一起800 kV断路器绝缘故障的原因分析

Analysis of Insulation Accident of 800kV Circuit-breaker in Guanting Transformer Substation

笔者对官亭变电站扩建工程中一台800 kV断路器连续两次故障的情况进行了介绍,详细分析了故障的原因,提出了800 kV开关设备需要进一步加强的检查措施,为后续800 kV开关设备提供了质量保障。

This paper introduces two insulation accidents of a 800 kV circuit-breaker in Guanting transformer substation during the extension project period, analyses the causes of the accident, and suggests some measures for strict inspection of the 800kV circuit-breakers so as to enhance their safety.