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A 3-ph, 50 Hz, 150 km length O.H.T.L. supplies a load with P 44 MW load at 0.85 lag P.f. and 69 kV This T.L has a resistance of 0.232 Ω/km and an inductive reactance of 0.783 Ω/km and the capacitance to neutral is 0.0446 μF/km. Using nominal π circuit, Find: 1- Constants A, B, C, and D. 2- Sending end voltage. 3- Sending end current 4- Voltage regulation of this T.L. 5- Transmission line efficiency. 6- Draw with a scale the phasor diagram of this model at this operating case. 7- Estimate approximately the loadability of this transmission line at this operating voltage. Justify your estimation and suggest a way to increase this loadability. Verify your answer.

A 3-ph, 50 Hz, 150 km length O.H.T.L. supplies a load with P 44 MW load at 0.85 lag P.f. and 69 kV This T.L has a resistance of 0.232 Ω/km and an inductive reactance of 0.783 Ω/km and the capacitance to neutral is 0.0446 μF/km. Using nominal π circuit, Find: 1- Constants A, B, C, and D. 2- Sending end voltage. 3- Sending end current 4- Voltage regulation of this T.L. 5- Transmission line efficiency. 6- Draw with a scale the phasor diagram of this model at this operating case. 7- Estimate approximately the loadability of this transmission line at this operating voltage. Justify your estimation and suggest a way to increase this loadability. Verify your answer.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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A 3-ph, 50 Hz, 150 km length O.H.T.L. supplies a load with P 44 MW load at 0.85 lag P.f. and 69 kV

This T.L has a resistance of 0.232 Ω/km and an inductive reactance of 0.783 Ω/km and the
capacitance to neutral is 0.0446 μF/km. Using nominal π circuit, Find:
1- Constants A, B, C, and D. 2- Sending end voltage. 3- Sending end current
4- Voltage regulation of this T.L. 5- Transmission line efficiency.
6- Draw with a scale the phasor diagram of this model at this operating case.
7- Estimate approximately the loadability of this transmission line at this operating voltage. Justify
your estimation and suggest a way to increase this loadability. Verify your answer.

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