World’s largest HPGR drive system for Boddington gold mine

ABB has successfully commissioned the world’s largest high pressure grinding roll (HPGR) drive system for the Boddington gold mine expansion project in Western Australia. The delivery comprised 2 x 2,800 kW HPGR units of two converter transformers, two medium voltage frequency converters and two squirrel cage induction motors. By optimising the grinding process, ABB’s ACS1000 drives will help the plant reduce its energy consumption. Newmont Mining started up production recently at Boddington, which was originally a main oxide open-pit mine that was closed at the end of 2001. (more…)