A. Given a shunt DC motor. The input current I, = 100 A, RA = 0.01 Q, RE = 20 0, and the terminal voltage Vr 200 V. Let the mechanical and friction losses Pmand f 0.5 kW and the core losses Pore =0.25 kW. Do the following: %3D 1. Calculate the power delivered to the armature circuit (Rotor Circuit). 2. Calculate the efficiency of the motor. 3- Sketch the torque - speed characteristic for the motor.

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A. Given a shunt DC motor. The input current I, = 100 A, RA = 0.01 Q, RF = 20 0, and the
terminal voltage Vr 200 V. Let the mechanical and friction losses Pmand f 0.5 kW and the
core losses Peore =0.25 kW. Do the following:
%3D
%3D
1. Calculate the power delivered to the armature circuit (Rotor Circuit).
2. Calculate the efficiency of the motor.
3- Sketch the torque- speed characteristic for the motor.
Transcribed Image Text:A. Given a shunt DC motor. The input current I, = 100 A, RA = 0.01 Q, RF = 20 0, and the terminal voltage Vr 200 V. Let the mechanical and friction losses Pmand f 0.5 kW and the core losses Peore =0.25 kW. Do the following: %3D %3D 1. Calculate the power delivered to the armature circuit (Rotor Circuit). 2. Calculate the efficiency of the motor. 3- Sketch the torque- speed characteristic for the motor.
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