Electrical Machine I

The armature and field resistances of a 200 V DC shunt motor are $0.12\ \Omega$ and $250\ \Omega$ respectively. The rotational loss of the motor is $250\ \text{W}$. The full load line current is $10\ \text{A}$ and motor rpm is 1500. Determine;

(i) The mechanical power developed.

(ii) The power output

(iii) The load torque

(iv) The full load efficiency