A synchronous generator has been synchronized to an infinite grid of 13.8 kV and 60 Hz. The generator prime mover C/C is such that the no-load frequency is 62.5 Hz and the power slope is 1 MW/Hz. The AVR C/C (The reactive power against the terminal voltage C/C) is such that the zero reactive power voltage is 14.6 kV, while the slope is 0.4 MVAR/kV. Calculate: (a) the kVA loading of the generator and its power factor. (b) the settings of the prime mover and AVR such that the generator delivers 3 MW at 0.85 lagging power factor.
A synchronous generator has been synchronized to an infinite grid of 13.8 kV and 60 Hz. The generator prime mover C/C is such that the no-load frequency is 62.5 Hz and the power slope is 1 MW/Hz. The AVR C/C (The reactive power against the terminal voltage C/C) is such that the zero reactive power voltage is 14.6 kV, while the slope is 0.4 MVAR/kV. Calculate: (a) the kVA loading of the generator and its power factor. (b) the settings of the prime mover and AVR such that the generator delivers 3 MW at 0.85 lagging power factor.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:A synchronous generator has been
synchronized to an infinite grid of 13.8 kV
and 60 Hz. The generator prime mover C/C
is such that the no-load frequency is 62.5
Hz and the power slope is 1 MW/Hz. The
AVR C/C (The reactive power against the
terminal voltage C/C) is such that the zero
reactive power voltage is 14.6 kV, while the
slope is 0.4 MVAR/kV. Calculate:
(a) the kVA loading of the generator and its
power factor.
(b) the settings of the prime mover and AVR
such that the generator delivers 3 MW at
0.85 lagging power factor.
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