US PATENT SUBCLASS 322 / 6
.~ By control of excitation

Current as of: June, 1999
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322 /   HD   ELECTRICITY: SINGLE GENERATOR SYSTEMS

5  DF  WITH GENERATOR POLARITY CONTROL {1}
6.~ By control of excitation

DEFINITION

Classification: 322/6

(under subclass 5) Subject matter wherein the generator polarity is controlled by controlling the generator excitation.

(1) Note. Such excitation control may take the form of: a. Reversal of field current. b. Changing the relative strengths

of opposed field windings. c. Alternate energization of opposed field windings.