A three-phase, 318.75 kVA, 2300 V alternator has an armature resistance of 0.35 ohms/phase and a synchronous reactance of 1.2 ohms/phase. Determine the voltage regulation at full-load kVA, 0.8 power factor lagging and rated voltage. a. 5.50% b. 6.12% c. 4.52% d. 7.10%
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 three-phase, 318.75 kVA, 2300 V alternator has an armature resistance of 0.35 ohms/phase and a
synchronous reactance of 1.2 ohms/phase. Determine the voltage regulation at full-load kVA, 0.8 power
factor lagging and rated voltage.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
