变压器现场局部放电缺陷查寻及原因分析  

Analysis and Detection of Defects of PD in Field Transformers

作　　者：周远翔[1] 孙昌富[1] 李光范[2] 梁曦东[1] 关志成[1] 

机构地区：[1]清华大学,北京100084 [2]中国电力科学研究院高压所,北京100085

出　　处：《变压器》2001年第9期42-45,共4页Transformer

摘　　要：局部放电测量技术作为检验电气设备内部绝缘好坏的有效手段得到越来越普遍的应用。采用“多端测量 ,多端校正”及电气一超声联合测试 ,可准确发现并确定现场安装后的电力变压器内部存在的缺陷及其位置。试验结果表明 ,在现场进行电力变压器的局部放电试验 ,对提高安装质量 ,防止设备损坏及保证电网的安全运行将会起到积极的作用。The PD measuring technique is widely used as an effective method of evaluating internal insulation status for electric equipment. By using the method of 'multi-point measurement, multi-point calibration', and, with the assistance of the electric-ultrasonic testing method, we can detect the defect and its position accurately in a field power transformer. The testing results show that the PD test plays an important role in improving installation quality, safety and reliability of the power transformers.

关 键 词：局部放电 超声波定位 试验 三相电力变压器 

分 类 号：TM407[电气工程—电器]