A monitoring method and system for an operating mechanism of a high-voltage circuit breaker

Abstract

The embodiment of the invention discloses a method and system for monitoring a high-voltage circuit breaker operating mechanism. By determining a stress detection point of the high-voltage circuit breaker operating mechanism and arranging a stress sensor according to the stress detection point, stress signals of the high-voltage circuit breaker operating mechanism are collected; since the stress detection point is a detection point which is judged through simulation analysis to be subject to failures very easily, stress signal colleting efficiency and precision are improved, and technicians can obtain a stress state of the high-voltage circuit breaker operating mechanism accurately conveniently. A remote monitoring and analysis system receives the stress signals having undergone calculation, amplification, filtering and digital-to-analog conversion and performs stress analysis and can timely learn about stress results of the operating mechanism and have a very high uptodate state, stress analysis is performed, health conditions of the operating mechanism are further mastered comprehensively and accurately, so as to be favorable for taking corresponding maintenance measures timely; therefore, electric power accidents are avoided, and the safety of an electric power system is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electrical machinery, in particular to a method and system for monitoring an operating mechanism of a high-voltage circuit breaker. Background technique [0002] In the power system, the circuit breaker is the most widely used protection and control device in high-voltage electrical equipment, which is inseparable from its own advantages of no fire hazard, environmental protection, and good breaking performance. In recent years, power grid accidents caused by breakage of circuit breaker operating mechanism have occurred frequently, seriously affecting the safe and stable operation of the power grid. According to the circuit breaker reliability survey data provided by the International Power Grid Conference, in the operation accidents of high-voltage circuit breakers, failures accounted for 64.8% of all failures, of which mechanical failures accounted for 55% of all failures. The above data show that circu...

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Problems solved by technology

[0004] The embodiment of the present invention provides a method and system for monitoring the operating mechanism of a high-voltage circuit breaker to solve the problems of poor real-time performance and poor accuracy in monitoring the operating mechanism of a high-voltage circuit breaker in the prior art

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