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A 50 km, 50 Hz three-phase transmission line has a resistance of 0.01 Q/km and an inductance of 63.6 µH/km per phase. The receiving end is supplying a wye-connected load of 500 kVA at a 0.8 lagging power factor. The receiving end terminal voltage is 11 kVL-L. If the receiving end voltage phase is used as reference, determine the followings: (a) The total line impedance per phase. (b) The load current and sending end voltage terminal values. (c) The voltage regulation percentage. (d) The efficiency of the transmission line.

A 50 km, 50 Hz three-phase transmission line has a resistance of 0.01 Q/km and an inductance of 63.6 µH/km per phase. The receiving end is supplying a wye-connected load of 500 kVA at a 0.8 lagging power factor. The receiving end terminal voltage is 11 kVL-L. If the receiving end voltage phase is used as reference, determine the followings: (a) The total line impedance per phase. (b) The load current and sending end voltage terminal values. (c) The voltage regulation percentage. (d) The efficiency of the transmission line.

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 50 km, 50 Hz three-phase transmission line has a resistance of 0.01 Q/km and an inductance of 63.6 µH/km per phase. The receiving end is supplying a wye-connected load of 500 kVA at a 0.8 lagging power factor. The receiving end terminal voltage is 11 kVL-L. If the receiving end voltage phase is used as reference, determine the followings: (a) The total line impedance per phase. (b) The load current and sending end voltage terminal values. (c) The voltage regulation percentage. (d) The efficiency of the transmission line.
Transcribed Image Text:A 50 km, 50 Hz three-phase transmission line has a resistance of 0.01 Q/km and an inductance of 63.6 µH/km per phase. The receiving end is supplying a wye-connected load of 500 kVA at a 0.8 lagging power factor. The receiving end terminal voltage is 11 kVL-L. If the receiving end voltage phase is used as reference, determine the followings: (a) The total line impedance per phase. (b) The load current and sending end voltage terminal values. (c) The voltage regulation percentage. (d) The efficiency of the transmission line.
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