<p><span style="font-size:14px">Refer figure 4.12.</span></p>

<p><img alt="" src="https://edupmquestionhelp.s3.ap-south-1.amazonaws.com/hint/uploads/images/16163038581616303858.jpg" style="height:327px; width:500px" /></p>

<p><span style="font-size:14px">100 MVA and 50 MVA transformers are DY11 and star point solidly grounded for both. For both transformers, Z<sub>1</sub> = Z<sub>2</sub> = Z<sub>0</sub>. For 132 kV line, Z<sub>0</sub> = 2Z<sub>1</sub> and for 66 kV line Z<sub>0</sub> = 1.5 Z<sub>1</sub>. Z<sub>f</sub> is assumed to be zero.</span></p>