175 km, 138 KV, 50 Hz transmission line has the following distributed parameters:r = 0.24 Ω/km, x = 1.12 Ω/km, y = j7.68 x 10 ‾⁶ S/km. Losses are neglected. (a) Compute the nominal π equivalent circuit parameters and draw the circuit.(b) Derive the corresponding ABCD parameters.(c) The line delivers 40 MW at 132 kV with a power factor of 0.95 lagging (Δ connected). Using the ABCD parameters, compute the sending end voltage, current and δ angle. (d) Draw the approximate voltage profile of this line for the following power delivered:(i) 0 MW, 15 MW, 45 MW, and surge impedance loading. Indicate the methods available to maintain the voltages within the range of 0.97 and 1.03. Q3. 175 km, 138 kV, 50 Hz transmission line has the following distributed parameters:r = 0.24 Q/km, x = 1.12 Q/km, y = j7.68 x 10-6 S/km. Losses are neglected.(a) Compute the nominal T equivalent circuit parameters and draw the circuit.(b) Derive the corresponding ABCD parameters.(c) The line delivers 40 MW at 132 kv with a power factor of 0.95 lagging (A connected).Using the ABCD parameters, compute the sending end voltage, current and õ angle.(d) Draw the approximate voltage profile of this line for the following power delivered:(i) O MW, 15 MW, 45 MW, and surge impedance loading. Indicate the methods available tomaintain the voltages within the range of 0.97 and 1.03.

Note: As per the guidelines will be solving only the first 3 subparts.

Answered: 175 km, 138 KV, 50 Hz transmission line…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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175 km, 138 KV, 50 Hz transmission line has the following distributed parameters:

r = 0.24 Ω/km, x = 1.12 Ω/km, y = j7.68 x 10 ‾⁶ S/km. Losses are neglected. (a) Compute the nominal π equivalent circuit parameters and draw the circuit.

(b) Derive the corresponding ABCD parameters.

(c) The line delivers 40 MW at 132 kV with a power factor of 0.95 lagging (Δ connected). Using the ABCD parameters, compute the sending end voltage, current and δ angle. (d) Draw the approximate voltage profile of this line for the following power delivered:

(i) 0 MW, 15 MW, 45 MW, and surge impedance loading. Indicate the methods available to maintain the voltages within the range of 0.97 and 1.03.

Transcribed Image Text:Q3. 175 km, 138 kV, 50 Hz transmission line has the following distributed parameters: r = 0.24 Q/km, x = 1.12 Q/km, y = j7.68 x 10-6 S/km. Losses are neglected. (a) Compute the nominal T equivalent circuit parameters and draw the circuit. (b) Derive the corresponding ABCD parameters. (c) The line delivers 40 MW at 132 kv with a power factor of 0.95 lagging (A connected). Using the ABCD parameters, compute the sending end voltage, current and õ angle. (d) Draw the approximate voltage profile of this line for the following power delivered: (i) O MW, 15 MW, 45 MW, and surge impedance loading. Indicate the methods available to maintain the voltages within the range of 0.97 and 1.03.

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