We are currently operating a 1655GPM slurry pump at 706rpm with 75' of head. A GE AC2000 drive runs the 400hp 460v motor at about 130A (30%). We are looking into removing the reducer and direct-coupling a 150hp motor to run more efficiently (estimated 10% increase just in the motor, not sure...
Hi,
We operate ball mills with dual-coupled 3500hp 4160v wound rotor induction motors. We have recently experienced frequent arcing of the slip rings which seems to start on the center ring. The arcing damages the ring badly which requires us to shutdown the mill to sand it smooth again. The...
