Research and Analysis of Signal Injection Method for Measuring Capacitive Current in Distribution Network

Effectively grasping the basic data of capacitive current of power distribution network and regularly checking arc suppression coil device are important tasks to ensure the safe and stable operation of distribution network. Therefore, a method of on-line measuring capacitive current of power distribution network (signal injection method) is introduced. The correctness of the principle is verified by simulation analysis. However, in the actual power distribution network measurement, the method has the practical engineering problem of serious deviation of measurement results. Therefore, a detailed analysis is carried out.