21) Two 3-phase 6.6kV, Star-connected alternators supply a load of 3000kW at 0.8pf lagging. The synchronous impedance per phase of machine A is (0.5 +j10)Q and machine B is (0.4+j12) Q. The excitation of machine A is adjusted so that it delivers 150A at a lagging pf and the governors are set so that the load is shared equally between the machines. Find the line to line voltage of alternator B.
21) Two 3-phase 6.6kV, Star-connected alternators supply a load of 3000kW at 0.8pf lagging. The synchronous impedance per phase of machine A is (0.5 +j10)Q and machine B is (0.4+j12) Q. The excitation of machine A is adjusted so that it delivers 150A at a lagging pf and the governors are set so that the load is shared equally between the machines. Find the line to line voltage of alternator B.
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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Transcribed Image Text:21) Two 3-phase 6.6kV, Star-connected alternators supply a load of 3000kW at 0.8pf lagging. The
synchronous impedance per phase of machine A is (0.5 +j10)Q and machine B is (0.4+j12) Q. The
excitation of machine A is adjusted so that it delivers 150A at a lagging pf and the governors are
set so that the load is shared equally between the machines. Find the line to line voltage of
alternator B.
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