兼并重组煤矿地面供电系统的改造

Reformation of Ground Power Supply System in Merger and Reorganization Collieries

兼并重组煤矿地面供电系统大部分不符合《煤矿安全规程》要求,必须对煤矿供电系统进行改造。由于煤矿情况各不相同,但年产量在100万吨以下的为多数,地面供电高压进线多为10kV,因此,煤矿供电改造采用新建35kV变电站,二次电压为10kV,同时10kV变0.4kV站与35kV站联建,这样既节省投资,又能满足生产需要。

Coal mine power supply system must be transformed because most ground power supply system of merger and reorganization collieries does not accord with ＂The Coal Mine Safety Regulations＂. Mostly high volt- age line of ground power supply is 10 kV because the annual output of most collieries is less than 1 million tons. So the new 35 kV substation has been adopted,with secondary voltage 10 kV and joint substation of 0.4 kV and 35 kV replacing of 10 kV substation,which can save investment and meet the requirement of production.