Modern Mining May 2015

COVER STORY

and move Husab rope shovels

Equipment Namibia for the supply of the moti- vators and the tender was accepted by Swakop Uranium as part of the total package including the Cat rope shovels and a suite of additional earthmoving machines and drills. Time constraints The physical size of this equipment makes it an abnormal load in height, width, length and mass. The trailer was custom built with

6,6 kV, 50 Hz. “This is the first time this gen- erating set has been used in this application. Indeed only two other C175 units have been installed in Southern Africa in standby gener- ating applications, and they have proved to be highly successful so far,” Richardt points out. “The C175 engine represents cutting edge technology in terms of engine size relative to power output and fuel efficiency.” Barloworld Power tendered to Barloworld

Above: The power requirement to start up a Cat 7495 rope shovel is more than 4 000 kVA, requiring two motivators running in parallel to perform the start-up. Once the shovel is running, one can be shut down.

The size of each motivator necessitated a custom built trailer with the generator mounted to a step deck and the electrical equipment enclosure and fuel tank mounted separately on the gooseneck.

May 2015  MODERN MINING  21