A 3Ø, Y-connected alternator is rated at 1,600KVA, 13.5KV. The armature effective AC resistance per phase is 1.5Ω. The percentage regulation for a load of 1,280kW at unity power factor is 3.5%. Determine:(a) synchronous reactance of the alternator(b) %VR at full-load 0.8pf leading(c) What is the effect on %VR value if taken at half-load lagging pf? Justify andexplain briefly your answer on one(1) sentence. A 3Ø, Y-connected alternator is rated at 1,600KVA, 13.5KV. The armature effective ACresistance per phase is 1.52. The percentage regulation for a load of 1,280kW at unitypower factor is 3.5%. Determine:(a) synchronous reactance of the alternator(b) %VR at full-load 0.8pf leading(c) What is the effect on %VR value if taken at half-load lagging pf? Justify andexplain briefly your answer on one(1) sentence.

Three phase star connection is used in polyphase electrical device.Three phase star connection…

Answered: A 3Ø, Y-connected alternator is rated…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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A 3Ø, Y-connected alternator is rated at 1,600KVA, 13.5KV. The armature effective AC resistance per phase is 1.5Ω. The percentage regulation for a load of 1,280kW at unity power factor is 3.5%. Determine:
(a) synchronous reactance of the alternator
(b) %VR at full-load 0.8pf leading
(c) What is the effect on %VR value if taken at half-load lagging pf? Justify and
explain briefly your answer on one(1) sentence.

A 3Ø, Y-connected alternator is rated at 1,600KVA, 13.5KV. The armature effective AC
resistance per phase is 1.52. The percentage regulation for a load of 1,280kW at unity
power factor is 3.5%. Determine:
(a) synchronous reactance of the alternator
(b) %VR at full-load 0.8pf leading
(c) What is the effect on %VR value if taken at half-load lagging pf? Justify and
explain briefly your answer on one(1) sentence.

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