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介绍一种关于测量矿井电网单相接地电流安全而实用的新方法 ,它是在一相上用电阻接地进行测量 ,然后计算求得单相直接接地时的电流。该方法既可用于一般中性点不接地和经消弧线圈接地的高低压供电系统 ,而且在其他中性点接地方式的供电系统中也都可以应用。
A new method to measure the safety of single-phase grounding current in mine power network is introduced. It is based on the measurement of resistance grounding in one phase and then calculating the current in single-phase direct grounding. The method can be used for both neutral and non-grounded high voltage power supply system with arc suppression coil grounding, and can be applied in other neutral point grounding power supply systems.