Secondary loop panoramic state monitoring system for electric operating mechanism of circuit breaker

Abstract

The invention discloses a secondary loop panoramic state monitoring system for an operating mechanism of a circuit breaker in the technical field of power systems. The system comprises a communication module, a control module, a sensor module, a switch-on processing module and a trip processing module. The system can perform on-line monitoring per se on the integrity of an operating loop, a monitoring loop and loop elements in various working states of the circuit breaker such as switch-off, switch-on and the like, realizes state monitoring of trip and switch-on loops in a full state, and has active defense function. Compared with the prior art, the system simplifies the tripping and closing operation loops, improves the integral reliability of the system, provides necessary conditions for state overhauling of the intelligent circuit breaker, ensures safe operation of the high-voltage circuit breaker, and improves the power supply reliability of the power system.

Description

technical field [0001] The invention relates to a device in the technical field of electric power systems, in particular to a secondary circuit panoramic state monitoring system for an electric operating mechanism of a circuit breaker. Background technique [0002] With economic development, social progress, continuous improvement of technology and information technology, and global resource and environmental issues becoming increasingly prominent, the development of power grids is facing new issues and challenges. Relying on modern information, communication and control technologies, actively developing smart grids and meeting the requirements of sustainable development in the future has become a realistic choice for international power development. As an important support for smart grid construction, intelligent primary equipment featuring networked control, digital measurement and status monitoring lays a material foundation for the safe and stable operation of the power ...

AI Technical Summary

Problems solved by technology

However, this prior art only monitors in real time the phenomenon of relay contact sticking with a small damage probability in the operation circuit. In this implementation, a monitoring circuit is also introduced. This technology also does not have the ability to completely monitor the operation circuit. Not to mention active defense and isolation of faults

[0007] To sum up, the above-mentioned prior art only partially monitors the operating circuit of the circuit breaker, and introduces a new monitoring circuit when implementing circuit monitoring. These monitoring circuits are directly and closely related to the operating power supply and the operating circuit. , The open circuit and short circuit caused by the damage of the components of the monitoring circuit itself will inevitably affect the safety of the entire secondary operation circuit and introduce new fault points

If these circuits are not monitored, the safety of the secondary circuit cannot be guaranteed

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