A three-phase balanced Y-connected load with series impedances of ((6+j 24) Omega) per phase and mutual impedance

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A three-phase balanced Y-connected load with series impedances of \((6+j 24) \Omega\) per phase and mutual impedance between any two phases of \(j 3 \Omega\) is supplied by a three-phase unbalanced source with line-to-neutral voltages of \(V_{a n}=200 \angle 25^{\circ}, V_{b n}=100 \angle-155^{\circ}, V_{c n}=80 \angle 100^{\circ} \mathrm{V}\). The load and source neutrals are both solidly grounded. Determine:

(a) the load sequence impedance matrix,

(b) the symmetrical components of the line-to-neutral voltages,

(c) the symmetrical components of the load currents, and

(d) the load currents.

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Power System Analysis And Design

ISBN: 9781305632134

6th Edition

Authors: J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

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