A 4 pole, 3 phase, star-connected alternator has 24 slots with 12 conductors per slot and the flux per pole is 0.1 Wb. Calculate the line emf generated when the alternator is driven at 1500 rpm. All phase conductors are connected in series. Assume sinusoidal emf. (Ans = 1785 V)

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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.