500kV青河Ⅱ线串补人工单相瞬时接地试验分析  

Analysis on Artificial Single Phase Grounding Test of 500 kV Qingyan-Hechi Ⅱ Fixed Series Compension

作　　者：史丹 胡玉峰 蔡汉生 傅闯 孙悦 许树楷 

机构地区：[1]南方电网技术研究中心,广州510623 [2]南方电网超高压输电公司柳州局,广西柳州545000

出　　处：《南方电网技术》2009年第5期81-84,共4页Southern Power System Technology

摘　　要：南方电网500kV青河Ⅱ线固定串联补偿装置在人工单相瞬时接地试验中,出现保护动作情况与预期不符、录波信号异常等现象。针对该项试验的异常现象进行了详细的分析,得出了异常现象主要是试验期间串补金属氧化物可变电阻器(MOV)的一个单元发生击穿所致的结论。During the artificial single phase grouding test of Fixed Series Compension （FSC） of the 500 kV Qingyan-Hechi Ⅱ line in CSG, there were phenomena of the unexpected protection actions and abnormal fault-recorder signals. This paper analyzes the abnormal phenomena in detail, and reaches a conclusion that the abnormity was caused by a breakdown unit of MOV during the grounding test.

关 键 词：南方电网 固定串联补偿装置 人工单相接地试验 金属氧化物可变电阻器(MOV) 

分 类 号：TM721[电气工程—电力系统及自动化] TM531.4