城市轨道交通双电源并列环式供电方案的过电流保护配合

对城市轨道交通双电源并列环式供电方案的过电流保护进行全面分析,包括电流方向设定、电流定值设置及延迟时间配合,并在这三方面对环式供电分区进线的过电流保护配合进行了论述。

The paper comprehensively analyzes the overcurrent protection of dual source parallel loop power supply scheme for urban rail transit,including current direction setting,current setting and delay time coordination,and discusses,from three aspects abovementioned,the overcurrent protection coordination of the incoming lines of loop power supply section.