Assertion: motor's stator | /r/CapableOf | lead the first
Facets:
value: to provide the required electrical power
type: PURPOSE
Source sentences:
text: The total stator current in each phase winding is then the sum of a sinusoidal component to produce the magnetic field and another sinusoid, leading the first by one-quarter of a cycle, or 90°, to provide the required electrical power.