Underground Mine Expansion Project

Mining / Diamonds – 2016

BACKGROUND

An Underground Expansion project to increase the annual production to 2,4 million carats, by the 2019 financial year end.

SCOPE

Provide the electrical equipment, the EC&I installation and the commissioning of this equipment for:

Surface infrastructure
Ball & SAG Mills
The electrical distribution and motor control centres for the drives

APPROACH

Zest WEG proposed using class leading products and optimised solutions

RESULTS / CUSTOMER BENEFITS

Reduced TCO

Peace of mind, due to extended product warrantees

Access to the Zest WEG after sales support teams

CONCLUSION

The project was successfully completed by Zest WEG, which included the electrical design, the manufacture and the site EC&I installation and commissioning activities.

PRODUCTS

132kV Rated Overhead line
HV outdoor substation, 88/6.6kV
2 x 88kV line bays
3 x 20MVA Transformers
2 x 3.3kV, 6400kW, MV VSD’s & HV Motors for the Ball & SAG Mills
2 x 8MVA Transformers, 6.6/(2 x 1.75kV secondaries)
2 x 690V, 1050kW, LV VSD’s & LV Motors for the HPGR’s
2 x 3MVA Transformers, 6600/690
LV VSD’s, 550V
LV MCC’s, 550V
LV Motors
EnI, EC&I Installation and commissioning