US PATENT SUBCLASS 318 / 714
.~.~.~ Responsive to armature current

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

700  DF  SYNCHRONOUS MOTOR SYSTEMS {7}
705  DF  .~ Synchronization systems {4}
712  DF  .~.~ With field excitation application {3}
714.~.~.~ Responsive to armature current

DEFINITION

Classification: 318/714

Responsive to armature current:

(under subclass 712) Subject matter having means sensing the current in the alternating current circuit to control the switching means to connect a source of direct current to the direct current winding of the motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

521, for motor field or secondary circuit control generally.

717, for synchronous motor field circuits responsive to a motor condition.