Motor slip controller for AC motors

Details Motor slip controller for AC motors Motor slip controller for AC motors

1983-06-07

1984-11-13

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Power-factor control

318812, H02P 540

Patent

active

044828527

ABSTRACT:
An energy-saving controller for a multiphase AC induction motor controls the average voltage supplied to the motor windings by the use of a pair of back-to-back SCR's of opposite polarity connected to each winding. The conduction of the SCR's is varied in response to a signal derived from the voltage across each pair of SCR's corresponding to motor slip, the line voltage, and the current flow through each motor winding.

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