Frame circuit breaker controller-oriented test auxiliary device
By designing a test auxiliary device and utilizing components such as a host computer, data acquisition card, adapter board, and signal generator, the problems of time-consuming and incomplete manual testing of frame circuit breaker controllers were solved, and efficient and accurate automated testing was achieved.
Patent Information
- Application Number
- CN202520597749.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In the development of frame circuit breaker controllers, manual testing is time-consuming, incomplete, and lacks accuracy. It is also prone to wiring errors, which affects testing efficiency and progress.
A test auxiliary device for frame circuit breaker controllers was designed, including a host computer, a data acquisition card, a test adapter board, a power transmitter, and a function signal generator. These components generate and acquire the required voltage and current signals, simplify the wiring process, and realize automated detection of the controller status.
It simplifies the test wiring process, improves test efficiency and accuracy, ensures the comprehensiveness and accuracy of the test, reduces human error, and shortens the test cycle.
Smart Images
Figure CN223842348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frame circuit breaker technology, and in particular to a test auxiliary device for intelligent controllers of frame circuit breakers. Background Technology
[0002] The frame circuit breaker controller is the core control unit of the intelligent power distribution system, mainly used for power protection and control in medium-voltage / low-voltage power distribution networks. This device integrates sensors, a microprocessor, and a communication module to achieve real-time monitoring of circuit operating status, fault diagnosis, opening and closing operations, and data exchange.
[0003] Currently, in the research and development process of frame circuit breaker controllers, different models of frame controllers may only have slight changes in function, but testing needs to cover all aspects. The initial testing cycle of newly developed controllers is long, and there may be omissions in the project. After the same controller problem is fixed, manually testing only the modified item may miss other affected items.
[0004] For the reasons mentioned above, frequent testing is required during the development of the frame circuit breaker controller. Currently, the testing during the development process mainly relies on manual testing. Manual testing has many drawbacks and problems, such as long testing time, insufficient coverage, and low accuracy of test data.
[0005] Therefore, there is currently a lack of a testing auxiliary device for frame circuit breaker controllers to solve or partially solve the aforementioned problems. Utility Model Content
[0006] The purpose of this utility model is to overcome the defects of the existing technology and provide a test auxiliary device for frame circuit breaker controllers, so as to solve or partially solve the problems of manual test method wiring being unintuitive and prone to errors, which affects the test and R&D progress.
[0007] The objective of this utility model can be achieved through the following technical solutions:
[0008] This utility model provides a test auxiliary device for frame circuit breaker controllers, comprising:
[0009] Host computer;
[0010] The data acquisition card is connected to the host computer.
[0011] The test adapter board is connected to the host computer and the data acquisition card respectively. The test adapter board is also connected to the signal conditioning circuit and control chip in the circuit breaker controller of the frame under test.
[0012] The power transmitter is connected to the host computer, the data acquisition card, and the test adapter board, respectively.
[0013] The function signal generator is connected to the signal conditioning circuit in the circuit breaker controller of the tested frame.
[0014] As a preferred technical solution, the test adapter board is arrayed with multiple interfaces, including a controller power supply interface, an RS485 interface, a three-phase voltage signal interface, an output interface, and an input interface.
[0015] As a preferred technical solution, the interface also includes a closing interface and a tripping / fault interface.
[0016] As a preferred technical solution, the circuit breaker controller under test is connected to the test adapter plate through multiple detachable connectors, and the connectors are provided with text labels.
[0017] As a preferred technical solution, for the circuit breaker controller under test, the test adapter board is connected to the control chip through a signal conditioning circuit, a function circuit, and a first switch, and the function signal generator is connected to the control chip through a signal conditioning circuit and a second switch.
[0018] As a preferred technical solution, the test adapter plate is housed within the protective housing.
[0019] As a preferred technical solution, the data acquisition card includes an analog data acquisition card, a digital data acquisition card, and a timer / counter card.
[0020] As a preferred technical solution, the analog data acquisition card is a PCI-6289 analog data acquisition card, the digital data acquisition card is a PCI-6509 digital input / output card, and the timer / counter card is a PCI-6602 timer / counter card.
[0021] As a preferred technical solution, the power transmitter is a WB1876 power transmitter, which is connected to the host computer via an RS485 signal line.
[0022] As a preferred technical solution, the test adapter board is connected to the host computer via an RS485 signal line.
[0023] Compared with the prior art, the present invention has at least one of the following beneficial effects:
[0024] (1) Auxiliary detection of frame circuit breaker controller: This utility model provides a stable power supply to the test adapter board, data acquisition card and host computer platform by setting up a power transmitter. By setting up the host computer platform, test adapter board and function signal generator, the voltage and current required for testing can be generated. By setting up the data acquisition card, test adapter board and RS485 signal line, the status of the frame circuit breaker controller under test can be collected, thereby assisting in the detection.
[0025] (2) Simplified test wiring process: This utility model greatly simplifies the connection of voltage signal lines, controller power supply, RS485 and other interfaces by leading the connecting line out from the circuit breaker controller under test and connecting it to the test adapter board through a detachable connector. During the test, the tester can selectively connect the corresponding connector according to the test item, which simplifies the wiring work and improves the test efficiency. Attached Figure Description
[0026] Figure 1 This is a connection diagram of the test auxiliary device for the frame circuit breaker controller in the embodiment;
[0027] Figure 2 This is a schematic diagram of the test adapter board and its connection with the host computer, the circuit breaker controller of the frame under test, and the digital acquisition card in the embodiment.
[0028] Figure 3 This is a schematic diagram showing the connection between the test auxiliary device and the circuit breaker controller of the frame under test in the embodiment.
[0029] The components include: 1. Host computer; 2. Data acquisition card; 3. Test adapter board; 4. Circuit breaker controller under test; 5. Control chip; 6. Power transmitter; 7. Function signal generator; 8. Controller power supply interface; 9. RS485 interface; 10. Three-phase voltage signal interface; 11. Output interface; 12. Input interface; 13. Closing interface; 14. Opening / fault interface; 15. Connector; 16. Analog data acquisition card; 17. Digital data acquisition card; and 18. Timer / counter card. Detailed Implementation
[0030] 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, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 utility model. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0033] To address the problems existing in the prior art, this embodiment provides a test auxiliary device for frame circuit breaker controllers, see [link to relevant documentation]. Figure 1 The testing auxiliary device mainly includes a host computer 1, a data acquisition card 2, a test adapter board 3, a power transmitter 6, and a function signal generator 7.
[0034] (1) Host computer.
[0035] The host computer 1 can be a terminal device such as a computer or portable personal computer. At the hardware level, this electronic device includes a processor, internal bus, network interface, memory, and non-volatile memory, and may also include other hardware required for business operations. The processor reads the corresponding computer program from the non-volatile memory into memory and then runs it. Without conflict, the host computer 1 can also be implemented using a controller. The controller can be a mature and widely used MCU control module, PLC industrial control module, etc., or other existing control modules capable of implementing control functions and suitable for this embodiment. No restrictions are imposed here.
[0036] During testing, the host computer 1 is configured to generate the three-phase voltage signal required for the test, and transmit it to the signal conditioning circuit of the circuit breaker controller 4 under test via the test adapter board. After passing through the existing signal conditioning circuit and power circuit, the corresponding voltage is generated at the main circuit input terminal of the circuit breaker under test. At the same time, the voltage and current at the main circuit output terminal are collected through the test adapter board 3 and the data acquisition card 2. Preferably, the host computer platform is connected to the control chip of the circuit breaker controller 4 under test via an RS485 signal line and the test adapter board 3 for data exchange.
[0037] It should be noted that the computer program built into the host computer 1 is implemented using existing technology, and this utility model does not involve any methodological improvement.
[0038] (2) Data acquisition card.
[0039] Data acquisition card 2 is connected to host computer 1 and is used to acquire the voltage and current at the output terminal of the main circuit of the frame circuit breaker during testing. Preferably, it includes analog data acquisition card 16, digital data acquisition card 17 and timer / counter card 18. In this embodiment, analog data acquisition card 16 is a PCI-6289 analog data acquisition card, digital data acquisition card 17 is a PCI-6509 digital input / output card, and timer / counter card 18 is a PCI-6602 timer / counter card.
[0040] (3) Test the adapter board.
[0041] Test adapter board 3 is connected to both the host computer 1 and the data acquisition card 2. It is also connected to the signal conditioning circuit and control chip 5 in the circuit breaker controller 4 under test. Test adapter board 3 is connected to the host computer 1 via an RS485 signal line. As a bridge between the test auxiliary device and the circuit breaker controller 4 under test, test adapter board 3 is highly user-friendly and easy to wire. (See also...) Figure 2 This is a schematic diagram of the test adapter board 3 and its connection with the host computer 1, the circuit breaker controller 4 under test, and the digital acquisition card 2 in the embodiment. The lines between the test adapter board 3 and the host computer 1 and the digital acquisition card 2 have been pre-connected before the test. The connection between the test adapter board 3 and the circuit breaker controller 4 under test uses a detachable connector 15. Preferably, the connector 15 is provided with text labels that distinguish the interface number and / or interface name of different connectors. During the test, the tester can connect some or all of the interfaces according to the actual test requirements.
[0042] Specifically, the interfaces include a controller power supply interface 8, an RS485 interface 9, a three-phase voltage signal interface 10, an output interface 11, and an input interface 12, as well as a closing interface 13 and a tripping / fault interface 14.
[0043] Preferably, the test adapter board 3 is housed inside the protective housing, and is opened when connecting or disconnecting the circuit, and closed at other times to prevent dust and debris from entering and affecting the conductivity of the interface.
[0044] (4) Power transmitter.
[0045] The power transmitter 6 is connected to the host computer 1, the data acquisition card 2, and the test adapter board 3, respectively, and is used to power the test auxiliary device. In this embodiment, the power transmitter 6 is a WB1876 power transmitter, and the power transmitter 6 is connected to the host computer 1 via an RS485 signal line. It can also be powered by other commercially available power supplies if there is no conflict.
[0046] Preferably, the WB1876 power transmitter is also connected to the host computer 1 via an RS485 signal line, which can collect the power supply status in real time and measure parameters such as phase voltage, line voltage, current, active power, reactive power, apparent power, power factor, frequency, total active power, total reactive power, total apparent power, and electrical energy of the three-phase four-wire circuit in real time, which can facilitate the test personnel to monitor the power supply operation.
[0047] (5) Function signal generator.
[0048] The function signal generator 7 is connected to the signal conditioning circuit in the circuit breaker controller 4 under test. It is used to generate four-phase current signals Ia, Ib, Ic, and Id to the conditioning circuit of the circuit breaker 4 under test according to the test requirements, so as to generate corresponding currents in the main circuit and simulate the load conditions of the circuit breaker.
[0049] In the circuit breaker controller 4 under test, the test adapter board 3 is connected to the control chip 5 through the signal conditioning circuit, the function circuit and the first switch, and the function signal generator 7 is connected to the control chip 5 through the signal conditioning circuit and the second switch.
[0050] See Figure 3This diagram illustrates the connection between the auxiliary device and the controller of the circuit breaker under test (4). During testing, interfaces J1 and J2 are closed. The auxiliary device generates voltage signals Ua, Ub, Uc, and GND via the voltage signal output from the PCI6289 in the data acquisition card of the host computer platform 1 and the test adapter board 3. After signal conditioning and power amplification, the corresponding actual voltages are generated. These, along with the actual current generated by the four-phase current signal from the function signal generator 7, are applied to the main circuit of the circuit breaker under test (4). Subsequently, the status of the circuit breaker under test (4), such as whether it is closed, in protection mode, or experiencing a fault, is acquired via the test adapter board 3-data acquisition card 2-host computer platform 1, or via the test adapter board 3-RS485 signal line-host computer platform 1. This facilitates auxiliary testing. This device can be used to verify functions such as relay protection, measurement and control, and alarms. By simulating the working environment of the circuit breaker, it comprehensively tests the performance and reliability of the controller.
[0051] For example, given a current of 945A, the actual current of the main circuit is measured, and the result is determined as pass / fail after comparison with the required accuracy of ±5%.
[0052] For example, with a set current of 3000A and a set time of 0.4s for A2.2.2, the test auxiliary device is activated, and the circuit breaker controller under test starts working. After 0.4s, the trip unit trips, indicating that the function can operate normally in short-delay protection with a time of 0.4s.
[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A test auxiliary device for frame circuit breaker controllers, characterized in that, include: Host computer (1); Data acquisition card (2) is connected to the host computer (1); The test adapter board (3) is connected to the host computer (1) and the data acquisition card (2) respectively. The test adapter board (3) is also connected to the signal conditioning circuit and control chip (5) in the circuit breaker controller (4) of the test frame. The power transmitter (6) is connected to the host computer (1), the data acquisition card (2) and the test adapter board (3) respectively; The function signal generator (7) is connected to the signal conditioning circuit in the circuit breaker controller (4) of the frame under test.
2. The test auxiliary device for frame circuit breaker controllers according to claim 1, characterized in that, The test adapter board (3) is arrayed with multiple interfaces, including a controller power supply interface (8), an RS485 interface (9), a three-phase voltage signal interface (10), an output interface (11), and an input interface (12).
3. The test auxiliary device for frame circuit breaker controllers according to claim 2, characterized in that, The interface also includes a closing interface (13) and a tripping / fault interface (14).
4. A test auxiliary device for frame circuit breaker controllers according to claim 2, characterized in that, The circuit breaker controller (4) under test is connected to the test adapter plate (3) through multiple detachable connectors (15), and the connectors (15) are provided with text labels.
5. A test auxiliary device for frame circuit breaker controllers according to claim 1, characterized in that, For the circuit breaker controller (4) under test, the test adapter board (3) is connected to the control chip (5) through the signal conditioning circuit, the function circuit and the first switch, and the function signal generator (7) is connected to the control chip (5) through the signal conditioning circuit and the second switch.
6. A test auxiliary device for frame circuit breaker controllers according to claim 1, characterized in that, The test adapter plate (3) is set inside the protective housing.
7. A test auxiliary device for frame circuit breaker controllers according to claim 1, characterized in that, The data acquisition card (2) includes an analog data acquisition card (16), a digital data acquisition card (17), and a timer / counter card (18).
8. A test auxiliary device for a frame circuit breaker controller according to claim 7, characterized in that, The analog data acquisition card (16) is a PCI-6289 analog data acquisition card, the digital data acquisition card (17) is a PCI-6509 digital input / output card, and the timer / counter card (18) is a PCI-6602 timer / counter card.
9. A test auxiliary device for a frame circuit breaker controller according to claim 1, characterized in that, The power transmitter (6) is a WB1876 power transmitter, and the power transmitter (6) is connected to the host computer (1) via an RS485 signal line.
10. A test auxiliary device for frame circuit breaker controllers according to claim 1, characterized in that, The test adapter board (3) is connected to the host computer (1) via an RS485 signal line.