葛君山.电压互感器断线对距离保护影响及应对措施研究[J].电测与仪表,2016,53(21):. Ge Junshan.Analysis of the Effect of PV disconnection on distance protection and the countermeasure[J].Electrical Measurement & Instrumentation,2016,53(21):.
电压互感器断线对距离保护影响及应对措施研究
Analysis of the Effect of PV disconnection on distance protection and the countermeasure
The distance protection is affected by the transformer greatly. The effect of PV on distance protection is analyzed in detail in this paper, and the analysis result shows that the distance protection may mis-operate during PV disconnection. Then, a synchronous method to discriminate the PV disconnection is proposed in order to prevent the mis-operation of the distance protection. The simulation results prove the correct of the method.