Determine the armature e.m.f. and load angle of generator, Electrical Engineering

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A 3-phase, wye-connected, 11 kV, 137.5 MVA turbo-alternator of 0.8 power factor lagging has a synchronous reactance XS = 1.4 Ω. Assume the machine to be ideal for convenience of analysis. Under these conditions, determine the following performance indicators of this generator:

A. The real and reactive power and line current.

B. The armature e.m.f. and load angle.

C. The maximum reactive power production at rated e.m.f.


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