A 3-ph, 50 Hz, 150 km length O.H.T.L. supplies a load with P MW load at 0.80 lag P.f. and 110 kV where P=24 This T.L has a resistance of 0.11 Ω/km and an inductance per phase of 1.65 mH/ km and a shunt capacitive reactance per phase of 0.333 MΩ.km. Using nominal T circuit, Find: 1- Constants A, B, C, and D. 2- Voltage drop across this T.L. 3- Transmission line efficiency. 4- The loadability of transmission line (approximate calculations). 5- Suggest a way to decrease the voltage drop to 40% of its value calculated in point 2. Verify your answer. 6- Suggest a way to increase the loadability to double of the value calculated in point 4. Verify your answer. 7- Wave length and velocity of propagation across this transmission line.
A 3-ph, 50 Hz, 150 km length O.H.T.L. supplies a load with P MW load at 0.80 lag P.f. and 110 kV where P=24
This T.L has a resistance of 0.11 Ω/km and an inductance per phase of 1.65 mH/ km and a shunt capacitive reactance per phase of 0.333 MΩ.km. Using nominal T circuit, Find:
1- Constants A, B, C, and D.
2- Voltage drop across this T.L.
3- Transmission line efficiency.
4- The loadability of transmission line (approximate calculations).
5- Suggest a way to decrease the voltage drop to 40% of its value calculated in point 2. Verify your answer.
6- Suggest a way to increase the loadability to double of the value calculated in point 4. Verify your answer.
7- Wave length and velocity of propagation across this transmission line.
Step by step
Solved in 3 steps with 23 images