浙江电力
浙江電力
절강전력
ZHEJIANG ELECTRIC POWER
2014年
9期
6-9
,共4页
1 000 kV%变电站%母差保护%短路电流%GIS%故障点
1 000 kV%變電站%母差保護%短路電流%GIS%故障點
1 000 kV%변전참%모차보호%단로전류%GIS%고장점
1 000 kV%substation%bus differential protection%short-circuit current%GIS%fault point
某特高压交流变电站1000 kV母线GIS设备因绝缘问题引起单相接地故障，而故障点的查找非常困难，通过保护动作报告和故障录波图对故障时母线保护动作行为进行了全面分析。利用故障时1000 kV各断路器的短路电流分布大小和方向，给出了GIS设备排查区域，缩小了故障查找的范围，为快速查出故障点提供了有力的技术支持。
某特高壓交流變電站1000 kV母線GIS設備因絕緣問題引起單相接地故障，而故障點的查找非常睏難，通過保護動作報告和故障錄波圖對故障時母線保護動作行為進行瞭全麵分析。利用故障時1000 kV各斷路器的短路電流分佈大小和方嚮，給齣瞭GIS設備排查區域，縮小瞭故障查找的範圍，為快速查齣故障點提供瞭有力的技術支持。
모특고압교류변전참1000 kV모선GIS설비인절연문제인기단상접지고장，이고장점적사조비상곤난，통과보호동작보고화고장록파도대고장시모선보호동작행위진행료전면분석。이용고장시1000 kV각단로기적단로전류분포대소화방향，급출료GIS설비배사구역，축소료고장사조적범위，위쾌속사출고장점제공료유력적기술지지。
A single-phase ground fault of 1 000 kV busbar GIS in an UHV AC substation occurred due to in-sulation. The fault point is hard to detect. The paper comprehensively analyzes protection action of busbar in case of the fault by protection action report and fault recording; By means of distribution magnitude of short-circuit current and its direction during the fault occurred, it suggests the detection area, narrowing the area of fault detection and providing strong technical support to fast detection of fault point.
