Q3/B: A three-phase 50 Hz transmission line has resistance, inductance, and capacitance per phase of 10-ohm, 0.1 H, and 0.9 Miro-farad respectively and delivers a load of 35 MW at 132 KV and 0.8 laggingpower factor. Determine 1) ABCD constants, 2) voltage regulation, and 3) transmission efficiency.Use nominal T method.

Answered: Image /qna-images/answer/fc71d6d4-91cc-40e4-bbf3-def387202fc9.jpg

Answered: Q3/B: A three-phase 50 Hz transmission…

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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What do you understand by means of power system? A 3-p, 50 Hz transmission [ line is 120 km long. It has a per phase series impedance of 0.05+j0.45 2 per km and a per phase shunt admittance of j3.4*10-6 S per km. It delivers 200 MW load at 220 kV with 80% power factor lagging. Find the voltage regulation and transmission efficiency.
Q1: A 3-phase of sequence ABC transmission line has a conductors of cross section area (82 mm?) and a diameter of (1 cm) as shown in figure below. Delivers a load of 15 MW at 30 kV and power factor of 0.78. Determine the efficiency and voltage regulation of the line. If the line length (65km). The line is completely transposed. For the copper p = 1/58 per meter length. 3 m 4 m 6 m 4 3 m
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Q2(a) Figure Q2(a) shows the spacing of a double circuit 3-phase overhead line. The phase sequence is UVW and the line is completely transposed. i) Critically assess the advantages of double circuit line over single circuit line Calculate the inductance per phase for 500 meter length of line using Table 2(a) data for the Figure Q2(a). Table 2(a) GMR of the line 0.01m Distance a-b' 6.m Distance c-c' 8.3m a b Figure Q2(a)
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Problem 1 a- Explain the meaning of the term "bundle conductor transmission line" and discuss the effects of its use on the electrical performance of a high voltage electric transmission line. b- Consider an experimental 1800 kV three phase bundle-conductor line with parameters A= 0.95 and B=j 70. Determine the value of the parameter C of the line. Assume that the line is delivering 2,000 MVA at receiving end whose voltage of 1750 kV and unity power factor. Determine the sending end voltage of the line. d- C- Determine the sending end current of the line.

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