Example 37.28. A given 3-MVA, 50-Hz, 11-kV, 3-0, Y-connected alternator when supplying 100 A at zero p.f. leading has a line-to-line voltage of 12,370 V; when the load is removed, the terminal voltage falls down to 11,000 V. Predict the regulation of the alternator when supplying full-load at 0.8 p.f. lag. Assume an effective resistance of 0.4 2 per phase.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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O
D
V-7142V
8=90°
6350V
40
Eo
✈1
totam
timber O 0
10
E6
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➤I
Transcribed Image Text:O D V-7142V 8=90° 6350V 40 Eo ✈1 totam timber O 0 10 E6 V=6350V 1240V (= IX,) 63V=IRa ➤I
Example 37.28. A given 3-MVA, 50-Hz, 11-kV, 3-0, Y-connected alternator when supplying 100
A at zero p.f. leading has a line-to-line voltage of 12,370 V; when the load is removed, the terminal
voltage falls down to 11,000 V. Predict the regulation of the alternator when supplying full-load at
0.8 p.f. lag. Assume an effective resistance of 0.42 per phase.
aldateil
Transcribed Image Text:Example 37.28. A given 3-MVA, 50-Hz, 11-kV, 3-0, Y-connected alternator when supplying 100 A at zero p.f. leading has a line-to-line voltage of 12,370 V; when the load is removed, the terminal voltage falls down to 11,000 V. Predict the regulation of the alternator when supplying full-load at 0.8 p.f. lag. Assume an effective resistance of 0.42 per phase. aldateil
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