Q2. A 4-pole, 200 V, lap-connected shunt motor running at 1500 r.p.m. and draw currents of 50 from the mains. It has 500 conductors in it is armature slots. It has an amature and shunt field...

Q2. A 4-pole, 200 V, lap-connected shunt motor running at 1500 r.p.m. and draw currents of 50 from the mains. It has 500 conductors in it is amature slots. It has an amature and shunt field resistances of (0.05 ohm) and (200 ohm), (brush loss may be ignored). d) (e) commercial efficiency.

Extracted text: Q2. A 4-pole, 200 V, lap-connected shunt motor running at 1500 r.p.m. and draw currents of 50 from the mains. It has 500 conductors in it is armature slots. It has an amature and shunt field resistances of 0.05 N and 200 2,(brush loss may be ignored).Find (a) total torque developed by armature (b) useful torque if the output mechanical power is 8kW (c) lost torque (d) (e) commercial efficiency.