A separately excited DC motor is operating from a three-phase semi converter at a
speed of 1400 rpm, with phase input voltage of 330 V (peak-to-peak), and back emf of
120 V. The converter is fired symmetrically with =
The armature resistance of
0.5 Ω. Calculate average current and the motor developed torque?
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What type of motor has the highest starting torque?
DC motor
DC motor has high starting torque.In a series motor the same current flows through the armature and the field winding. The torque is therefore proportional to the square of the current. The current is set by the supply voltage and the back-emf generated in the armature.
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