A 100-km long, 3-phase, 50-Hz transmission line has following line constants: Resistance/phase/km = 0•1 Ω Reactance/phase/km = 0•5 Ω Susceptance/phase/km = 10 × 10−6 S If the line supplies load of 20 MW at 0•9 p.f. lagging at 66 kV at the receiving end, calculate by nominal π method : (i) sending end power factor (ii) regulation (iii) transmission efficiency

a. Determine the sending-end voltage, current, power factor, and real power. 2= 40 +j175 0 and a total shunt admittance Y i10'S. The line delivers 3 MW at 220 kV and 0.9 power factor lagging. 9.34 A three-phase, 60-Hz, 300-mi transmission line has a total series impedance a. Determine the sending-end voltage, current, power factor, and real power.

2. A 200-km, 230-kV, 60-Hz three-phase line has a positive-sequence series impedance z = 0.07 + j0.58 ohms/km and a positive-sequence shunt admittance y = j4.33 x 10^-6 S/ km. At full load, the line delivers 350 MW at 0.95 pf lagging and at 220 kV. Using the nominal pi circuit, calculate: (a) the ABCD parameters (b) the sending-end voltage and current, and (c) the percent voltage regulation.

A 3-ph, 60 Hz, 200 km long, 220 kV transmission line has per km per phase constants of resistance 0.033 Ω, inductive reactance 0.33 Ω, capacitive susceptance 3.3x10 -6 mho. The load at the receiving end of the line is 500 MW at 0.95 power factor leading and voltage has dropped to 209 kV. Using the PI model, calculate the voltage, current and power factor at the sending end.     Please answer in typing format solution please only typing format Please I will like it please reply to