并联电容器组相间电压差动保护的研讨与应用  

Discussion and Application of Inter-phase Differential Protection of Voltage for Shunt Capacitor Bank

作　　者：张惠山[1] 刘海锋[1] 王亚强[1] 

机构地区：[1]河北省电力公司检修分公司,河北石家庄050070

出　　处：《电力电容器与无功补偿》2013年第5期18-21,共4页Power Capacitor & Reactive Power Compensation

摘　　要：针对部分变电站并联电容器组每相仅配有双套管放电线圈的一次结构,需以零序电压作为并联电容器组电压差动保护启动回路的接线方式,文章分析了该种接线方法的特点和在实际运行维护中的不足,并提出了相间电压差动保护的方案,供相关技术人员参考。As for the primary structure for each phase of shunt capacitor bank of certain substation with double-bushing discharging coil, the zero sequence voltage is needed as the wiring mode of volt- age differential protection initial circuit of shunt capacitor bank. In this paper, features of such meth- od and its shortcoming in actual operation and maintenance are analyzed; the scheme on inter-phase voltage differential protection is raised for reference by related technical persons.

关 键 词：电压差动保护 零序电压 并联电容器组 阻容分压原理 放电线圈 

分 类 号：TM53[电气工程—电器]