特高壓交流變電站GIS母線故障綜合分析法
吳展鋒,孫彥萍,徐慶峰,彭晨光,常騰飛
(國網(wǎng)浙江省電力有限公司檢修分公司,浙江 杭州 311232)
摘 要:GIS母線故障在大部分情況下是外觀無異常,無異常氣味,無氣體泄漏的聲音,看不到明顯的故障點(diǎn)。針對無明顯故障點(diǎn)的GIS母線故障,提出了一種GIS母線故障綜合分析法,通過氣室壓力分析法、零序電流分析法、紅外測溫分析法及六氟化硫(SF6)氣體組分分析法來綜合判斷故障部位。此方法在快速大致定位故障氣室的前提下,有針對性地進(jìn)行組分分析,可快速、可靠定位故障點(diǎn),從而進(jìn)行故障氣室的隔離,恢復(fù)母線的運(yùn)行,實(shí)際案例分析驗(yàn)證了該方法的有效性。
關(guān)鍵詞:特高壓;GIS 母線;綜合分析;故障定位
中圖分類號:TM595 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2020)07-0039-05
A Comprehensive Analysis Method of GIS Bus Fault in UHV AC Substation
WU Zhan-feng, SUN Yan-ping, XU Qing-feng, PENG Chen-guang, CHANG Teng-fei
(Maintenance Company of State Grid Zhejiang Electric Power Company, Hangzhou 311 232, China)
Abstract: In most cases, there is no abnormal appearance, no abnormal smell, no sound of gas leakage, and no obvious failure point can be seen in GIS bus fault.Aiming at GIS bus faults without obvious fault points, a comprehensive analysis method for GIS bus faults is proposed. The fault is comprehensively judged by gas chamber pressure analysis method, zero sequence current analysis method, infrared temperature measurement analysis method and SF6 gas component analysis method Location.This method is based on the premise of quickly and roughly locating the faulty gas chamber, and conducts targeted component analysis to quickly and reliably locate the fault point, thereby isolating the faulty gas chamber and restoring the operation of the bus.The actual case analysis verifies the effectiveness of the method.
Key words: UHV; GIS bus; comprehensive analysis; fault location
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