In power system of 6-66KV, when capacitor current associated with single-phase ground fault excess 10A (It is 30A in 6-10KV cable circuit system), arc-supression coil device should be adopted to prevent severe damages. The device is designed based on eletrical standard of DL/T620-1997 (standard of overvoltage protection and insulation co-ordination of AC electrical equipments)
Structure and Struture Name of the Device
1.MRD-XHZ micro-computer controller and PK screen.
2.Grounding Transformer
3.Regulated load arc supression coil
4.MRD damping resistor cabinet as well current/voltage transformer.