US PATENT SUBCLASS 318 / 157
.~ Generator speed control


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

140  DF  GENERATOR-FED MOTOR SYSTEMS HAVING GENERATOR CONTROL {9}
157.~ Generator speed control


DEFINITION

Classification: 318/157

(under subclass 140) Subject matter in which means are provided for controlling the speed of the generator by controlling the driving means therefor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

700+, for this subject matter where the system includes means for controlling the speed of the generator combined with other control means for the generator.

SEE OR SEARCH CLASS

290, Prime-Mover Dynamo Plants, for variable speed nonelectric prime movers which drive generators.

322, Electricity: Single Generator Systems,

14+, for combined control of generator and driving means; subclasses 29+ for automatic control of generator or driving means control in response to speed or frequency of the generator; subclasses 38+ for generator driving means control; subclasses 40+ for power transmitting mechanism control.