US PATENT SUBCLASS 318 / 154
.~.~ Control of excitation (field) circuit of both

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

140  DF  GENERATOR-FED MOTOR SYSTEMS HAVING GENERATOR CONTROL {9}
153  DF  .~ Control of both the generator and the motor {1}
154.~.~ Control of excitation (field) circuit of both

DEFINITION

Classification: 318/154

(under subclass 153) Subject matter in which the control means effect control of the field or secondary circuit of both the generator and of the motor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

521, and the subclasses specified in the Notes thereto for motor field or secondary circuit control in motor control systems in general.

SEE OR SEARCH CLASS

322, Electricity: Single Generator Systems,

59+, for generator field circuit control.