Bringing New Life to DC Haul Trucks with an AC Retrofit Package

By Ben Balbach, Heavy Industry and Power Systems Manager, Flanders

With custom designed AC wheel motors built into the DC motor frames and a high performance liquid cooled IGBT drive package that drops into the existing DC drive footprint, old DC haul trucks can now meet or exceed the capability of modern AC haul trucks. An all new, open and flexible industry standard control package makes troubleshooting and diagnostic simple and streamlined. Advanced traction control with a virtual limited slip rear differential greatly improves truck tracking in slippery haul road conditions.