3. A 230 V series motor is taking 50 A. Resistance of armature and series field windings is 0.2 £2 and 0.12 respectively. Calculate: (a) brush voltage (c) power wasted in armature (b) back e.m.f. (d) mechanical power developed [(a) 215 V (b) 205 V (c) 500 W (d) 13.74 h.p.] (10.25 kW)

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Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.