Modular systems save time and money while advancing mine sections

An underground power distribution center is essential for keeping a mine’s operations up and running. Supplying power underground and minimizing downtime outages in support of advancing mine sections is a unique challenge.

In a typical underground mine, electrical power from the utility first connects to a surface substation. At this substation, transmission voltages coming to the mine are normally routed through a gang-operated switch and a set of fuses. These allow the substation to be disconnected from the utility and also provides electrical protection for the substation. From there, power is transformed to operating voltages and routed through additional switching, fusing and vacuum circuit breakers. Power is then fed out via cables into the underground sections of the mine. The substation’s surface unit normally provides ground monitoring and ground-fault protection.
Read more