High-voltage circuit breaker component maintaining method

Abstract

The invention discloses a high-voltage circuit breaker component maintaining method. The method comprises the following steps: performing module division on a circuit breaker by adopting an FMEA (failure mode and effect analysis) in combination with functions and components of the circuit breaker, establishing a risk assessment index system for a high-voltage circuit breaker component on the basis of risk assessment, and performing weight determining on risk assessment indexes by using an analytic hierarchy process; then establishing an importance level assessment index system for the circuit breaker component by applying risk quantification values of failure modes of a weighted grey relationship analysis model to obtain an importance level index of the circuit breaker component; establishing a two-dimensional relationship model between the failure risk degree and the importance of the component according to importance level indexes and the risk quantification values of the circuit breaker component, and taking the degree of urgency of needing maintaining equipment as an intermediate quantity to finally obtain a standard maintaining sequence value.

Description

technical field [0001] The invention belongs to the field of evaluating the operating state of power transformation equipment, and in particular relates to a method for overhauling parts of a high-voltage circuit breaker. Background technique [0002] A high-voltage circuit breaker (or high-voltage switch) is a special electrical appliance that turns on or off a high-voltage circuit under normal or fault conditions. It plays a control role in the high-voltage circuit and is one of the important electrical components in the high-voltage circuit. It can not only cut off or close the no-load current and load current in the high-voltage circuit, but also cut off the overload current and short-circuit current through the function of the relay protection device when the system fails. streaming capability. [0003] The main structure of high voltage circuit breaker is roughly divided into: diversion part, arc extinguishing part, insulation part and operating mechanism part. The ...

AI Technical Summary

Problems solved by technology

Traditional preventive maintenance has the problem of insufficient maintenance and excessive maintenance. The life cycle cost of high-voltage circuit breakers is relatively high. It is necessary to determine new maintenance methods to effectively improve the reliability and economy of high-voltage circuit breaker operation.

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