大型抽水蓄能机组局部放电在线监测的分析

Analysis of the Partial Discharge on Pump-storage Generator

介绍了PDA局部放电在线监测方法在抽水蓄能机组上的应用 ,分析了超高频检测技术、波反射的阻抗特性和脉冲时差鉴别法在噪音处理上的应用。现场的应用表明 ,PDA方法作为抽水蓄能机组绝缘监督的一种手段是可行、有效的。

This paper discusses the PDA test of Pump-storage Generator. The EHV measurement techniques, the characteristic of impedance mismatch and pulse time-of-arrival identification are used to reject the field noise. It is indicated that PDA is feasible and effective as the method of Pump-storage Generator PD test.