An 11kV volts three phase wye connected turbo alternator has a synchronous reactance of 6 ohms and a negligible resistance per phase. When the field current is 8 A, the open circuit voltage is 12 kV. Determine the armature current and power factor when the alternator develop a maximum power.
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.
An 11kV volts three phase wye connected turbo alternator has a
synchronous reactance of 6 ohms and a negligible resistance per phase.
When the field current is 8 A, the open circuit voltage is 12 kV. Determine
the armature current and power factor when the alternator develop a
maximum power.
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