Two 6600 V, star connected alternators in parallel supply the following loads 1. 400 kW at unity pf. 2. 400 kW at 0.85 pf. Lag. 3. 300 kW at 0.8 pf. Lag. 4. 800 kW at 0.7 pf. Lag. One alternator supplies Ia = 100 A at 0.9 lagging P.F. Determine output current and power factor of other machine.
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.
Two 6600 V, star connected alternators in parallel supply the following loads 1. 400 kW at unity pf. 2. 400 kW at 0.85 pf. Lag. 3. 300 kW at 0.8 pf. Lag. 4. 800 kW at 0.7 pf. Lag. One alternator supplies Ia = 100 A at 0.9 lagging P.F. Determine output current and power factor of other machine.
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