一起66 kV电容式电压互感器二次失压故障诊断分析  

Fault Diagnosis and Analysis on Secondary Voltage Loss of 66 kV Capacitor Voltage Transformer

作　　者：尹青华 李培 郭良峰 裴英 YIN Qinghua;LI Pei;GUO Liangfeng;PEI Ying(State Grid of China Technology College,Jinan 250002,China)

机构地区：[1]国家电网有限公司技术学院分公司,山东济南250002

出　　处：《国网技术学院学报》2020年第2期4-6,共3页Journal of State Grid Technology College

摘　　要：针对一起66 kV电容式电压互感器(CVT)二次失压故障,结合现场试验结果,对故障原因进行分析,判断故障原因为一次绕组高压端出现断点,并通过对故障CVT的解体和解体后的试验证实了这个判断;提出了预防此类故障的措施,以保障电力系统安全稳定运行。In allusion to a secondary voltage loss of a 66 kV CVT,combined with the test results on site,the reasons which can lead to this fault are analyzed in this paper.It is inferred that the fault is caused by the breakpoint of the primary winding high voltage end.This deduction is proved by the disassembly and test of the faulty CVT.At last,this paper puts forward preventive measures for similar faults in order to ensure the safe and stable operation of the power system.

关 键 词：电容式电压互感器 二次失压 故障诊断 预防措施 

分 类 号：TM451[电气工程—电器]