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Q#1 Load Flow Analysis GATE EE 2017 MCQ +1 mark -0.33 marks

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.

Z:\PY\EE\Redreaw figure\Network\updated\111-15.jpg

For the given circuit,  and  are bus admittance matrix and bus impedance matrix, respectively, each of size 2 × 2. Which one of the following statements is true?

Both  and  are symmetric

 is symmetric and  is unsymmetric

 is unsymmetric and  is symmetric

Both  and  are unsymmetric

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