Assertion: electric motor's torque | /r/HasProperty | proportional
Facets:
value: roughly
type: DEGREE
value: to the armature current
type: LOCATION
value: directly
type: MANNER
value: to the slip
type: TRANSITIVE-OBJECT
value: times
type: TEMPORAL
value: to the instantaneous line voltage
type: OTHER
value: to the current
type: OTHER
Source sentences:
text: Thus, with a constant-frequency, constant-voltage supply, the magnitude of the rotating magnetic field is held constant, and the torque is roughly proportional to the power component of the supply current.
text: Generally, the rotational speed of a DC motor is proportional to the EMF in its coil (= the voltage applied to it minus voltage lost on its resistance), and the torque is proportional to the current.
text: Torque in a series-wound motor is approximately proportional to the square of the current.
text: The torque is thus proportional to the instantaneous line voltage times the instantaneous load current, automatically correcting for power factor.
text: Thus the torque is directly proportional to the armature current.
text: Since the rotor current is proportional to the relative motion between the rotating field and the rotor speed, the rotor current and hence the torque are both directly proportional to the slip.