300MW发电机定子绕组高压预试及故障处理

300 MW generator stator winding up the pretest and fault handling

发电机端部绝缘从制造角度来讲是1个较薄弱的部位,运行中发生故障的几率较高,而交、直流耐压试验是判断发电机定子绕组绝缘优劣最常用、有效的手段。本文分析了某公司300 MW发电机定子C相线圈和B相引线绝缘磨损故障,介绍了用高压预示查找故障点并进行定子线棒局部更换,局部修理引线绝缘的过程,总结了发电机故障诊断及其处理的经验和方法。

Generators - manufacturing perspective from the Department of insulation is a relatively weak body, the probability of higher operational failures, and to, DC impatient testing is the most superior judgment generator stator winding insulation commonly used and effective means of the world. Through analysis of this limited liability company Shanxi sunshine generation of 300MW generator statot coil and B of C researchers insulation worn, wellused and identify failure points stator line Rod partial replacement, partial repair fuse insulation, the replacement of the line rods and a high-pressure testing. He put forward the generator failure diagnosis and fault handling experience and methods.