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A four-pole three-phase synchronous generator has Xs = 1.82 per unit and ratings of 60 Hz, 24 kV, and 650 MVA. The generator operates at the following point: 60 Hz, armature voltage of 24 kV, output apparent power of 650 MVA, and power factor of 0.900 lagging.

1. Calculate the output power in MW and per unit, the output reactive power in MVAr and per unit, the armature current in A and per unit, and the excitation voltage Eaf in per unit. Sketch the phasor diagram.

2. Repeat problem 1 but change the power factor to 0.900 leading, holding all else the same.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M9841417

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