An 11-kV, 1000-kVA, 3-phase, Y-connected alternator has a resistance of 2 per phase. The open-circuit and full-load zero power factor characteristics are given below. Find the voltage regulation of the alternator for full load current at 0.8 p.f. lagging by Potier method ? Field current 40 50 110 140 180 (A) O.C.C. 3350 4000 7200 7900 8650 voltage(V/ph) zero p.f. load voltage(V/ph) 860 4900 6000 7200

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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An 11-kV, 1000-kVA, 3-phase, Y-connected alternator has a resistance of 2 n
per phase. The open-circuit and full-load zero power factor characteristics
are given below. Find the voltage regulation of the alternator for full load
current at 0.8 p.f. lagging by Potier method ?
Field current
40
50
110
140
180
(A)
О.С.С.
3350
4000
7200
7900
8650
voltage(V/ph)
zero p.f. load
voltage(V/ph)
860
4900
6000
7200
Transcribed Image Text:An 11-kV, 1000-kVA, 3-phase, Y-connected alternator has a resistance of 2 n per phase. The open-circuit and full-load zero power factor characteristics are given below. Find the voltage regulation of the alternator for full load current at 0.8 p.f. lagging by Potier method ? Field current 40 50 110 140 180 (A) О.С.С. 3350 4000 7200 7900 8650 voltage(V/ph) zero p.f. load voltage(V/ph) 860 4900 6000 7200
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