【摘要】 针对井下低压电网漏电故障的电气特征,提出选择性漏电保护措施,以及基于零序电流和零序电压的功率方向型选漏保护的改进方法,为井下低压电网的综合保护提供了科学依据,提高了供电的可靠性。更多还原

【Abstract】 Address the electrical characteristics of underground low voltage network leakage fault,propose selective leakage protection measures,and improvement of power-election direction leakage protection based on the zerosequence current and zero-voltage.Provides a scientific basis for the integrated protection underground low voltage network,and raise the reliability of power distribution.更多还原