A 1200 kVA, 6600 volts, three-phase wye connected alternator, has an effective resistance of 2.5 ohms and a reactance of 12 ohms per phase. Determine the inducedemf and the torque developed by the armature when fully loaded at 0.8 leading power factor
Synchronous Generator
In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.
Salient Pole Rotor
Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.
A 1200 kVA, 6600 volts, three-phase wye connected alternator, has an effective
resistance of 2.5 ohms and a reactance of 12 ohms per phase. Determine the inducedemf and the torque developed by the armature when fully loaded at 0.8 leading power factor.
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