摘要
采用低频和高频两种检测方法对发电机定子局部放电的统计特征进行试验研究 ,以寻找两者的内在联系及可比性。分别采用不同的故障模型进行了试验 ,试验结果表明两种检测方法的检测结果具有一定的相似性和可比性 ,仅仅在脉冲的幅值上有所差异 。
PD Statistic characteristics of generator stator winding insulation are studied by the high and low frequency measuring methods, in order to investigate their inherent relations. Some tests on generator model bars simulating three different types of partial discharge (such as delamination discharge, end winding discharge and slot discharge) actually occured in the generator were carried out. The test results show that two kinds of PD statistic characteristics by two measuring methods have comparability, the difference is only the value. It is also proved by the field test results.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2002年第B12期3-4,7,共3页
High Voltage Engineering
关键词
发电机
放电
定子绝缘
统计特性
低频检测
高频检测
generator stator winding insulation partial discharge statistic characteristics HF and LF measuring methods
