一起直流融冰兼动补装置TCR支路绝缘管母故障分析及处理

Fault Analysis and Treatment of Insulated Bus Bar in TCR Branch of DC Deicer and SVC

绝缘管母近年来在电网中得到广泛应用,其接头是该类设备易出现故障的部位。针对一起直流融冰兼动补装置TCR支路绝缘管母故障,通过故障相解剖,对照该型绝缘管母的设计方案及原理,对绝缘管母接头处暴露出的缺陷及其故障原因进行了深入分析和探讨,并就绝缘管母设计选型、施工工艺、日常运维、带电检测等多个环节的工作要点提出建议。

Insulated bus bar is widely used in power grid in recent years. However, surface partial discharge often happens on its joint. The design and principle of insulated bus bar in TCR branch of DC deicer and SVC are ana-lyzed, according to the field investigation, anatomy and contrast to the design principle. This paper analyzes and dis-cusses the defects and the causes of the failure on the joint of insulated bus bar. And some suggestions on safe opera-tion of the bus bar are given with respect to design selection, technology, operation and detection.