摘要
介绍一起定子接地保护用三次谐波电压异常情况的分析处理过程,找出了异常的原因,建议重视启动前定子绕组的绝缘测量,特别不要忽略配电变压器高压绕组,建议在现场试验时对三次谐波电压进行仔细的现场测量和分析,对三次谐波电压式定子接地保护进一步调整,以达到最佳运行工况。
In this paper, an abnormity of stator earth fault protection based on third harmonics voltage is presented and analyzed. During field commissioning, the measurement of stator insulation, distribution transformer insulation and the magnitude of third harmonies voltage before startup are suggested in order to achieve optimal behavior of stator earth fault protection.
出处
《山东电力技术》
2010年第5期22-23,共2页
Shandong Electric Power
关键词
定子
接地保护
三次谐波
stator
earth fault protection
third harmonics
