between the tester 300 and the aviation plug 200 of the circuit breaker under test.

[0021] The auxiliary wiring device for circuit breaker mechanical characteristic testing provided in this embodiment uses a coaxially adapted configuration between the test lead socket 12 on the cover plate and the pin socket 25 on the housing 21. This provides precise positioning guidance for the signal test lead 304 and the aviation plug 200 pin 202, ensuring the correspondence of the connection positions at both ends of the banana connector 3, avoiding misconnection and reducing the probability of wiring errors. It also eliminates the tedious step of repeatedly checking the wiring during the wiring process. The banana connector 3, as an intermediate conductive component, is located between the two sockets and can simultaneously form a stable electrical connection with the connectors at both ends. It retains the advantage of easy insertion of the banana connector 3, while the positioning and fixing of the outer housing 21 and the cover plate improves the reliability of the connection, preventing poor contact or detachment during the test, ensuring the stability of the test signal transmission, and making the entire wiring process smoother and faster. The integrated design enables rapid, error-proof, and standardized docking, replacing the traditional manual point-by-point wiring method. It can reliably connect signal lines in one go, allowing multiple interval tests to be performed with the mechanical characteristic tester 300 only once. Subsequent tests only require switching the device to different circuit breakers, saving a significant amount of repetitive wiring time and significantly shortening the overall test cycle. Compared to the existing manual point-by-point wiring method, it greatly improves test efficiency. The standardized sockets and built-in banana connector 3 improve the accuracy and reliability of repeated docking, effectively avoiding problems such as incorrect, reversed, or loose connections caused by manual contact, reducing the risk of equipment damage, ensuring data accuracy, and adapting to different specifications of circuit breaker aviation plugs 200, thus expanding the device's applicability. The device has a simplified structure, is easy to operate, and can be quickly switched and reused in multiple intervals, improving the standardization level and overall reliability of batch pre-testing work.

[0022] In one possible implementation, such as Figure 4As shown, the bottom wall of the housing 21 has several signal line sockets 22 through which the signal lines of the aviation plug 200 pass. The banana connector 3 establishes a circuit connection with the pins 202 of the aviation plug 200 at the corresponding pin sockets 25 by passing the signal lines through the signal line sockets 22.

[0023] By opening the signal line socket 22 on the bottom wall of the housing 21, the signal line of the aviation plug 200 can pass through the housing 21 from the bottom, avoiding the mess caused by multiple signal lines tangling and intertwining during wiring, thus improving the overall neatness and maintainability of the structure. The banana connector 3 establishes a circuit connection with the pin 202 at the corresponding pin socket 25 position by means of the signal line passing through the signal line socket 22, forming a conductive path from the signal line, pin 202 to the banana connector 3. The signal line socket 22 and the pin socket 25 correspond to each other in spatial position, combining the transition conduction function of the banana connector 3 with the guiding and positioning function of the signal line socket 22, which not only ensures the stability and reliability of the circuit connection, but also simplifies the internal wiring structure, making the device compact and reasonable, and easy to assemble and use.

[0024] The test lead socket 12 is a circular through-hole that matches the number of pins 202 on the aviation connector 200, ensuring that each signal has an independent corresponding insertion channel and avoiding channel conflicts caused by multiple signal lines sharing the same port. The diameter of the circular through-hole is precisely matched to the plug of the signal test lead 304 on the detector 300. The operator only needs to align the plug of the signal test lead 304 with the opening of the test lead socket 12 to complete the precise positioning, realizing the quick insertion and removal of the signal test lead 304.

[0025] In one possible implementation, such as Figure 6 and Figure 7 As shown, the banana connector 3 includes a banana female connector 31 and a banana male connector 32 that are mutually matched and electrically connected. The banana female connector 31 and the banana male connector 32 are fixed as a whole by welding. The banana female connector 31 is used to connect to the plug of the signal test line 304 that is inserted into the test plug hole, and the banana male connector 32 is used to connect to the pin 202 of the aviation plug 200 that passes through the pin jack 25.

[0026] Among them, by welding the banana female connector 31 and the banana male connector 32 into an integrated banana connector 3, the potential problems such as loosening, rotation or poor contact that are prone to occur during repeated insertion and removal of the separate connectors are eliminated, which significantly enhances the overall rigidity of the connector and the long-term stability of the electrical connection. The banana-shaped female connector 31 connects to the signal test line 304 plug from the test line socket 12 on the cover plate, while the banana-shaped male connector 32 connects to the pin 202 of the aviation plug 200 that passes through the pin socket 25 on the housing 21. After being welded together, they form a continuous conductive path from the signal test line 304 to the pin 202 without any intermediate transition points. The integrated welding structure means that the banana connector 3 does not require additional pairing or position adjustment of the female and male connectors during the overall assembly and field use. This simplifies the internal assembly process, eliminates repeated calibration operations due to misalignment of the connectors, and enhances the overall vibration resistance of the device. Even when subjected to vibration impact from switching operations during the mechanical characteristic test of the circuit breaker, the welded banana connector 3 can still maintain a stable contact, eliminating the possibility of momentary disconnection or loose connection at the connection point under vibration conditions, and ensuring the reliability of test signal transmission and the accuracy of test data.

[0027] In one possible implementation, a limiting groove is provided at the bottom of the receiving space. The shape of the limiting groove is adapted to the shape of the banana connector 3. The banana connector 3 is embedded in the limiting groove to achieve positioning. The banana connector 3 is coaxially arranged with the corresponding test plug hole, signal plug hole and pin plug hole 25.

[0028] By setting a limiting groove at the bottom of the receiving space that matches the shape of the banana connector 3, the banana connector 3 can be accurately embedded in the groove, achieving reliable positioning within the housing 21. This prevents the banana connector 3 from shifting within the housing 21, ensuring its positional stability during long-term use and repeated insertion and removal. After positioning, the banana connector 3 maintains coaxial alignment with the corresponding test connector hole, signal connector hole, and pin connector hole 25. This ensures that when the test connector plug is inserted from above the cover plate and the pin 202 of the aviation connector 200 is inserted from below the housing 21, it can accurately align with the corresponding interface of the banana connector 3. This achieves coaxial convergence of the connectors in both directions, eliminating problems such as jamming, poor contact, or bending of the pin 202 caused by axial deviation.

[0029] In one possible implementation, such as Figures 4-6 As shown, the outer casing mechanism 2 also includes two locking pivots 24 disposed opposite to each other on the outer side wall of the casing 21, as follows: Figure 7 As shown, the shape of the locking shaft 24 is compatible with the locking device 201 of the aviation plug 200. Through the cooperation of the locking shaft 24 and the locking device 201, the auxiliary wiring device 100 and the aviation plug 200 are locked and fixed.

[0030] By setting two locking shafts 24 opposite to each other on the outer wall of the housing 21, and forming a shape matching with the locking device 201 of the aviation plug 200, a fast and reliable mechanical locking and fixing between the auxiliary wiring device 100 and the aviation plug 200 is achieved. The locking shafts 24 adopt a design that matches the original locking device 201 of the aviation plug 200. The operator only needs to align the housing mechanism 2 with the aviation plug 200 and insert it into place, and then rotate the locking device 201 to connect with the locking shafts 24 to complete the fastening connection between the two. The whole process does not require additional tools or fasteners, and the operation is simple and quick, which greatly improves the efficiency of on-site docking.

[0031] The locking shaft 24 and the locking device 201 work together to form a mechanical locking structure, which can effectively resist the vibration and impact generated when the circuit breaker operates and the external force interference caused by the cable dragging during the test. This prevents the device from accidentally coming loose from the aviation plug 200, ensures that the pin socket 25 and the pin 202 always maintain a stable electrical contact state, avoids the risk of signal interruption or poor contact caused by loose connection, and ensures the structural stability and safety of the test process.

[0032] In one possible implementation, such as Figure 8 As shown, the locking device 201 includes a rotatable hook that comes with the aviation plug 200. The hook has a hook groove and can be rotated so that the locking shaft 24 is embedded in the hook groove to achieve position locking.

[0033] Specifically, by utilizing the rotating hook and its groove on the aviation plug 200 to form a precise fit with the locking shaft 24 of the auxiliary wiring device 100, the hook can rotate flexibly around its own shaft. When the auxiliary wiring device 100 and the aviation plug 200 are in place, the operator only needs to move the hook to rotate it toward the locking shaft 24, and the locking shaft 24 can slide into the groove to lock and fix the position between the two.

[0034] Understandably, the arc shape of the hook groove matches the outer circular contour of the locking shaft 24. After the shaft is embedded in the hook groove, it forms a stable mechanical constraint, which can effectively limit the movement of the auxiliary wiring device 100 relative to the aviation plug 200 and prevent the docking part from loosening or shaking when subjected to force.

[0035] In one possible implementation, such as Figure 2 and Figure 3 As shown, the plate 11 is provided with a latch 13, such as Figure 4 and Figure 6 As shown, the housing 21 has a slot 23 that is adapted to the latch 13. The latch 13 can be inserted into the slot 23 to realize the detachable connection between the cover plate mechanism 1 and the housing mechanism 2.

[0036] The cover plate mechanism 1 and the housing 21 are designed with a latch 13 on the plate 11 and a corresponding slot 23 on the housing 21. The latch 13 and the slot 23 are designed to fit each other. When the cover is closed, the latch 13 can slide precisely into the slot 23, ensuring that the cover plate mechanism 1 and the housing 21 are quickly and accurately aligned. The detachable connection between the cover plate mechanism 1 and the housing mechanism 2 is achieved by using the latch 13 to embed into the slot 23. The overall structure is simple and compact, and the assembly and disassembly processes can be completed without any tools, improving assembly efficiency and ease of operation. When it is necessary to inspect or replace internal components, the cover plate and housing 21 can be quickly separated simply by removing the latch 13 from the slot 23. This facilitates daily maintenance and troubleshooting, reducing the time cost and labor intensity of maintenance work.

[0037] The cover plate mechanism 1 and the outer shell mechanism 2 are combined by covering to form a closed receiving space, which can effectively protect the banana connector 3 inside, avoid the connection from loosening or falling off due to external environmental interference or external force during the test, and also make the overall device more robust and easier to transport and position for installation.

[0038] In one possible implementation, both the cover plate mechanism 1 and the outer shell mechanism 2 are made of insulating and flame-retardant materials, and the surface of the plate 11 is treated with an anti-slip texture.

[0039] By using insulating and flame-retardant materials to make both the cover plate mechanism 1 and the outer shell mechanism 2, the device as a whole has excellent electrical insulation performance, which can effectively block the leakage current conduction path that may be generated during the test, prevent operators from contacting live parts, and ensure personal safety. The flame-retardant properties of the material itself can prevent the device from burning when encountering extreme working conditions such as electric arc or overheating, thus improving the safety of on-site operations.

[0040] Among them, the outer shell mechanism 2 is preferably made of insulating and flame-retardant ABS engineering plastic and is manufactured by one-piece molding process. The whole is a rectangular cavity structure with a compact and regular structure and no splicing gaps. This eliminates the weak connection points and dust and moisture intrusion channels caused by separate assembly from the root, and improves the mechanical strength and protective durability of the device. Its external dimensions are precisely adapted to the 10kV conventional circuit breaker aviation plug 200. When docking, it fits tightly without shaking, ensuring that the pin hole 25 and the pin 202 are accurately aligned.

[0041] Among them, the cover plate mechanism 1 serves as an insulating protective cover plate, effectively isolating the internally charged banana connector 3. The surface adopts a matte anti-slip design, which increases the coefficient of friction during operation and prevents the risk of electric shock or short circuit caused by accidental contact with surrounding metal parts due to slipping hands, thus balancing safety protection and ease of operation.

[0042] The second aspect of this application, as Figures 1-9As shown, an auxiliary wiring system for testing the mechanical characteristics of a circuit breaker is provided, including any of the auxiliary wiring devices for testing the mechanical characteristics of a circuit breaker as described in the first aspect, and a tester 300. The tester 300 includes a closing control line 301, a common control line 302, and a opening control line 303. The ends of the closing control line 301, the common control line 302, and the opening control line 303 are all connected to signal test lines 304. The signal test lines 304 are inserted one-to-one into the test line sockets 12. The tester 300 sends control signals sequentially through the signal test lines 304, the test line sockets 12, the banana connector 3, the signal line socket 22, the pin socket 25, and the pins 202 of the aviation plug 200 to the circuit breaker under test, thereby realizing opening and closing control and parameter acquisition.

[0043] The auxiliary wiring system for circuit breaker mechanical characteristic testing provided in this embodiment integrates the auxiliary wiring device 100 with the tester 300 to construct a signal transmission path from the signal test line 304 of the tester 300 to the aviation plug 200 of the circuit breaker under test. The closing control line 301, common control line 302, and opening control line 303 of the tester 300 are all pre-connected with signal test lines 304. The signal test lines 304 are inserted one-to-one into the test line sockets 12 on the cover of the auxiliary wiring device 100, forming a quick-connect interface at the tester 300 end. The auxiliary wiring device 100 internally uses a banana connector 3 as the core conductive component to transmit the electrical signal from the test line socket 12 to the signal line socket 22. Then, through the cooperation of the pin socket 25 and the pin 202 of the aviation plug 200, the signal is finally delivered to the circuit breaker under test, realizing the connection of closing control signals, opening control signals, and common control signals. The entire circuit is connected in one go, eliminating the need for individual cable operation. The signal path from the control command issued by the detector 300 to the execution of the circuit breaker is integrated into a single device. All interfaces are standardized plug-in structures, and the coaxial positioning and adaptation design between the sockets and plugs ensures accurate and reliable connection. The built-in layout of the banana connector 3 allows it to complete signal transfer within the enclosed housing 21, avoiding the short circuit risk caused by exposed wire ends touching each other in traditional wiring methods. The entire system has a compact structure and a clear path. The signal flows sequentially through the signal test line 304, test line socket 12, banana connector 3, signal line socket 22, pin socket 25, and aviation plug 200 pin 202. Each link has a clear physical location and electrical connection guarantee, eliminating the path confusion and poor contact problems common in manual point-by-point wiring, and significantly improving the stability and reliability of opening and closing control and parameter acquisition.

[0044] The third aspect of this application, such as Figures 1-9As shown, an auxiliary wiring method for testing the mechanical characteristics of a circuit breaker is provided, applied to the auxiliary wiring system for testing the mechanical characteristics of a circuit breaker in the second aspect. The steps of the auxiliary wiring method for testing the mechanical characteristics of a circuit breaker include: Align the auxiliary wiring device 100 with the aviation plug 200 of the circuit breaker under test, and insert each pin 202 of the aviation plug 200 into the corresponding pin socket 25 on the housing 21 until the pin 202 and the banana connector 3 at the corresponding pin socket 25 are electrically connected. Rotate the locking device 201 of the aviation plug 200 so that the hook of the locking device 201 hooks the locking shaft 24 on the outside of the housing 21, and complete the locking and fixing of the auxiliary wiring device 100 and the aviation plug 200. Insert the signal test lines 304 corresponding to the closing control line 301, common control line 302 and opening control line 303 of the detector 300 into the test line sockets 12 of the cover plate mechanism 1 of the auxiliary wiring device 100 according to the markings, so that each signal test line 304 is electrically connected to the banana connector 3 at the corresponding position. The detector 300 is started, outputting control signals that are transmitted sequentially to the circuit breaker through the signal test line 304, test line socket 12, banana connector 3, signal line socket 22, pin socket 25 and the pin 202 of the aviation plug 200, triggering the circuit breaker to complete the opening and closing actions. At the same time, the mechanical characteristic parameters of the circuit breaker are collected and transmitted back to the detector 300. After the single-bay circuit breaker test is completed, loosen the locking device 201 and the locking shaft 24, remove the auxiliary wiring device 100, move it to the next bay circuit breaker to be tested, repeat the clamping and locking operation and complete the test. There is no need to repeatedly plug and unplug the signal test line 304 of the tester 300. After all circuit breakers under test have been tested, disconnect the signal test wire 304 from the test wire socket 12 on the cover plate, then loosen the locking device 201 and the locking shaft 24, and remove the auxiliary wiring device 100 from the aviation plug 200 to complete the system storage.

[0045] The auxiliary wiring method for testing the mechanical characteristics of circuit breakers provided in this embodiment first connects the auxiliary wiring device 100 to the aviation plug 200 of the circuit breaker under test in one go. Utilizing the guiding cooperation between the housing 21 pin socket 25 and the pin 202, and the quick locking of the locking device 201 and the locking shaft 24, both mechanical and electrical fixation of the device end is achieved. The entire operation is simple and smooth, requiring no additional tools, significantly shortening the time required for a single connection. Subsequently, the signal test lines 304 corresponding to the closing control line 301, common control line 302, and opening control line 303 of the tester 300 are inserted one-to-one into the test line sockets 12 on the cover plate according to their markings. Color coding allows for quick and accurate pairing, eliminating the tedious step of repeatedly checking the wire sequence during manual wiring and greatly reducing human errors such as incorrect or reversed connections. After starting the tester 300, the control signal is transmitted sequentially to the circuit breaker along a preset standard path, triggering… The circuit breaker operates with opening and closing actions while simultaneously acquiring mechanical characteristic parameters. The signal transmission path is controlled throughout and has no exposed contacts, ensuring the accuracy of test data and the safety of operators. It enables efficient switching in multi-interval rotation test scenarios. After a single-interval circuit breaker test is completed, simply loosen the locking device 201, remove the auxiliary wiring device 100, and move it to the next circuit breaker. Repeat the locking and clamping operations to continue the test. The signal test line 304 at the end of the detector 300 remains connected throughout the process without repeated plugging and unplugging, eliminating the repetitive work of rewiring each wire for each circuit breaker in the traditional method. This makes the batch testing rhythm more compact and smooth. After all tests are completed, disconnect the signal test line 304 in sequence, loosen the locking device 201, and remove the device for storage. The entire operation process achieves standardized control from preparation, execution to completion, significantly improving the work efficiency, operational safety, and result reliability of circuit breaker mechanical characteristic testing.

[0046] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An auxiliary wiring device for testing the mechanical characteristics of circuit breakers, characterized in that, include: Cover plate mechanism (1), the cover plate mechanism (1) includes a plate body (11), the plate body (11) is provided with a plurality of test line insertion holes (12) for signal test lines (304) to pass through. The housing mechanism (2) includes a housing (21) with an accommodating space inside. The cover mechanism (1) covers the top opening of the housing (21). The housing (21) has a plurality of pin holes (25) for electrical connection with the pins (202) of the aviation plug (200). The pin holes (25) and the test lead holes (12) are coaxially arranged and mutually adapted. The banana connector (3) is located between the test lead socket (12) and the pin socket (25). One end of the banana connector (3) is connected to the signal test lead (304) inserted into the test lead socket (12), and the other end is used to connect to the pin (202) of the aviation plug (200) passing through the pin socket (25), so as to realize the conduction between the tester (300) and the aviation plug (200) of the circuit breaker under test.

2. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 1, characterized in that, The bottom wall of the housing (21) is provided with several signal line sockets (22) for the signal lines of the aviation plug (200) to pass through. The banana connector (3) establishes a circuit connection with the pin (202) of the aviation plug (200) corresponding to the position of the pin socket (25) by the signal line passing through the signal line socket (22).

3. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 2, characterized in that, The banana connector (3) includes a banana female connector (31) and a banana male connector (32) that are matched and electrically connected to each other. The banana female connector (31) and the banana male connector (32) are fixed together by welding. The banana female connector (31) is used to connect to the plug of the signal test line (304) inserted into the test plug hole. The banana male connector (32) is used to connect to the pin (202) of the aviation plug (200) that passes through the pin hole (25).

4. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 3, characterized in that, The bottom of the accommodating space is provided with a limiting groove. The shape of the limiting groove is adapted to the shape of the banana connector (3). The banana connector (3) is embedded in the limiting groove to achieve positioning. The banana connector (3) is coaxially arranged with the corresponding test plug hole, signal plug hole and pin plug hole (25).

5. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 1, characterized in that, The housing mechanism (2) also includes two locking pivots (24) disposed opposite to each other on the outer side wall of the housing (21). The shape of the locking pivots (24) is adapted to the locking device (201) provided with the aviation plug (200). Through the cooperation of the locking pivots (24) and the locking device (201), the auxiliary wiring device (100) and the aviation plug (200) are locked and fixed.

6. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 5, characterized in that, The locking device (201) includes a rotatable hook that comes with the aviation plug (200). The hook has a hook groove and can be rotated so that the locking shaft (24) is embedded in the hook groove to achieve position locking.

7. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 1, characterized in that, The plate (11) is provided with a latch (13), and the shell (21) is provided with a slot (23) adapted to the latch (13). The latch (13) can be embedded in the slot (23) to realize the detachable connection between the cover plate mechanism (1) and the shell mechanism (2).

8. The auxiliary wiring device for testing the mechanical characteristics of a circuit breaker according to claim 1, characterized in that, Both the cover plate mechanism (1) and the outer shell mechanism (2) are made of insulating and flame-retardant materials, and the surface of the plate (11) is treated with anti-slip texture.

9. An auxiliary wiring system for testing the mechanical characteristics of circuit breakers, characterized in that, The device includes an auxiliary wiring device for testing the mechanical characteristics of a circuit breaker as described in any one of claims 1-8, and a tester (300). The tester (300) includes a closing control line (301), a common control line (302), and a tripping control line (303). The ends of the closing control line (301), the common control line (302), and the tripping control line (303) are all connected to signal test lines (304). The signal test lines (304) are inserted one by one into the test line sockets (12). The tester (300) sends control signals through the signal test lines (304), the test line sockets (12), the banana connector (3), the signal line sockets (22), the pin sockets (25), and the pins (202) of the aviation plug (200) to the circuit breaker under test, thereby realizing the opening and closing control and parameter acquisition.

10. An auxiliary wiring method for testing the mechanical characteristics of circuit breakers, characterized in that, The auxiliary wiring system for circuit breaker mechanical characteristic testing as described in claim 9, wherein the steps of the auxiliary wiring method for circuit breaker mechanical characteristic testing include: Align the auxiliary wiring device (100) with the aviation plug (200) of the circuit breaker under test, and insert each pin (202) of the aviation plug (200) into the corresponding pin socket (25) on the housing (21) until the pin (202) and the banana connector (3) at the corresponding pin socket (25) are electrically connected. Rotate the locking device (201) of the aviation plug (200) so that the hook of the locking device (201) hooks onto the locking shaft (24) on the outside of the housing (21) to complete the locking and fixing of the auxiliary wiring device (100) and the aviation plug (200). Insert the signal test lines (304) corresponding to the closing control line (301), common control line (302) and opening control line (303) of the detector (300) into the test line sockets (12) of the cover plate mechanism (1) of the auxiliary wiring device (100) one by one according to the markings, so that each signal test line (304) is electrically connected to the banana connector (3) at the corresponding position; The detector (300) is started, and the output control signal is transmitted to the circuit breaker in sequence through the signal test line (304), test line socket (12), banana connector (3), signal line socket (22), pin socket (25) and the pin (202) of the aviation plug (200), triggering the circuit breaker to complete the opening and closing action. At the same time, the mechanical characteristic parameters of the circuit breaker are collected and transmitted back to the detector (300). After the single-interval circuit breaker test is completed, loosen the locking device (201) and the locking shaft (24), remove the auxiliary wiring device (100), move it to the next interval circuit breaker to be tested, repeat the clamping and locking operation and complete the test. There is no need to repeatedly plug and unplug the signal test line (304) of the tester (300). After all the circuit breakers under test have been tested, unplug the signal test wire (304) in the test wire socket (12) of the cover plate, then loosen the locking device (201) and the locking shaft (24), and remove the auxiliary wiring device (100) from the aviation plug (200) to complete the system storage.

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