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A three-phase transposed line is composed of one ACSR 159,000 cmil, 54/19 Lapwing conductor per phase with flat horizontal spacing of 8 meters as shown in Figure FE-1. The GMR of each conductor is 1.515 cm. a. Determine the inductance per phase per kilometer of the line. This line is to be replaced by a two-conductor bundle with 8-m spacing mea- sured from the center of the bundles as shown in Figure FE-2. The spacing between the conductors in the bundle is 40 cm. If the line inductance per phase is to be 77 percent of the inductance in part (a), what would be the GMR of each new conductor in the bundle? b. 0,0 D12 = 8 m D23 = 8 m 40 -D12 = 8 m- -D23 = 8 m- - D13 = 16 m- -D13 = 16 m - %3D Figure FE-1 Figure FE-2

A three-phase transposed line is composed of one ACSR 159,000 cmil, 54/19 Lapwing conductor per phase with flat horizontal spacing of 8 meters as shown in Figure FE-1. The GMR of each conductor is 1.515 cm. a. Determine the inductance per phase per kilometer of the line. This line is to be replaced by a two-conductor bundle with 8-m spacing mea- sured from the center of the bundles as shown in Figure FE-2. The spacing between the conductors in the bundle is 40 cm. If the line inductance per phase is to be 77 percent of the inductance in part (a), what would be the GMR of each new conductor in the bundle? b. 0,0 D12 = 8 m D23 = 8 m 40 -D12 = 8 m- -D23 = 8 m- - D13 = 16 m- -D13 = 16 m - %3D Figure FE-1 Figure FE-2

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 three-phase transposed line is composed of one ACSR 159,000 cmil, 54/19 Lapwing conductor per phase with flat horizontal spacing of 8 meters as shown in Figure FE-1. The GMR of each conductor is 1.515 cm. a. Determine the inductance per phase per kilometer of the line. b. This line is to be replaced by a two-conductor bundle with 8-m spacing mea- sured from the center of the bundles as shown in Figure FE-2. The spacing between the conductors in the bundle is 40 cm. If the line inductance per phase is to be 77 percent of the inductance in part (a), what would be the GMR of each new conductor in the bundle? a b 0,0 D12 = 8 m D23 = 8 m - 40 -D12 = 8 m- -D23 = 8 m- - D13 = 16 m- D13 = 16 m- %3D Figure FE-1 Figure FE-2
Transcribed Image Text:A three-phase transposed line is composed of one ACSR 159,000 cmil, 54/19 Lapwing conductor per phase with flat horizontal spacing of 8 meters as shown in Figure FE-1. The GMR of each conductor is 1.515 cm. a. Determine the inductance per phase per kilometer of the line. b. This line is to be replaced by a two-conductor bundle with 8-m spacing mea- sured from the center of the bundles as shown in Figure FE-2. The spacing between the conductors in the bundle is 40 cm. If the line inductance per phase is to be 77 percent of the inductance in part (a), what would be the GMR of each new conductor in the bundle? a b 0,0 D12 = 8 m D23 = 8 m - 40 -D12 = 8 m- -D23 = 8 m- - D13 = 16 m- D13 = 16 m- %3D Figure FE-1 Figure FE-2
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