The synchronous machine was operating stably at point-a as shown in the figure. Due to come temporary disturbance machine starts doing the hunting Given that the inertia constant H = 5 MJ/MVA and supply frequency is 60Hz. Find the oscillating frequency of the rotor of the machine in radian/sec.

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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.