| Abstract |
The environmental conditions encountered by electric traction drives in deep mines down to 4000 m are extremely harsh, due to high ambient temperatures, high humidity, dust and poor track conditions. In addition flooded sections of track are encountered from time to time. The paper describes a drive system for an 84 V battery powered mine locomotive under these conditions, consisting of a power inverter with natural cooling and a sealed induction traction motor. Specifications, a block diagram, measurements and illustrations of the developed system are given. |
