The following data are obtained for a three-phase 10 MVA, 14kV, star connected synchronous machine. If = 200 A O.C. (kV) voltage = 14 kV Airgap line voltage (kV) = 18 kV Short circuit current = 490 A Determine the saturated and unsaturated reactance If Ra = 0.07 ohm
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.
The following data are obtained for a three-phase 10 MVA, 14kV, star connected synchronous machine.
If = 200 A
O.C. (kV) voltage = 14 kV
Airgap line voltage (kV) = 18 kV
Short circuit current = 490 A
Determine the saturated and unsaturated reactance If Ra = 0.07 ohm
Step by step
Solved in 2 steps
