A primary and secondary complete column circuit breaker control loop detection circuit and method
Patent Information
- Application Number
- CN202611319331.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-28
- Publication Date
- 2026-10-20
AI Technical Summary
在一二次成套柱断出厂调试时，需要单独对控制回路进行调试，验证控制回路功能是否正常，然而过于宽泛的供电电压需要工作人员频繁进行电压切换，单一的控制回路调试需要工作人员通过测试台单独测试，过程繁琐、重复性强、效率低
[0027]本申请通过电源管理模块将输入的不同种类电压信号进行统一，并能够输出宽范围可调节直流电压，实现了对配电现场下不同交直流电压等级的覆盖，提高了对控制回路进行检测的便捷性和测试效率；利用控制回路状态指示模块将输入信号触发模块输出的控制回路状态信息进行可视化处理，简化了操作人员的测试步骤，提高了控制回路的运维效率。本申请检测装置接口与控制回路接口对应，降低了工作人员操作要去，提高了一二次成套柱断出厂测试的效率。
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Abstract
Description
Technical Field
[0001] This application belongs to the field of detection circuit technology, specifically relating to a detection circuit and method for the control circuit of a primary and secondary complete pole-mounted circuit breaker. Background Technology
[0002] Primary and secondary pole-mounted circuit breakers, or "primary and secondary pole-mounted circuit breakers" for short, possess functions such as remote signaling, remote measurement, remote control, and fault diagnosis. They monitor the line's operating status in real time and are a key component in building distribution automation systems and improving the reliability of power distribution networks. The AC / DC control circuits of primary and secondary pole-mounted circuit breakers include status acquisition circuits, such as switch position signal input circuits, and execution control circuits, which are relay output circuits. Depending on the application requirements, the control circuits are typically designed for either AC or DC power supply. AC control circuits use AC220V, while DC control circuits use various DC voltage levels such as DC24V, DC48V, DC110V, and DC220V, resulting in an overly broad voltage range. During factory commissioning of primary and secondary pole-mounted circuit breakers, the control circuits need to be individually tested to verify their functionality. However, the overly broad voltage range requires frequent voltage switching by personnel, and individual control circuit testing requires separate testing on a test bench, a tedious, repetitive, and inefficient process. Summary of the Invention
[0003] The purpose of this application is to provide a detection circuit and method for the control circuit of a primary and secondary pole-mounted circuit breaker, which achieves full coverage testing of the control circuit of the pole-mounted circuit breaker by integrating the detection functions of AC and DC circuits.
[0004] To achieve the above objectives, this application employs the following technical solution.
[0005] In a first aspect, the present invention provides a detection circuit for the control circuit of a primary and secondary pole-mounted circuit breaker, comprising: a power management module, an input signal triggering module, and a control circuit status indication module;
[0006] The power management module is connected to the power supply unit and is used to modulate the power signal input by the power supply into a power supply voltage signal, and use the power supply voltage signal to power the control loop status indication module; the input terminal of the power management module is connected to the circuit breaker closing terminal and the circuit breaker opening terminal respectively, and is used to modulate the first opening and closing power signal of the circuit breaker into a second opening and closing power signal adapted to the input signal triggering module.
[0007] The input signal triggering module is connected to the control loop and is used to collect control loop data, generate a control loop status signal based on the control loop data and the second opening and closing power supply signal, and send the control loop status signal to the control loop status indication module.
[0008] The control loop status indication module is connected to the input signal triggering module and is used to visually represent the control loop status signal.
[0009] Optionally, the power management module includes a full-wave rectifier submodule and a converter submodule;
[0010] The full-wave rectifier submodule is used to modulate the input power signal into a DC power signal or to modulate the first opening and closing power signal into a DC first opening and closing power signal.
[0011] The converter submodule is connected to the full-wave rectifier submodule and is used to modulate the DC power supply signal into a power supply voltage signal or to modulate the first DC opening and closing power supply signal into a second opening and closing power supply signal.
[0012] Optionally, the power management module further includes a pre-stage protection sub-module; the pre-stage protection sub-module includes a power resistor and a varistor;
[0013] The power resistor is connected in series to the AC input terminal of the full-wave rectifier submodule; the varistor is connected in parallel to the AC input terminal of the full-wave rectifier submodule.
[0014] Optionally, the power management module further includes a filtering submodule; the full-wave rectifier submodule is connected to the converter submodule through the filtering submodule.
[0015] Optionally, the power management module further includes a reverse cutoff diode, the positive terminal of which is connected to the full-wave rectifier submodule, and the negative terminal of which is connected to the converter submodule.
[0016] Optionally, the control circuit status signals include manual tripping signal, manual closing signal, protection tripping signal, protection closing signal, control circuit disconnection signal, closing signal, and opening signal.
[0017] Optionally, the input signal triggering module includes a manual opening and closing signal triggering submodule and a protection opening and closing signal triggering submodule;
[0018] The manual opening and closing signal triggering submodule is used to generate manual opening signals and manual closing signals based on control circuit data and the second opening and closing power supply signal.
[0019] The protection tripping and closing signal triggering submodule is used to generate protection tripping signals and protection closing signals based on control circuit data and the second tripping and closing power supply signals.
[0020] Optionally, the input signal triggering module further includes an anti-bounce signal triggering submodule for filtering the control loop status signal.
[0021] In a second aspect, the present invention provides a method for detecting the control circuit of a primary and secondary pole-mounted circuit breaker assembly, employing any of the primary and secondary pole-mounted circuit breaker control circuit detection circuits described in the first aspect above, the method comprising:
[0022] When the control circuit controls the circuit breaker to operate according to the input opening and closing input signal, the power management module modulates the first opening and closing power signal of the circuit breaker into the second opening and closing power signal that is compatible with the input signal triggering module.
[0023] Based on the second opening and closing power supply signal, the control loop status signal is generated by the input signal trigger module.
[0024] The power management module generates a power supply voltage signal based on the power input signal from the power supply, and then uses the power supply voltage signal to power the control loop status indication module.
[0025] The control loop status signal is visualized using the control loop status indication module to obtain the control loop detection result.
[0026] Compared with the prior art, the beneficial effects achieved by this application are as follows:
[0027] This application unifies different types of input voltage signals through a power management module and can output a wide-range adjustable DC voltage, achieving coverage of different AC and DC voltage levels in power distribution sites. This improves the convenience and efficiency of control circuit testing. The control circuit status indicator module visualizes the control circuit status information output by the input signal trigger module, simplifying the testing steps for operators and improving the operation and maintenance efficiency of the control circuit. The testing device interface corresponds to the control circuit interface, reducing the workload for operators and improving the efficiency of primary and secondary complete set of column failure factory testing. Attached Figure Description
[0028] Figure 1 The diagram shown is a schematic of the system architecture of the power switching device of this application;
[0029] Figure 2 The diagram shown is a schematic of the power management module circuit design of this application;
[0030] Figure 3 The diagram shown is a schematic of the operation of the input signal triggering module in this application.
[0031] Figure 4 The diagram shown is a schematic of the circuit design of the control loop status indication module of this application;
[0032] Figure 5 The diagram shown is a wiring diagram for the device application of this application. Detailed Implementation
[0033] The technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of this application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.
[0034] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0035] Example 1
[0036] This embodiment describes a detection circuit for the control circuit of a primary and secondary complete pole-mounted circuit breaker, specifically including: a power management module, an input signal triggering module, and a control circuit status indication module;
[0037] The connection relationships of the above modules are as follows: Figure 1 As shown, the power management module is connected to the power supply unit and is used to modulate the power signal input from the power supply into a power supply voltage signal, and use the power supply voltage signal to power the control loop status indication module. The power management module can convert the input DC / AC power signal into a unified DC power signal and can regulate the voltage of the DC signal, preferably within a DC range of 24V~220V, which can adapt to most power supply requirements. Furthermore, the power management module is used to connect the primary side switch closing position to the input signal triggering module, such as... Figure 3 The diagram shows the power management module for the closing coil. Similarly, this power management module is also used to connect the primary-side switch's open position to the input signal triggering module, serving as the power management module for the opening coil; in this application, the primary-side switch is a circuit breaker. The power management module can convert various power signals into power signals compatible with the input signal triggering module, ensuring wide coverage of the power distribution site. In this embodiment, the power management modules for the closing coil and the opening coil modulate the circuit breaker's first opening / closing power signal into a second opening / closing power signal compatible with the input signal triggering module.
[0038] In this embodiment, the input signal triggering module consists of a DC12V magnetic latching relay with an independent DC12V power supply circuit. It allows for manual input of closing or opening signals, and the control circuit controls the circuit breaker to execute the operation, outputting the control circuit status as follows. Figure 3As shown, the input signal triggering module is connected to the control loop, used to collect control loop data, and generate a control loop status signal based on the control loop data and the second opening and closing power supply signal, and send the control loop status signal to the control loop status indication module.
[0039] The control loop status indicator module is connected to the input signal trigger module and is used to visually represent the control loop status signals. The control loop status signals include manual tripping signal, manual closing signal, protection tripping signal, protection closing signal, control loop disconnection signal, closing signal, and opening signal. In this embodiment, multiple indicator lights are used for visual representation.
[0040] In summary, this embodiment unifies different types of input voltage signals through the power management module, improving the convenience and efficiency of testing the control circuit, simplifying the testing steps for operators, and improving the operation and maintenance efficiency of the control circuit.
[0041] Example 2
[0042] This embodiment describes a detection circuit for the control circuit of a primary and secondary pole-mounted circuit breaker, specifically including:
[0043] The power management module is connected to the power supply unit and is used to modulate the power signal input by the power supply into a power supply voltage signal, and use the power supply voltage signal to power the control loop status indication module. The input terminals of the power management module are connected to the closing and opening terminals of the circuit breaker, respectively, and are used to modulate the first opening / closing power signal of the circuit breaker into a second opening / closing power signal adapted to the input signal trigger module. The power management module includes a full-wave rectifier submodule and a converter submodule. The full-wave rectifier submodule is used to modulate the input power signal into a DC power signal or to modulate the first opening / closing power signal into a DC first opening / closing power signal. The converter submodule is connected to the full-wave rectifier submodule and is used to modulate the DC power signal into a power supply voltage signal or to modulate the DC first opening / closing power signal into a second opening / closing power signal. Figure 2 As shown, the power management module also includes a pre-stage protection sub-module; the pre-stage protection sub-module includes a power resistor and a varistor; the power resistor is connected in series to the AC input terminal of the full-wave rectifier sub-module; the varistor is connected in parallel to the AC input terminal of the full-wave rectifier sub-module.
[0044] The power management module also includes a filtering submodule; the full-wave rectifier submodule is connected to the converter submodule through the filtering submodule. The power management module also includes a reverse cutoff diode, with its anode connected to the full-wave rectifier submodule and its cathode connected to the converter submodule.
[0045] The input signal triggering module is connected to the control loop and is used to collect control loop data. Based on the control loop data and the second opening and closing power supply signal, it generates a control loop status signal and sends the control loop status signal to the control loop status indication module. The input signal triggering module includes a manual opening and closing signal triggering submodule and a protection opening and closing signal triggering submodule.
[0046] The manual tripping and closing signal triggering submodule is used to generate manual tripping and manual closing signals based on control circuit data and the second tripping and closing power supply signal. The protection tripping and closing signal triggering submodule is used to generate protection tripping and protection closing signals based on control circuit data and the second tripping and closing power supply signal. The input signal triggering module also includes an anti-pumping signal triggering submodule for filtering the control circuit status signal.
[0047] like Figure 4 As shown, the control loop status indicator module is connected to the input signal trigger module and is used to visually represent the control loop status signals. The control loop status indicator module is used to detect the control loop execution output status, including manual tripping signal, manual closing signal, protection tripping signal, protection closing signal, closing position signal, opening position signal, control loop disconnection signal, etc. The common terminal of the output signal is connected to the DC12V power supply output terminal, and the output signal terminal is connected to the signal terminal of the primary and secondary complete set AC / DC control loop.
[0048] In this embodiment, the external interfaces of the primary and secondary complete circuit breaker control loop detection circuit with wide-range voltage input correspond one-to-one with the external interfaces of the control loop. During wiring, simply connect the corresponding interfaces. In application, this patented detection device has manual input opening and closing control functions, eliminating the need for external simulated circuit breakers and test benches. The device is applied as follows... Figure 5 As shown, the AC / DC control circuit detection device with a wide range of voltage input is connected to the interface of the AC / DC control circuit of the power distribution terminal.
[0049] Example 3
[0050] This embodiment describes a method for detecting the control circuit of a primary and secondary pole-mounted circuit breaker assembly. It employs the detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker assembly described in Embodiment 1 above. The method includes:
[0051] The opening and closing input signals include opening input signals and closing input signals. The opening and closing input signals can be manually input or output to the control circuit through a set program.
[0052] When the control circuit controls the circuit breaker to operate according to the input opening and closing input signal, the power management module modulates the first opening and closing power signal of the circuit breaker into the second opening and closing power signal that is compatible with the input signal triggering module.
[0053] Based on the second opening and closing power supply signal, the control loop status signal is generated by the input signal trigger module.
[0054] The power management module generates a power supply voltage signal based on the power input signal from the power supply, and then uses the power supply voltage signal to power the control loop status indication module.
[0055] The control loop status signal is visualized using the control loop status indication module to obtain the control loop detection result.
[0056] The specific functions of each module are implemented with reference to the relevant content in the method of Embodiment 1, and will not be repeated here. It should be noted that the control loop detection results are only preferably represented by visualization.
[0057] Those skilled in the art will understand that 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-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0058] 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 will 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, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0059] These 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 function 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 function specified in one or more boxes.
[0060] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0061] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.
Claims
1. A detection circuit for the control circuit of a primary and secondary pole-mounted circuit breaker, characterized in that, include: Power management module, input signal triggering module, control loop status indication module; The power management module is connected to the power supply unit and is used to modulate the power signal input by the power supply into a power supply voltage signal, and use the power supply voltage signal to power the control loop status indication module; the input terminal of the power management module is connected to the circuit breaker closing terminal and the circuit breaker opening terminal respectively, and is used to modulate the first opening and closing power signal of the circuit breaker into a second opening and closing power signal adapted to the input signal triggering module. The input signal triggering module is connected to the control loop and is used to collect control loop data, generate a control loop status signal based on the control loop data and the second opening and closing power supply signal, and send the control loop status signal to the control loop status indication module. The control loop status indication module is connected to the input signal triggering module and is used to visually represent the control loop status signal.
2. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that, The power management module includes a full-wave rectifier submodule and a converter submodule; The full-wave rectifier submodule is used to modulate the input power signal into a DC power signal or to modulate the first opening and closing power signal into a DC first opening and closing power signal. The converter submodule is connected to the full-wave rectifier submodule and is used to modulate the DC power supply signal into a power supply voltage signal or to modulate the first DC opening and closing power supply signal into a second opening and closing power supply signal.
3. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that, The power management module also includes a front-end protection submodule; the front-end protection submodule includes a power resistor and a varistor; The power resistor is connected in series to the AC input terminal of the full-wave rectifier submodule; the varistor is connected in parallel to the AC input terminal of the full-wave rectifier submodule.
4. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that, The power management module also includes a filtering submodule; the full-wave rectifier submodule is connected to the converter submodule through the filtering submodule.
5. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that, The power management module also includes a reverse cutoff diode, the positive terminal of which is connected to the full-wave rectifier submodule, and the negative terminal of which is connected to the converter submodule.
6. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that, The control circuit status signals include manual tripping signal, manual closing signal, protection tripping signal, protection closing signal, control circuit disconnection signal, closing signal, and opening signal.
7. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 6, characterized in that, The input signal triggering module includes a manual opening and closing signal triggering submodule and a protection opening and closing signal triggering submodule; The manual opening and closing signal triggering submodule is used to generate manual opening signals and manual closing signals based on control circuit data and the second opening and closing power supply signal. The protection tripping and closing signal triggering submodule is used to generate protection tripping signals and protection closing signals based on control circuit data and the second tripping and closing power supply signals.
8. The detection circuit for the control circuit of the primary and secondary pole-mounted circuit breaker according to claim 7, characterized in that, The input signal triggering module also includes an anti-jump signal triggering submodule for filtering the control loop status signal.
9. A method for detecting the control circuit of a primary and secondary pole-mounted circuit breaker, characterized in that, The method, employing the primary and secondary complete pole-mounted circuit breaker control circuit detection circuit as described in any one of claims 1 to 8, comprises: When the control circuit controls the circuit breaker to operate according to the input opening and closing input signal, the power management module modulates the first opening and closing power signal of the circuit breaker into the second opening and closing power signal that is compatible with the input signal triggering module. Based on the second opening and closing power supply signal, the control loop status signal is generated by the input signal trigger module. The power management module generates a power supply voltage signal based on the power input signal from the power supply, and then uses the power supply voltage signal to power the control loop status indication module. The control loop status signal is visualized using the control loop status indication module to obtain the control loop detection result.