H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K27/00—AC commutator motors or generators having mechanical commutator
H02K27/04—AC commutator motors or generators having mechanical commutator having single-phase operation in series or shunt connection
H02K27/06—AC commutator motors or generators having mechanical commutator having single-phase operation in series or shunt connection with a single or multiple short-circuited commutator, e.g. repulsion motor