Ampcontrol has implemented a 132/11kV project that includes an 85-tonne 40/50MVA transformer, to enable raising the mine's production from 6.4 million t/yr to 7.5 million t/yr. 

The project also included an 11kV substation, 3000A 11kV switchboard and associated protection system, The mine and the end-user were not disclosed.

The transformer was fully tested in house in Ampcontrol's transformer facility, before being filled with oil above the core and coil assembly for transport, to the mine, where site erection work was undertaken by Ampcontrol's High Voltage Service team.