Drives, motors and switchgear

by Karl van Rensburg, Siemens South Africa Rail Electrification

Open cast mining has always been an opportunity for operation of diesel-electric driven haul trucks, which are powered by a diesel-electric drive system consisting in principle of two electric drive motors, integrated through gears into the rear wheels of the trucks, an electric generator/alternator and a powerful diesel engine.

by Anna Hildebrand Jensen, Danfoss

How ac drives improve efficiency, the advantage of choosing ideal components over pre-bundled packages, and total cost of ownership considerations.

by Rudi Swanepoel, SEW-EURODRIVE South Africa

A very large order for SEW-EURODRIVE’s MC Series industrial gear units is being supplied to a gold-mining project in Kazakhstan.

Philippe Hampikian, Schneider-Electric

Since arriving on the market, VSDs have proliferated across many industries.

By Henry du Preez, Consultant

More efficient operation of motors can be achieved by optimising the energy consumption under varying loads.

by David Claassen, Zest WEG Group