A 4-pole, 3-phase 60 Hz wye-connected alternator having 60 slots with 2 conductors per slot in 2 layers. Fractional pitch winding with one side in slot No. 1, the other slot No. 13. Determine the flux per pole required to induce an emf of 6600 volts between lines.
A 4-pole, 3-phase, 60 Hz, wye-connected alternator has 24 slots with 40 turns in each coil and sinusoidally distributed flux per pole of 63 mWb. What is the terminal voltage on open circuit if the pitch factor is unity?
Two generators operating in parallel supply the following loads:
400 kW, unity power factor
1000 kW, 0.707 power factor lagging
600 kW, 0.90 power factor leading
One machine supplies 800 kW at 0.866 lagging power factor. What is the kVA load and power factor of the other machine.