Question

Please be clear in handwriting and concept.

Consider a 2.5 MVA, gearless, direct-drive wind turbine generator controlled to rotate at 17 rpm. The generator produces power at 50 Hz.

The rotor flux is 537 mWb and there are 750 turns per phase.

Specify the number of poles

and the resulting open-circuit line voltage of the generator considering the phase windings are connected in a Wye configuration.

Answer 1