摘要
气体继电器保护是电力变压器的一种基本保护。如何正确选型、使用和维护有一定现实意义。以河南郑州供电公司一起220 kV变压器进口双浮球气体继电器误动作为实例进行了分析。叙述了气体继电器的动作原理,对这次误动作的具体原因做了详细分析,并进行了相应的试验予以验证。总结提出了电力企业在进行气体继电器选型、验收和校验的注意事项。
Protection by gas relay is one of the elemental protection of transformer. How to use and maintain, how to select the type of gas relay are of practical significance. This paper analyzes a case in Which an important double-floating ball gas relay of 220 kV transformer in Zhengzhou Power Supply Company Hennan Province was mal-operated, analyzes in detail the cause of this mal-operation, verifies it by test, and presents some points for attention in the selection, acceptance and rectification of gas relay.
出处
《供用电》
2008年第3期65-67,共3页
Distribution & Utilization
