李家峡水电厂水轮发电机组ZX—4转速信号装置故障分析及改进

Fault Analysis and Improvement of Lijiaxia Hydraulic Power Station's Generating Units'ZX-4 Rotating Speed Signal

文章针对李家峡水电厂水轮发电机组ZX - 4转速信号装置出现的故障 ,结合现场检查结果及水轮发电机组的实际运行情况进行了分析 ,介绍了改进后的ZX - 4A型转速信号装置的结构、工作原理。

According to the fault of ZX-4 rotating speed signal installation in Lijiaxia hydraulic power station's generating units,the paper analyses this fault combining to the practical operation situation,and introduces the improved ZX-4 type installation's structure,working principal and operation situation.