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5. A 5-MVA, 6.6 kV, 3-0, star-connected alternator has a resistance of 0.075 2 per phase. Estimate the regulation for a load of 500 A at p.f. (a) unity and (b) 0.9 leading (c) 0.71 lagging from the following open-circuit and full-load zero power factor curve. Field current (A) Open-circuit terminal voltage (V) Saturation curve zero p.f. 32 3100 50 4900 1850 75 6600 4250 100 7500 5800 140 8300 7000

5. A 5-MVA, 6.6 kV, 3-0, star-connected alternator has a resistance of 0.075 2 per phase. Estimate the regulation for a load of 500 A at p.f. (a) unity and (b) 0.9 leading (c) 0.71 lagging from the following open-circuit and full-load zero power factor curve. Field current (A) Open-circuit terminal voltage (V) Saturation curve zero p.f. 32 3100 50 4900 1850 75 6600 4250 100 7500 5800 140 8300 7000

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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5. A 5-MVA, 6.6 kV, 3-0, star-connected alternator has a resistance of 0.075 2 per phase. Estimate the regulation for a load of 500 A at p.f. (a) unity and (b) 0.9 leading (c) 0.71 lagging from the following open-circuit and full-load zero power factor curve. Field current (A) Open-circuit terminal voltage (V) Saturation curve zero p.f. 32 3100 50 4900 1850 75 6600 4250 100 7500 5800 140 8300 7000
Transcribed Image Text:5. A 5-MVA, 6.6 kV, 3-0, star-connected alternator has a resistance of 0.075 2 per phase. Estimate the regulation for a load of 500 A at p.f. (a) unity and (b) 0.9 leading (c) 0.71 lagging from the following open-circuit and full-load zero power factor curve. Field current (A) Open-circuit terminal voltage (V) Saturation curve zero p.f. 32 3100 50 4900 1850 75 6600 4250 100 7500 5800 140 8300 7000
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