Question

Two single-phase transformers in parallel connection, supplies load of 500 kVA, at 0.8 pf lagging at 400 V. Their equivalent impedance referred to secondary windings are (2 + j3)$\Omega$ and (2.5 + j5)$\Omega$ respectively. The kVA supplied by transformer 1 is_______

• A. 304.51

Answer 1

The correct option is A 304.51
$S_1=500\times \frac{2.5+j5}{2+j3+2.5+j5}$

$S_1=304.51kVA$