Two 220V generators operate in parallel. One machine has a terminal voltage of 270 V on no-load and 220 V when supplying 35 A. The second machine has a voltage of 280 V on no-load and 220 V when supplying 50 A. Calculate: (i)the output voltage; and (ii) current of each machine when total current is 60 A. Assume the external characteristics to be linear. [Ans. 236.2 V, 23.6A, 36.4 A]
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 220V generators operate in parallel. One machine has a terminal voltage of 270 V on no-load and 220 V when supplying 35 A. The second machine has a voltage of 280 V on no-load and 220 V when supplying 50 A.
Calculate: (i)the output voltage; and (ii) current of each machine when total current is 60 A. Assume the external characteristics to be linear. [Ans. 236.2 V, 23.6A, 36.4 A]
Step by step
Solved in 3 steps
