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煤矿井下高压电网产生的单相接地电容电流,是煤矿生产中普遍存在的问题,也是影响煤矿安全生产的一个主要问题。《煤矿安全规程》(1992年版)第434条规定:“矿井高压电网的单相接地电容电流不得超过20A,否则,必须采取限制措施。”而根据文献的研究结果,煤矿井下6kV电网的电容电流不得大于20A,因此,了解电容电流的产生原因及其造成的危害,并在此基础上提出行之有效的限制措施,是很有必要的。
The single-phase grounding capacitor current generated by underground high-voltage grid in coal mine is a common problem in coal mine production and also a major problem that affects coal mine safety production. Article 434 of the Coal Mine Safety Regulations (1992 Edition) stipulates: “The single-phase grounding capacitor current of the mine high-voltage power grid shall not exceed 20A, otherwise restrictions must be taken.” According to the literature, the capacitance current of the 6kV underground power network Not more than 20A, therefore, to understand the causes of capacitor current and its harm, and on this basis to put forward effective restrictions, it is necessary.