SF6 circuit breaker state monitoring method and thionyl fluoride gas concentration monitoring device

Abstract

The invention relates to an SF6 breaker state monitoring method and a thionyl fluoride gas concentration monitoring device, wherein the method is used for detecting the concentration of thionyl fluoride which is the decomposer of SF6 in an SF6 breaker, and the state of the SF6 breaker is judged by the concentration of the thionyl fluoride. The monitoring device which implements the above method comprises an information acquisition and processing unit and a processing unit, wherein the information acquisition and processing unit comprises a sensor module, a current-to-voltage conversion module and an analog-to-digital conversion module are connected in sequence, the processing unit is a controller, and the output end of the analog-to-digital conversion module is connected with the input end of the controller. The gas concentration monitoring device provided by the invention has the advantages of small size, low cost and lower cost especially in mass production and is easy to carry. The device also can well and easily detect the gas concentration, is suitable for practical engineering application, and has high detection accuracy, wide detection range and good electromagnetic disturbance resistance.

Description

technical field [0001] The present invention relates to SF 6 A circuit breaker state monitoring method and a thionyl fluoride gas concentration monitoring device belong to the technical field of on-line monitoring of high-voltage circuit breakers in power systems. Background technique [0002] With the development of the power system towards high voltage and large capacity, it is more and more important to ensure the safe operation of power equipment, and the impact and loss of power outages on the national economy and people's lives are increasing. High-voltage power equipment is the basic component of the power system and the basis for ensuring the reliability of the power system. The high-voltage circuit breaker is the most important switching device in the power system. It plays a role in control and protection in the power grid, that is, it is used to reliably switch on or cut off the corresponding lines or electrical equipment according to the needs of the power grid ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of this invention is to provide a kind of SF 6 The circuit breaker state monitoring method is used to solve the problem that the traditional detection of copper metal vapor concentration cannot effectively diagnose the state of the circuit breaker. The invention also provides a thionyl fluoride gas concentration monitoring device

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