Question

A single phase 9.6 kVA, 500 V / 1.5 kV

transformers has an impedance of 1.302 Ω

with respect to primary side. Solve for per-

unit impedance with respect to primary and

secondary sides.​

Answer 1

Answer:

Q1. A Single phase 9.6 KVA, 500V/1.5KV transformer has an impedance of 1.302 Q with respect to primary side. Find its p.u impedance with respect to primary and secondary side? Q2. A generator is rated 500MVA, 22KV. Its Y connected winding has a reactance of 0.9 p.u. Find the p.u value of the reactance of the generator winding if the generator is working in a circuit for which the bases are specified as 100MVA, 20KV? Q3. For the single line diagram of the power system shown below, Draw the Impedance diagram? OY Q4. Determine the Bus admittance matrix for the power system represented in the figure given below. (4 marks) 2-* -ja ja lo j