摘要
发电机局部放电信号强度是判断定子绝缘状态的一个重要参量，目前对发电机定子局部放电信号的强度有多种表示方法，造成了认识上的混乱。本文探讨了大型发电机定子局放量标定中存在的困难及其原因，讨论了采用不同带宽的检测系统对放电量标定带来的影响，对大型发电机定子局部放电信号强度的表示方法提出了建议。
The magnitude of partial discharge (PD) in large generator is an important param eter to the judgement of the condition of stator windings,but the on-line PD te sts on the stator windings suffer from the problem that the test results are not absolute.There are different ways to denote the magnitude of the PD recently.It confused the engineers in this field.This paper discussed the difficulties of calibrating the PD on stator winding measurements.It is pointed out that the reason i s the inductive nature of stator windings and different bandwidth of detector.
出处
《大电机技术》
北大核心
2000年第5期28-31,共4页
Large Electric Machine and Hydraulic Turbine
