Opening and closing control box with fault self-checking, warning and uploading functions

Abstract

The invention relates to the technical field of distribution network automation, and discloses a switch-on and switch-off control box with a fault self-checking, warning and uploading function, which can monitor the current state of a switch-on and switch-off loop in real time and find out the abnormity of the loop in time by adding a jump relay monitoring loop and a switch-on relay monitoring loop. The fault alarm module can rapidly trigger an alarm signal when monitoring an abnormity, and the alarm signal is accessed to the distribution automation terminal through the signal transmission module, and then is sent to a distribution network master station through the terminal, thereby achieving the rapid positioning and alarm of a fault. According to the mode, the troubleshooting efficiency is improved, the workload and the time cost of operation and maintenance personnel are reduced, the reliability and the stability of the distribution network automation system are enhanced, the risk of refusing to operate the switch caused by the fault of the control box is effectively reduced, and the stable operation of the distribution network is ensured.

Description

Technical Field

[0001] This invention relates to the field of power distribution automation technology, and in particular to a circuit breaker control box with fault self-testing and alarm transmission function. Background Technology

[0002] In recent years, the number of distribution network automation terminals has been increasing, and the effectiveness of distribution network self-healing and power restoration has been improving year by year. Some existing automation terminals have circuit breakers connected in series with control boxes to control the opening and closing of circuit breakers. However, after more than 3 years of operation, control box failures have gradually emerged, causing switches to fail to operate.

[0003] Control boxes are typically installed in the junction box mechanism compartment and are used to operate the opening and closing coils of the switches, thus actuating the operating mechanism. They lack monitoring functionality for the operating circuit. If a control circuit malfunctions, the primary troubleshooting method is for the distribution network maintenance team to conduct regular offline inspections. This method is inefficient; a single junction box has four mechanism compartments, each secured by four screws. Each inspection requires removing all four compartment doors to check the indicator lights on the opening and closing control box, and then closing the doors again. Given the dispersed locations of distribution network automation terminals, conducting regular offline inspections of the control boxes consumes a significant amount of maintenance time.

[0004] Therefore, improvements to existing technologies are necessary.

[0005] The above information is provided as background information only to aid in understanding the present invention, and does not constitute an assertion or admission that any of the above content can be used as prior art relative to the present invention. Summary of the Invention

[0006] This invention provides a circuit breaker control box with fault self-testing and alarm transmission function to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A circuit breaker control box with fault self-testing and alarm transmission function includes:

[0009] The main body of the control box is used to control the opening and closing operations of the circuit breaker;

[0010] The trip relay monitoring circuit is used to monitor the current in the tripping circuit and determine whether the tripping circuit is normal.

[0011] The closing relay monitoring circuit is used to monitor the current in the closing circuit and determine whether the closing circuit is normal.

[0012] The fault alarm module is used to trigger a fault alarm signal when an abnormality is detected in the opening and closing circuit;

[0013] The signal transmission module connects the fault alarm signal to the distribution automation terminal, and the distribution automation terminal sends the fault alarm signal to the distribution network master station.

[0014] Furthermore, in the circuit breaker control box with fault self-testing and alarm transmission function, the trip relay monitoring circuit and the close relay monitoring circuit determine whether the corresponding circuit is normal by monitoring the weak current in the corresponding circuit.

[0015] Furthermore, in the circuit breaker control box with fault self-testing and alarm transmission function, the fault alarm module includes an alarm indicator light and an alarm signal output interface. When an abnormality is detected in the circuit breaker, the alarm indicator light illuminates, and a fault alarm signal is output through the alarm signal output interface.

[0016] Furthermore, in the circuit breaker control box with fault self-checking and alarm transmission function, the signal transmission module includes a signal conversion circuit and a communication interface. The signal conversion circuit converts the fault alarm signal into a signal format suitable for the distribution automation terminal to receive, and the communication interface is used to connect the converted signal to the distribution automation terminal.

[0017] Furthermore, the circuit breaker control box with fault self-test alarm transmission function also includes a self-test circuit. The self-test circuit is used to periodically detect the internal circuit status of the control box body. When a fault is detected, it triggers the fault alarm module.

[0018] Furthermore, in the circuit breaker control box with fault self-test alarm transmission function, both the trip relay monitoring circuit and the close relay monitoring circuit have built-in filter circuits, which are used to filter out noise signals in the weak current.

[0019] Furthermore, the circuit breaker control box with fault self-testing and alarm transmission function also includes a power supply module, which provides a stable power supply for the control box body, the trip relay monitoring circuit, the close relay monitoring circuit, the fault alarm module, and the signal transmission module.

[0020] Furthermore, the circuit breaker control box with fault self-test alarm transmission function also includes a signal amplification circuit, which is used to amplify the fault alarm signal to ensure the stability and reliability of the signal during transmission.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention provides a circuit breaker control box with fault self-checking and alarm transmission functions. By adding trip relay monitoring circuits and close relay monitoring circuits, it can monitor the current status of the circuit breaker and close circuits in real time and promptly detect circuit anomalies. The fault alarm module can quickly trigger an alarm signal when an anomaly is detected, and connect the alarm signal to the distribution automation terminal through the signal transmission module. The terminal then sends the signal to the distribution network master station, achieving rapid fault location and alarm. This approach not only improves the efficiency of fault diagnosis and reduces the workload and time costs of maintenance personnel, but also enhances the reliability and stability of the distribution network automation system, effectively reducing the risk of switch failure due to control box malfunctions and ensuring the stable operation of the distribution network.

[0023] The present invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and following detailed description, which together serve to explain the particular principles of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This invention provides a circuit breaker control box with fault self-testing and alarm transmission function.

[0026] Figure label:

[0027] The control box body 1, the trip relay monitoring circuit 2, the close relay monitoring circuit 3, the fault alarm module 4, and the signal transmission module 5. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please refer to Figure 1 This invention provides a circuit breaker control box with fault self-testing and alarm transmission function. The circuit breaker control box consists of several key parts, as detailed below:

[0030] The main body of the control box 1, as the core component of the entire control box, bears the important responsibility of controlling the circuit breaker to perform opening and closing operations. By receiving and executing relevant commands, it precisely controls the operation of the circuit breaker, ensuring that the power system can accurately and reliably complete the corresponding operations when opening or closing is required, thereby guaranteeing the stability and security of power transmission and distribution.

[0031] The trip relay monitoring circuit 2 is specifically designed for real-time monitoring of the current in the tripping circuit. During power system operation, the normal operation of the tripping circuit directly affects whether the circuit breaker can trip smoothly when needed to interrupt fault current or perform normal equipment operation. This monitoring circuit continuously monitors the current parameters of the tripping circuit and accurately determines whether the tripping circuit is in normal working condition based on a preset normal current range. Once an abnormal current is detected, a timely warning can be issued, providing crucial information for subsequent fault diagnosis and handling.

[0032] The function of the closing relay monitoring circuit 3 is similar to that of the trip relay monitoring circuit 2, but its monitoring object is the current in the closing circuit. The closing circuit is crucial for the closing operation of the circuit breaker, ensuring that the circuit breaker can reliably close and restore the circuit to its normal conducting state when power supply needs to be restored or equipment needs to be put into operation. The closing relay monitoring circuit 3 monitors the current in the closing circuit in real time and determines whether the closing circuit is working properly according to established judgment criteria. If an abnormal current is detected, it can also react quickly, providing a guarantee for the stable operation of the system.

[0033] The fault alarm module 4 is a crucial component of the entire circuit breaker control box, issuing warnings when abnormal conditions are detected. When the trip relay monitoring circuit 2 or the close relay monitoring circuit 3 detects an abnormality in the circuit breaker, the fault alarm module 4 will immediately trigger a fault alarm signal. This timely triggering of the signal can quickly notify relevant maintenance personnel or system monitoring personnel, informing them of the system fault and enabling them to take timely countermeasures to prevent further escalation and deterioration of the fault.

[0034] Signal transmission module 5 is responsible for accurately transmitting the fault alarm signal triggered by fault alarm module 4 to the distribution automation terminal. As a crucial component of the distribution network automation system, the distribution automation terminal possesses multiple functions, including data acquisition, processing, and transmission. After transmitting the fault alarm signal to the distribution automation terminal, the signal transmission module 5 further processes and analyzes the signal before sending it to the distribution network master station. The distribution network master station, as the command center of the entire distribution network automation system, receives signals from various terminals and centrally manages and analyzes these signals, thereby achieving comprehensive monitoring of the distribution network's operating status and rapid fault location.

[0035] This invention, through the addition of a trip relay monitoring circuit 2 and a closing relay monitoring circuit 3 to the opening and closing control box, achieves real-time and accurate monitoring of the current status of the opening and closing circuits. This real-time monitoring mechanism can promptly detect any abnormalities that occur during the operation of the opening and closing circuits, whether due to equipment aging, poor contact, or other reasons, all of which can be detected immediately.

[0036] When the fault alarm module 4 detects an abnormality in the opening and closing circuit, it can quickly trigger an alarm signal and accurately transmit the alarm signal to the distribution automation terminal via the signal transmission module 5. Upon receiving the alarm signal, the distribution automation terminal will send it to the distribution network master station according to a preset procedure. By analyzing and processing these alarm signals, the distribution network master station can quickly locate the position and nature of the fault, thereby providing maintenance personnel with accurate fault information and guiding them in targeted troubleshooting and repair work.

[0037] This self-diagnostic and alarm reporting method has significant advantages. It not only greatly improves the efficiency of fault diagnosis, enabling maintenance personnel to discover and handle faults in the shortest possible time, reducing power outages and economic losses caused by prolonged fault diagnosis; but also effectively reduces the workload and time costs for maintenance personnel, avoiding blind inspections of a large number of devices and improving the focus and effectiveness of the work.

[0038] Meanwhile, this method also significantly enhances the reliability and stability of the distribution network automation system. By promptly detecting and handling faults in the opening and closing circuits, serious problems such as switch failure due to control box malfunctions can be effectively avoided. Switch failure can trigger a chain reaction of power system failures, posing a significant threat to the safe and stable operation of the power grid. The opening and closing control box provided in this embodiment of the invention can effectively reduce this risk, ensuring the stable and reliable operation of the distribution network under various operating conditions, and providing high-quality power supply to power users.

[0039] In one specific implementation presented in this embodiment, the trip relay monitoring circuit 2 and the close relay monitoring circuit 3 employ high-precision monitoring technology. By monitoring the weak current present in the corresponding circuits in real time and accurately, and based on a pre-set normal current range threshold and scientific judgment logic, the system accurately determines whether the corresponding circuit is in normal working condition. This monitoring method can keenly capture subtle changes in the current in the circuit; even extremely small abnormal fluctuations cannot escape its monitoring "eyes," thus providing a reliable basis for timely detection of potential circuit faults.

[0040] In another specific embodiment of this invention, the fault alarm module 4 is more sophisticated and fully functional, encompassing two key components: an alarm indicator light and an alarm signal output interface. During monitoring of the opening and closing circuit, once an abnormality is detected, the alarm indicator light will immediately respond by flashing or remaining constantly lit, providing a visual warning to on-site maintenance personnel. Simultaneously, the alarm signal output interface will activate, accurately outputting fault alarm signals according to established signal transmission protocols and specifications, ensuring that relevant information is transmitted to subsequent processing stages in a timely and effective manner.

[0041] In another specific embodiment of this invention, the signal transmission module 5 possesses comprehensive signal processing and transmission functions, internally including a signal conversion circuit and a communication interface. The signal conversion circuit plays a crucial role in format conversion of fault alarm signals. It accurately converts the original fault alarm signals according to the signal format requirements that the distribution automation terminal can receive, making them suitable for the terminal's reception and processing. The communication interface acts as a bridge for signal transmission, ensuring the stable and reliable connection of the converted signals to the distribution automation terminal, guaranteeing that the signals are not subject to external interference during transmission and can reach their destination completely and accurately.

[0042] In another specific embodiment of this invention, the circuit breaker control box with fault self-check and alarm transmission function is further equipped with a self-check circuit. This self-check circuit has an intelligent function of periodic automatic detection, which performs a comprehensive and detailed check of the internal circuit status of the control box body 1. During the detection process, once a potential fault or an existing fault is detected, the self-check circuit quickly triggers the fault alarm module 4, causing it to issue a corresponding alarm signal according to a preset alarm procedure. This achieves timely detection and early warning of faults in the control box itself, effectively preventing wider-ranging system problems caused by faults in the control box.

[0043] In another specific embodiment of this invention, both the trip relay monitoring circuit 2 and the close relay monitoring circuit 3 cleverly incorporate filter circuits. In actual power environments, weak currents often contain various noise signals, which can interfere with the accuracy of current monitoring, leading to misjudgments or missed detections. The function of the filter circuit is to effectively filter these noise signals in the weak current. Through specific filtering algorithms and circuit design, the noise signals are separated from the useful signals and filtered out, thereby ensuring that the monitored current signal is purer and more accurate, providing reliable data support for subsequent fault diagnosis.

[0044] In yet another specific embodiment of this invention, the circuit breaker control box with fault self-checking and alarm transmission function is also equipped with a power supply module. This power supply module, as the energy supply center of the entire control box, bears the important responsibility of providing stable operating power to the control box body 1, the trip relay monitoring circuit 2, the close relay monitoring circuit 3, the fault alarm module 4, and the signal transmission module 5. It adopts advanced power management technology and a high-precision voltage regulator circuit design, capable of providing accurate and stable voltage and current according to the different operating requirements of each module, ensuring that each module is not affected by power fluctuations during normal operation, thereby guaranteeing the stable and reliable operation of the entire circuit breaker control box.

[0045] In another specific embodiment of this invention, the circuit breaker control box with fault self-checking and alarm transmission function is further equipped with a signal amplification circuit. During the transmission of the fault alarm signal, various factors may cause signal attenuation, affecting the transmission quality and reliability. The function of the signal amplification circuit is to specifically amplify the fault alarm signal. Through precise amplification factor adjustment and signal enhancement technology, it ensures that the signal maintains sufficient strength and stability during transmission, avoiding signal loss or misjudgment due to signal attenuation, thereby further improving the reliability and accuracy of the entire fault alarm system.

[0046] Although this invention makes extensive use of the control box body and the trip relay monitoring circuit

[0047] The invention uses terms such as "inventory" and "extensions," but does not preclude the use of other terms. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

[0048] Finally, it should be noted that although the above embodiments have been described in the description and drawings of this invention, this should not limit the scope of patent protection of this invention. Any technical solutions that are based on the essential concept of this invention, utilize the content described in the description and drawings of this invention to make equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this invention.

Claims

1. A circuit breaker control box with fault self-checking and alarm transmission function, characterized in that, include: The main body of the control box (1) is used to control the opening and closing operations of the circuit breaker; The trip relay monitoring circuit (2) is used to monitor the current of the trip circuit and determine whether the trip circuit is normal. The closing relay monitoring circuit (3) is used to monitor the current of the closing circuit and determine whether the closing circuit is normal. The fault alarm module (4) is used to trigger a fault alarm signal when an abnormality is detected in the opening and closing circuit; The signal transmission module (5) connects the fault alarm signal to the power distribution automation terminal, and the power distribution automation terminal sends the fault alarm signal to the power distribution network master station.

2. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, The trip relay monitoring circuit (2) and the close relay monitoring circuit (3) determine whether the corresponding circuit is normal by monitoring the weak current in the corresponding circuit.

3. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, The fault alarm module (4) includes an alarm indicator light and an alarm signal output interface. When an abnormality is detected in the opening and closing circuit, the alarm indicator light is lit up, and a fault alarm signal is output through the alarm signal output interface.

4. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, The signal transmission module (5) includes a signal conversion circuit and a communication interface. The signal conversion circuit converts the fault alarm signal into a signal format suitable for the power distribution automation terminal to receive. The communication interface is used to connect the converted signal to the power distribution automation terminal.

5. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, It also includes a self-testing circuit, which is used to periodically detect the internal circuit status of the control box body (1), and trigger the fault alarm module (4) when a fault is detected.

6. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, Both the trip relay monitoring circuit (2) and the close relay monitoring circuit (3) have built-in filter circuits, which are used to filter out noise signals in the weak current.

7. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, It also includes a power supply module, which provides a stable power supply for the control box body (1), the trip relay monitoring circuit (2), the close relay monitoring circuit (3), the fault alarm module (4), and the signal transmission module (5).

8. The circuit breaker control box with fault self-testing and alarm transmission function according to claim 1, characterized in that, It also includes a signal amplification circuit, which is used to amplify the fault alarm signal to ensure the stability and reliability of the signal during transmission.

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