【摘要】 介绍随着城市配电网的规模不断扩大,电缆线路大面积的应用,配电网线路的电容电流日益增大,电容电流的大小决定消弧线圈调控,对电网的规划设计和运行安全有重要影响。本文研究了配电网发生单相接地故障时线路零序电流和电容电流之间的关系,基于单相接地故障时馈电分支线路的零序电流测量值,提出一种线路电容电流的测算方法。更多还原

【Abstract】 With the development of electric power industry, the city distribution network continues to expand. The application of cable lines is more and more extensive. The capacitive current of distribution network increases day by day.The capacitive current has an important influence on the planning and operation of network security and decides the size of the arc suppression coil control. In this paper, the relation between zero sequence current and capacitive current of single-phase to ground fault in distribution network is studied. Based on the measured value of zero sequence current of supply branch line under single-phase grounding fault, a method for measuring the capacitive current of line is proposed.更多还原