×

Medium voltage power controller

  • US 8,820,105 B2
  • Filed: 11/22/2013
  • Issued: 09/02/2014
  • Est. Priority Date: 12/22/2004
  • Status: Active Grant
First Claim
Patent Images

1. A system comprising:

  • a compressor, a condenser and an evaporator in fluid communication, the compressor, condenser and evaporator being mounted to form an integral unit;

    a motor connected to the compressor to drive the compressor, the motor being mounted on the unit, the motor being powered by a voltage greater than 600 volts and less than 25,000 volts;

    a variable speed drive, the variable speed drive being operable to provide a variable current and variable voltage to the motor to operate the motor at variable speeds, the variable speed drive comprising;

    a first enclosure mounted on the unit near the motor;

    a second enclosure mounted next to the unit;

    an inverter electrically connected to the motor, the inverter being mounted in the first enclosure; and

    a disconnect switch connected to a supply voltage for the variable speed drive, the disconnect switch being mounted in the second enclosure.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×