Non-contact type four-in-one breaker testing and mechanical fault identification system

Abstract

A non-contact type four-in-one breaker testing and mechanical fault identification system is composed of a breaker (1), a non-contact signal acquisition module (2), a synchronous data acquisition card (3) and a high-performance industrial control computer (5), wherein the breaker (1), the non-contact signal acquisition module (2), the synchronous data acquisition card (3) and the high-performance industrial control computer (5) are connected. A GIGEVision transmission channel (4) is further connected between the non-contact signal acquisition module (2) and the high-performance industrial control computer (5). The direct relation of operation of an operating mechanism and the mechanical characteristic of the breaker is analyzed, so that the characteristic signals of the current change of a divide-shut brake coil, energy storage, the operation process and the movement of a transmission component are acquired and the breaker testing and mechanical fault identification system integrating electricity, sound, vibration and images is established.

Description

technical field [0001] The invention relates to the technical field of electric power monitoring device structure, in particular to a system suitable for monitoring the mechanical characteristics of a high-voltage circuit breaker. Background technique [0002] High-voltage circuit breakers play a vital role in the operation and control of power grids, and their operation, maintenance and overhaul are closely related to the reliability of the entire system. According to statistics, mechanical failures such as circuit breaker refusal to operate, misoperation, slow separation and three-phase out-of-phase caused more than 80% of the total accidents, and the main failure of the circuit breaker was the failure of the operating mechanism. The characteristic parameters of the moving mechanism have changed. [0003] Most of the traditional circuit breaker operating mechanism fault identification systems start from a single circuit breaker sensor technology. The state quantity obtain...

AI Technical Summary

Problems solved by technology

[0003] Most of the traditional circuit breaker operating mechanism fault identification systems start from a single circuit breaker sensor technology. The state quantity obtained in this way is relatively single, which is not conducive to the establishment of a circuit breaker operating mechanism fault identification system.

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