摘要
35 kV金属封闭开关柜局放导致绝缘损坏是开关柜事故发生的主要原因。对某变电站35 kV开关柜开展带电局放检测,发现了异常局放信号。采用声电联合的方法进行了局放定位,并对试验数据进行分析研究,得到了产生异常的位置及放电原因,为运行单位提供了处理意见,也为类似局放异常分析提供了借鉴方法。
The insulation damage caused by partial discharge of 35 kV metal-enclosed switchgear is the main cause of switchgear accidents.An abnormal partial discharge signal was found during live partial discharge detection of 35 kV switchgear in a substation.Localization of partial discharge was carried out by using the method of sound electricity combination,and the test data was analyzed and studied.The location of abnormal discharge and the cause of discharge were obtained,which provides the handling suggestions for the operating unit,and also provides a reference method for the analysis of similar partial discharge abnormalities.
作者
桑前浩
蔡伟
杨勇
陈俊威
杨殿成
廖圣
韩德孝
SANG Qianhao;CAI Wei;YANG Yong;CHEN Junwei;YANG Diancheng;LIAO Sheng;HAN Dexiao(Yunnan Electric Power Technology Co.,Ltd.,Kunming 650217,China)
出处
《电工技术》
2022年第23期179-180,共2页
Electric Engineering
关键词
开关柜
带电局放
声电联合
switchgear
live partial discharge
sound and electricity combination
