AIR CONDITIONING SYSTEMS WITH OVERSPED INDUCTION MOTORS
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United States of America Patent
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-
N/A
Issued Date -
Feb 10, 2011
app pub date -
Jun 21, 2010
filing date -
Aug 7, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Air conditioning systems including a refrigeration circuit having at least one fan or blower are provided. The air conditioning systems also include a multi-voltage induction motor coupled to the fan/blower. The multi-voltage induction motor includes motor windings adapted for use when the motor windings are wired in a first voltage wiring configuration and a second voltage wiring configuration, the second voltage being greater than the first voltage. The multi-voltage induction motor may be wired in the first voltage wiring configuration, and a variable frequency drive may be adapted to maintain an operating voltage to frequency ratio of the multi-voltage induction motor at approximately a voltage to frequency design ratio of the multi-voltage induction motor. Also provided are power conductors adapted to transmit power to the variable frequency drive at a voltage approximately equal to the second voltage for operation of the multi-voltage induction motor.
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