Three conductors of a 3-phase overhead line are arranged in a horizontal plane in the order a-b-c, distanc between a and b is 6 m, b and c is spaced 6 m apart. The diameter of each line conductor is 2.5 cm. Calcul the Capacitance per phase per km (L1) for this arrangement. Calculate Capacitance per phase per km(L2) i spacing between the conductors are reduced by half. Calculate the Ratio of C2 with respect to C1. Capacitance in nF per Phase per Km for Arrangement 1 (C1)

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter4: Transmission Line Parameters
Section: Chapter Questions
Problem 4.43P: Three ACSR Drake conductors are used for a three-phase overhead transmission line operating at 60...
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Three conductors of a 3-phase overhead line are arranged in a horizontal plane in the order a-b-c, distance
between a and b is 6 m, b and c is spaced 6 m apart. The diameter of each line conductor is 2.5 cm. Calculate
the Capacitance per phase per km (L1) for this arrangement. Calculate Capacitance per phase per km(L2) if the
spacing between the conductors are reduced by half. Calculate the Ratio of C2 with respect to C1.
Capacitance in nF per Phase per Km for Arrangement 1 (C1)
Capacitance in nF per phase per km for Arrangement 2 (C2)
Ratio of C2 to C1
A 3-phase, 50 Hz, 60 km long overhead line supplies 1400 kW at 11 kV, 0.7 p.f. lagging. The line resistance is
0.025 Q per phase per km and line inductance is 0.8 mH per phase per km. Calculate the sending end voltage
voltage regulation and efficiency of transmission.
Sending End Voltage
Transcribed Image Text:moodle.nct.edu.om/mod rning Portal Courses - Reports - e-Services - Academic Departments ETC - CIMS - Three conductors of a 3-phase overhead line are arranged in a horizontal plane in the order a-b-c, distance between a and b is 6 m, b and c is spaced 6 m apart. The diameter of each line conductor is 2.5 cm. Calculate the Capacitance per phase per km (L1) for this arrangement. Calculate Capacitance per phase per km(L2) if the spacing between the conductors are reduced by half. Calculate the Ratio of C2 with respect to C1. Capacitance in nF per Phase per Km for Arrangement 1 (C1) Capacitance in nF per phase per km for Arrangement 2 (C2) Ratio of C2 to C1 A 3-phase, 50 Hz, 60 km long overhead line supplies 1400 kW at 11 kV, 0.7 p.f. lagging. The line resistance is 0.025 Q per phase per km and line inductance is 0.8 mH per phase per km. Calculate the sending end voltage voltage regulation and efficiency of transmission. Sending End Voltage
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