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Question 2) A 100 km Three-Phase 50 Hz transposed transmission line is composed of bundle of three ACSR, 1,431,000 cmil, 47/7 Bobolink conductors as shown in Figure 2 (a). The Three-Phases (bundled Conductors) have flat horizontal spacing of 11 meters as shown in the Figure 2(a). The conductors have a diameter of 3.8 cm and a GMR of 1.5 cm. The Line is going to be replaced with a six conductor bundle of ACSR, 477,000 cmil, 26/7 Hawk conductors. The conductors have a diameter of 2.5 cm and a GMR of 0.9 cm. The new line will have a horisontal phase spacing of 14 meters as it is going to be operated at higher Voltage rating. The new line is shown in Figure 2 (b). The spacing between the bundles in Figure 2 (a) and (b) is 45 cm. Determine, a) The capacitance for each case and the percentage change in capacitance b) The inductive reactance for each line and the percentage change. c) The inductance for each case and the percentage change in inductance 11 m (a) 11 m OLD TRANSMISSION LİNE 0.45 m 0,45 m 0.45 m 0.45 m 0.45 m 0.45 m 14 m 14 m (b) NEW TRANSMISSION LINE Figure 2

Question 2) A 100 km Three-Phase 50 Hz transposed transmission line is composed of bundle of three ACSR, 1,431,000 cmil, 47/7 Bobolink conductors as shown in Figure 2 (a). The Three-Phases (bundled Conductors) have flat horizontal spacing of 11 meters as shown in the Figure 2(a). The conductors have a diameter of 3.8 cm and a GMR of 1.5 cm. The Line is going to be replaced with a six conductor bundle of ACSR, 477,000 cmil, 26/7 Hawk conductors. The conductors have a diameter of 2.5 cm and a GMR of 0.9 cm. The new line will have a horisontal phase spacing of 14 meters as it is going to be operated at higher Voltage rating. The new line is shown in Figure 2 (b). The spacing between the bundles in Figure 2 (a) and (b) is 45 cm. Determine, a) The capacitance for each case and the percentage change in capacitance b) The inductive reactance for each line and the percentage change. c) The inductance for each case and the percentage change in inductance 11 m (a) 11 m OLD TRANSMISSION LİNE 0.45 m 0,45 m 0.45 m 0.45 m 0.45 m 0.45 m 14 m 14 m (b) NEW TRANSMISSION LINE Figure 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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Question 2) A 100 km Three-Phase 50 Hz transposed transmission line is composed of bundle of three ACSR, 1,431,000 cmil, 47/7 Bobolink conductors as shown in Figure 2 (a). The Three-Phases (bundled Conductors) have flat horizontal spacing of 11 meters as shown in the Figure 2(a). The conductors have a diameter of 3.8 cm and a GMR of 1.5 cm. The Line is going to be replaced with a six conductor bundle of ACSR, 477,000 cmil, 26/7 Hawk conductors. The conductors have a diameter of 2.5 cm and a GMR of 0.9 cm. The new line will have a horisontal phase spacing of 14 meters as it is going to be operated at higher Voltage rating. The new line is shown in Figure 2 (b). The spacing between the bundles in Figure 2 (a) and (b) is 45 cm. Determine, a) The capacitance for each case and the percentage change in capacitance b) The inductive reactance for each line and the percentage change. c) The inductance for each case and the percentage change in inductance 11 m (a) 11 m OLD TRANSMISSION LİNE 0.45 m 0.45 m 0.45 m 0.45 m 0.45 m 0.45 m 14 m 14 m (b) NEW TRANSMISSION LINE Figure 2 2/3 Question 3) A 350-km 450-kV, 60-Hz three-phase uncompensated line has a series reactance x=0.34 Q/km and shunt admittance y=j 6.5 x 10 6 S/km (positive-sequence). Calculate, (a) Characteristic impedance Zc (b) (yl) (c) The exact ABCD parameters of the line. (d) The wavelength A in km. (e) The SIL in MW. :::
Transcribed Image Text:Question 2) A 100 km Three-Phase 50 Hz transposed transmission line is composed of bundle of three ACSR, 1,431,000 cmil, 47/7 Bobolink conductors as shown in Figure 2 (a). The Three-Phases (bundled Conductors) have flat horizontal spacing of 11 meters as shown in the Figure 2(a). The conductors have a diameter of 3.8 cm and a GMR of 1.5 cm. The Line is going to be replaced with a six conductor bundle of ACSR, 477,000 cmil, 26/7 Hawk conductors. The conductors have a diameter of 2.5 cm and a GMR of 0.9 cm. The new line will have a horisontal phase spacing of 14 meters as it is going to be operated at higher Voltage rating. The new line is shown in Figure 2 (b). The spacing between the bundles in Figure 2 (a) and (b) is 45 cm. Determine, a) The capacitance for each case and the percentage change in capacitance b) The inductive reactance for each line and the percentage change. c) The inductance for each case and the percentage change in inductance 11 m (a) 11 m OLD TRANSMISSION LİNE 0.45 m 0.45 m 0.45 m 0.45 m 0.45 m 0.45 m 14 m 14 m (b) NEW TRANSMISSION LINE Figure 2 2/3 Question 3) A 350-km 450-kV, 60-Hz three-phase uncompensated line has a series reactance x=0.34 Q/km and shunt admittance y=j 6.5 x 10 6 S/km (positive-sequence). Calculate, (a) Characteristic impedance Zc (b) (yl) (c) The exact ABCD parameters of the line. (d) The wavelength A in km. (e) The SIL in MW. :::
07:24 A O @ Final 20-21 Spring.pdf EUROPEAN UNIVERSITY of LEFKE Faculty of Engineering Department of Electrical and Electronics Engineering EE436 Power System Analysis I Final HW 2020-21 Spring Question 1) A transmission line is composed of ACSR conductors consiting of eight aluminum strands and two steel strand as seen in Figure 1. Each aluminum strand and steel strand has a diameter of 2 cm. Assuming a 3 phase line with horizontal phase spacing 8 meters between the phases which is composed of this conductor each phase is carried by given single ACSR conductor. Calculate the Inductance of each phase. Assuming a single phase circuit what would be the Loop inductance Note: Neglect the effect of steel strand!!!!!!!!. Steel Strands Figure 1 Question 2) A 100 km Three-Phase 50 Hz transposed transmission line is composed of bundle of three ACSR, 1,431,000 cmil, 47/7 Bobolink conductors as shown Figure 2 (a). The Three-Phases (bundled Conductors) have flat horizontal spacing of 11 meters as shown in the Figure 2(a). The conductors have a diameter of 3.8 cm and a GMR of 1.5 cm. The Line is going to be replaced with a six conductor bundle of ACSR, 477,000 cmil, 26/7 Hawk conductors. The conductors have a diameter of 2.5 cm and a GMR of 0.9 cm. The new line will have a horisontal phase spacing of 14 meters as it is going to be operated at er Voltage rating. The new line is shown in Figure 2 (b). The spacing between the bundles in Figure 2 (a) and (b) is 45 cm. Determine, ...
Transcribed Image Text:07:24 A O @ Final 20-21 Spring.pdf EUROPEAN UNIVERSITY of LEFKE Faculty of Engineering Department of Electrical and Electronics Engineering EE436 Power System Analysis I Final HW 2020-21 Spring Question 1) A transmission line is composed of ACSR conductors consiting of eight aluminum strands and two steel strand as seen in Figure 1. Each aluminum strand and steel strand has a diameter of 2 cm. Assuming a 3 phase line with horizontal phase spacing 8 meters between the phases which is composed of this conductor each phase is carried by given single ACSR conductor. Calculate the Inductance of each phase. Assuming a single phase circuit what would be the Loop inductance Note: Neglect the effect of steel strand!!!!!!!!. Steel Strands Figure 1 Question 2) A 100 km Three-Phase 50 Hz transposed transmission line is composed of bundle of three ACSR, 1,431,000 cmil, 47/7 Bobolink conductors as shown Figure 2 (a). The Three-Phases (bundled Conductors) have flat horizontal spacing of 11 meters as shown in the Figure 2(a). The conductors have a diameter of 3.8 cm and a GMR of 1.5 cm. The Line is going to be replaced with a six conductor bundle of ACSR, 477,000 cmil, 26/7 Hawk conductors. The conductors have a diameter of 2.5 cm and a GMR of 0.9 cm. The new line will have a horisontal phase spacing of 14 meters as it is going to be operated at er Voltage rating. The new line is shown in Figure 2 (b). The spacing between the bundles in Figure 2 (a) and (b) is 45 cm. Determine, ...
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