变电站3/2接线处断路器三相电流不平衡分析

The Phenomenon Analysis Based on 3/2 Connection of Center Circuit Breaker in Substation the three-phase Current not Balance

本文分析变电站3/2接线处中心断路器出现三相电流不平衡现象系统参数原因,建立了中心断路器系统参数数学模型和戴维南等值电路,从两方面得出引起3/2接线处中心断路器三相电流不平衡的主要原因是系统无功参数三相不平衡。

This paper analysis the three-phase current not balance which 3/2 connection of center circuit breaker in substation.The Mathematical Model and Thevenin equivalent circuit is established based on center circuit breaker,From these two aspects the reactive parameters unbalance is main reason lead to three-phase Current not Balance.