.~.~ Plural, diverse or diversely controlled armature windings {2}
289
.~.~.~ Phase-reversal
DEFINITION
Classification: 318/289
(under subclass 288) Subject matter in which the motor is an alternating current motor having two or more phase windings and in which means are provided for reversing the time phase sequence of the currents supplied to two or more of the phase windings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121, for reciprocating or oscillating motor systems with means for reversing the motor by phase reversal.
207, for induction motor systems with means for reversing the motor by phase reversal.
373+, for motor systems having means for braking the motors by "plugging" which may be effected by phase reversal.
496, and the subclasses specified in the Notes thereto, for miscellaneous motor systems where the motor has polyphase windings.
