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本文从四个方面作了论述,认为工作面供电能用3kV就不用6kV,并应与整个矿井供电网隔离,以提高供电的安全性与可靠性。并对高压电网的漏电保护及降低电弧接地过电压,提出了意见。
This article elaborates from four aspects, and considers that the working face can not be 6kV for 3kV power supply and should be isolated from the whole mine power supply network to improve the safety and reliability of power supply. And the high-voltage grid leakage protection and reduce the arc grounding over-voltage, put forward opinions.