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We recently supplied 18 VFD skids for a Canadian Potash mine to control their underground conveyors.

  • Each skid has 2 x 300 hp VFDs and is designed to control multiple motors.
  • Each conveyor has either 2 or 4 x 250 hp motors, and the VFDs are operating in a torque sharing mode.
  • One VFD receives the speed command, and the other VFDs follow it in torque mode to evenly split the torque between all the motors.