高压断路器电寿命诊断方法的对比分析

Analysis on High Voltage Circuit Breaker Electrical Life Diagnosis Method

介绍了目前关于SF_6高压断路器电寿命诊断的多种方法,着重分析比较了几种常见方法的算法原理,总结了各种方法的优缺点及适用范围。通过对N_s-I_s寿命曲线法中所涉及到的2条曲线的对比分析,找出了基于具有代表性的试验数据的断路器灭弧室烧蚀等效定律,给出了目前适用于工程应用的断路器电寿命诊断策略。同时也指出了电寿命理论发展的工程意义、应用前景以及所面临的问题。

Several methods to diagnose the electrical life of SF6 HV circuit breaker are introduced. The several common-used methods are analyzed in emphasis. The character and applicable scope of each method are summed up. Through the contrast and analysis of 2 curves referred in Ns-Is life curve, equivalent law of arcing chamber ablation with representative test data is found out. The circuit breaker electrical life diagnosis policy applicable to be applied in project is given. The significance, application prospect and encountered problems are pointed out.