A 1200 kVA, 6600 V 3 phase Y connected alternator has an effective resistance of 0.40 ohm and a reactance of 6 ohms per phase. It delivers full load current at 0.80 power factor lagging. What will be the terminal voltage for the same excitation and load current, if the power factor is 0.80 pf leading? Whole Solution.
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 V 3 phase Y connected alternator has an effective
resistance of 0.40 ohm and a reactance of 6 ohms per phase. It delivers
full load current at 0.80 power factor lagging. What will be the terminal
voltage for the same excitation and load current, if the power factor is
0.80 pf leading?
Whole Solution.
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