Air conditioning systems with oversped induction motors

An air conditioning system, comprising:

• a refrigeration circuit having at least one fan or blower;
• a three phase alternating current (AC) induction motor coupled to the at least one fan or blower and comprising windings configured to be interconnected in a first voltage configuration and a second voltage configuration, the second voltage being greater than the first voltage, wherein the windings are interconnected in the first voltage configuration;
• three phase power conductors configured to provide an output voltage equal to approximately the second voltage;
• and
• a variable frequency drive configured to receive power from the three phase power conductors and to control operation of the three phase AC induction motor.

An air conditioning system, comprising:

• a refrigeration circuit having at least one fan or blower;
• a multi-voltage induction motor coupled to the at least one fan or blower and comprising windings configured to be wired in a first voltage configuration and a second voltage configuration, the second voltage being greater than the first voltage, wherein the windings are wired in the first voltage configuration;
• a variable frequency drive coupled to the multi-voltage induction motor and configured to increase an operating speed of the multi-voltage induction motor to a level exceeding a rated speed while maintaining a rated voltage to frequency ratio of the multi-voltage induction motor;
• and
• power conductors configured to provide the variable frequency drive an input voltage equal to approximately the second voltage for operation of the multi-voltage induction motor.