煤矿井下高低压供电系统的改造

Transformation of High and Low Voltage in Mine Shaft of Coal Mine

针对桃园煤矿井下高低压供电系统存在的问题和隐患,通过一系列改造,尤其是对低压开关、局部通风机供电线路及控制方式的改造,提高了井下供电可靠性,极大地降低了掘进工作面通风事故的发生频率,保障了安全生产。

Some questions and hidden danger existed in the oryginal power supply system of Tiaoyuan Coal Mine. Through a series of transfotmation, especially the transformation to the low voltage switch, the supply line and the control mode of the partial ventilator, the reliability of electricity provision is raised, the occurrence frequency of the tunneling working surface well centilated accidents is enormously reduced, the safety production is ensured.