A 16 pole, 3Φ synchronous generator has a resultant air gap flux of 0.06 wb per pole. The flux is distributed sinusoidally over the pole. The stator has 2 slots per pole per phase and 4 conductors per slot are accommodated in two layers. The coils span is 150 electrical degrees. Calculate the phase and line induced voltage when the machine runs at 375 rpm. [Ans. Ep = 795.3 V, EL = 1377.5 V]
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 16 pole, 3Φ synchronous generator has a resultant air gap flux of 0.06 wb per pole. The flux is distributed sinusoidally over the pole. The stator has 2 slots per pole per phase and 4 conductors per slot are accommodated in two layers. The coils span is 150 electrical degrees. Calculate the phase and line induced voltage when the machine runs at 375 rpm.
[Ans. Ep = 795.3 V, EL = 1377.5 V]
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