Leakage Current Sensor Development for DC System Grounding Failure Monitoring
In order to detect the grounding faults in substation secondary-side DC system,an intelligent leakage current sensor is developed.This leakage current sensor can detect the leakage current of the loop circuit in DC power system by electromagnetic induction principle,and measure load insulation failures.Theoretical research and field operation verify that this sensor can detect the magnetic field generated by leakage current of each branch without injecting any signal into DC operating circuit,producing no bad effects on the DC power system.With accurate detection and high sensitivity,it solves the practical problems in grounding fault detection of DC power system.
NETL
NSTL
万方数据
维普
