A three phase line has a reactance of 4.32 Ohms and resistance of 4.15 Ohms. The load at the receiving end is 3800 kW at 75% power factor lagging and the voltage at the sending end is 36 kV. Determine the voltage at the receiving end.

A short transmission line connects a step-up transformer on the source side with a series impedance of j0.5 ohms (referred to the primary) to a step-down transformer on the load side with a series impedance of 50 ohms (referred to the primary). The turn ratio of the step-up transformer is 1:10 and a no-load primary voltage of 13.2 (line-to-line) kV. The step-down transformer has a turn ratio of 15:1 and it has a Y-connected, balanced load of 0.667 +j 0.111 ohms connected to its secondary side. A capacitor bank of -j0.239  ohms is added parallel to the load. Assuming an ideal transmission line, the load voltage (line-to-neutral) would be:         A. 5118 V   B. 6.2 kV   C. 8865 V   D. None of the other choices are correct   E. 4225 V

In the following network, the voltage magnitudes at all buses are equal to 1 p.u., the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to j1 p.u. (1) (2. P₂ = 0.1 p.u. P3 = 0.2 p.u. The voltage phase angle 83 in radian at bus 3 is (Assume one of the generator bus as slack bus and sin-¹ (0.1) = 0.1 rad) (a) -0.1 (b) -0.2 (c) 0.1 (d) 0