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Electric Circuits and Networks, Ist Edition by Pearson
book

Electric Circuits and Networks, Ist Edition by Pearson

by K. S. Suresh Kumar
May 2024
Intermediate to advanced content levelIntermediate to advanced
840 pages
45h 20m
English
Pearson India
Content preview from Electric Circuits and Networks, Ist Edition by Pearson
A phase angle of –240º is the same as 120º and a phase angle of 240º phase is
the same as –120º. Therefore, the three terms in the sums within curly brackets in the pre-
ceding equation form balanced three-phase sets. Sum of a three-phase balanced set is zero
for all time instants. Therefore,
Thus, the total power delivered to the three-phase load is seen to be a constant.
If the power dissipated in the three branches of a balanced three-phase load acts on
the same physical system, then, a balanced three-phase source delivers active power to the
load with zero power pulsation. The double-frequency power pulsation in the case of a
single-phase AC ...
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Publisher Resources

ISBN: 9781299447028