A generator is rated 100 MW, 13.8 kV and 90% power. A wye-connected alternator was tested for its effective resistance. The ratio of the effective resistance to ohmic resistance was previously determined to be 1.35. A 12 V battery was connected across two terminals and the ammeter read 120 amperes. What is the per phase effective resistance of the alternator?
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 generator is rated 100 MW, 13.8 kV and 90% power. A wye-connected alternator was tested for its effective resistance. The ratio of the effective resistance to ohmic resistance was previously determined to be 1.35. A 12 V battery was connected across two terminals and the ammeter read 120 amperes. What is the per phase effective resistance of the alternator?
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