GATE EE 2017 EE-2 Q15: Power Systems

The figure shows the per-phase representation of a phase-shifting transformer connected between buses 1 and 2, where

is a complex number with non-zero real and imaginary parts.

For the given circuit,

and

are bus admittance matrix and bus impedance matrix, respectively, each of size

. Which one of the following statements is true?

Your answerChoose one option.

Both

and

are symmetric

is symmetric and

is unsymmetric

is unsymmetric and

is symmetric

Both

and

are unsymmetric

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