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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A 30-kVA 8000/230-V distribution transformer has an impedance referred to the primary of 20 + j100 W. The components of the excitation branch referred to the primary side are
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(a) If the primary voltage is 7967 V and the load impedance is ZL = 2.0 + j0.7 W, what is the secondary voltage of the transformer? What is the voltage regulation of the transformer?
(b) If the load is disconnected and a capacitor of –j3.0 W is connected in its place, what is the secondary voltage of the transformer? What is its voltage regulation under these conditions?     Â
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