小电流接地系统电压不平衡现象简析

Analysis of the voltage unbalance in the small current grounding system

介绍小电流接地系统PT二次电压异常的几种现象,并分析了二次电压异常的原因,对高、低压保险熔断、接地、PT二次错误接线等问题结合现场实际进行探讨。

Introduces the voltage unusual phenomena of potential transformer （PT）＇s secondary winding in the small current grounding system, analyzes the reason of the secondary winding voltage unusualness, combining with the practice, discusses the problems of high or low voltage fuse fusing, grounding or PT＇s secondary winding wiring wrong and so on.