Molded case circuit breaker intelligent module integrating multiple functions

By designing a smart module for plastic shell circuit breaker that integrates multiple functions, the problems of slow response speed and difficult power quality monitoring of traditional distribution networks are solved, rapid fault positioning and power quality control are achieved, and the self-healing ability and power supply reliability of the power grid are improved.

CN119727139APending Publication Date: 2025-03-28CHINA JILIANG UNIV
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Patent Information

Application Number
CN202510168443.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Traditional distribution networks have slow response speed when failure occurs, making it difficult to achieve comprehensive monitoring and effective control of power quality, affecting power supply reliability.

Method used

Design a plastic shell circuit breaker intelligent module with integrated functions, which has functions such as data acquisition, remote communication, human-computer interaction, metrology protection, topology recognition and event recording, and supports plug-and-play, adaptability and self-calibration to realize remote maintenance and power-off replacement.

Benefits of technology

Through real-time monitoring and automatic fault detection of intelligent modules, faults can be quickly located and protection mechanisms can be activated to reduce power outage time and improve the self-healing ability of the power grid; at the same time, high-precision monitoring and control of power quality can be achieved, reducing operation and maintenance costs.

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Abstract

The invention relates to a molded case circuit breaker intelligent module integrating multiple functions. The molded case circuit breaker intelligent module integrates the functions of data acquisition, remote communication, man-machine interaction, metering protection, topology identification, event recording, temperature measurement and the like. Key parameters, including voltage, current, power, power factor, power grid frequency, electric energy and the like, in a power system can be collected in real time through data collection, meanwhile, voltage and current unbalance detection and harmonic detection are achieved, and metering current and protection current can be calculated and displayed respectively. The communication module comprises serial port communication, Bluetooth communication and carrier communication, and supports multiple communication protocols. A liquid crystal display screen and keys are arranged in the aspect of man-machine interaction, a visual user interface is provided, and field operation and parameter setting are facilitated. The protection function provides a plurality of protection mechanisms, such as overload, short circuit, overvoltage, undervoltage, phase loss, zero line breaking and temperature protection, so as to prevent and reduce faults of a power system. The topology identification module can autonomously modulate and send the characteristic current and analyze the characteristic current, so that the area topology can be conveniently identified. Meanwhile, an event recording function is achieved, and opening and closing events, remote signaling displacement events and protection comprehensive events can be recorded respectively. The temperature measurement function can collect the real-time temperature of six paths of three-phase incoming lines and outgoing lines in real time, and normal operation of the temperature protection function is ensured. The modular design is adopted, shell frame circuit breakers of different current specifications are supported, plug and play is achieved, and the operation and maintenance cost is reduced.
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