A brushed DC motor with a motor constant of 0.85 is used as traction motor of a...
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A brushed DC motor with a motor constant of 0.85 is used as traction motor of an electric vehicle. If the motor has the following specifications at the rated condition (in forward motoring mode)
Armature current: 50 A
- Armature resistance: 20 mΩ
- Back EMF: 150 V
- No load torque of 4 Nm.
a. Determine the rated torque and speed of the motor.
b. Determine the efficiency of the motor.
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