摘要
本文就某水电厂TS1260/200-48型、225MW、15.75kV发电机(1、2号机)定子绝缘在预防性试验中常出现热态耐压击穿现象和环氧粉云母绝缘电性能下降的临界值进行了研究。针对耐压试验值和性能下降的临界值问题提出了看法。
The electric breakdown of a stator winding insulation at thermal state and reducing of the electric properties of epoxy-mica paper insulation, often occurred in the preventive test of two TS1260/200-48,225MW,15.75kV hydrogenerators for a certain water power station, have been studied.In this paper, some views on the test voltage values of the resistance voltage test and a critical value on the reducing of the electric properties are presented.
出处
《大电机技术》
北大核心
1990年第1期15-21,8,共8页
Large Electric Machine and Hydraulic Turbine
关键词
水轮发电机
绝缘试验
large hydrogenerator insulation test
