Question

A two-pole Y-connected generator rated at 13.8 kV, 20 MVA, 0.8 p.f. leading is running at...

  1. A two-pole Y-connected generator rated at 13.8 kV, 20 MVA, 0.8 p.f. leading is running at 1800 rpm. The generator has a synchronous reac- tance of 8 Ω per phase (at 60 Hz) and a negligible armature resistance per phase. The generator is operated in parallel with an interconnected power network. Compute the following:

    (i) What is the torque angle of the generator at rated conditions?

  2. (ii) How many MW of power this generator can deliver?

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