A 1000 KVA, 3000 v, 50 Hz, three-phase delta-connected alternator has an effective armature resistance of 0.2 Ω. A field current of 40 A produces a short- circuit current of 200 A, and an open-circuit voltage of 1040 V (line-to-line). Calculate the full load percentage voltage regulation at a power factor of 0.8 lagging. How will the regulation be affected if the alternator delivers its full load output at a power factor of 0.8 leading?

A 1000 KVA, 3000 v, 50 Hz, three-phase delta-connected alternator has an effective armature resistance of 0.2 Ω. A field current of 40 A produces a short- circuit current of 200 A, and an open-circuit voltage of 1040 V (line-to-line). Calculate the full load percentage voltage regulation at a power factor of 0.8 lagging. How will the regulation be affected if the alternator delivers its full load output at a power factor of 0.8 leading?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter31: Three-phase Alternators

Section: Chapter Questions

Problem 1RQ: What conditions must be met before two alternators can be paralleled together?

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