Assertion: induction motor | /r/CapableOf | share same field coils
Facets:
value: as the synchronous motor
type: MANNER
value: to ensure
type: PURPOSE
Source sentences:
text: Various other designs use a small induction motor (which may share the same field coils and rotor as the synchronous motor) or a very light rotor with a one-way mechanism (to ensure that the rotor starts in the "forward" direction).