EKL 3, 4 series short circuit and ground fault indicator 

It can be widely used in power system, all kinds of ring network cabinet, high voltage switch cabinet and cable branch box, can accurately and reliably detect the fault section and fault types of power grid. It is an effective method to check the cable fault by using the cable type short circuit and the earth fault indicator, which is an effective way to improve the operation level and the accident treatment efficiency of distribution network.