The shaft torque of a diesel motor driving a 100V DC shunt wound generator is 25Nm. The armature current of a generator is 16A at this value of torque. If the shunt field regulator is adjusted so that the flux is reduced by 15% the torque increases to 35 Nm. Determine the armature current at this new value of torque
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 shaft torque of a diesel motor driving a 100V DC shunt wound generator is 25Nm. The armature current of a generator is 16A at this value of torque. If the shunt field regulator is adjusted so that the flux is reduced by 15% the torque increases to 35 Nm. Determine the armature current at this new value of torque.
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