(under subclass 700) Subject matter which includes means to reduce or eliminate variations in the speed of the energized synchronous motor from the synchronous speed.
(1) Note. Braking to maintain the synchronous motor speed constant is considered to be "running speed control", see Motor Braking Control of the general class notes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
161, for motors having flywheels or other massive rotary member which may act to reduce hunting.
448, and the subclasses specified in the notes thereto for automatic motor systems which include antihunting means.
704+, for synchronous motor synchronization systems which includes squirrel cage or other short circuited windings which may act as antihunting or damping means during running speed operation.
