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Line is selected to be AAC #336.4 with ampacity of 513A Diameter of each conductor is d=0.666 in or 5.03 mm Distance between conductors D=42 in The length of the line is 1= 20 km Resistance per unit length is r 0.63 Ohms/1000 ft (there are 0.3048km in 1000ft) Load: P (kW) = 1600 Power factor= 0.75

Line is selected to be AAC #336.4 with ampacity of 513A Diameter of each conductor is d=0.666 in or 5.03 mm Distance between conductors D=42 in The length of the line is 1= 20 km Resistance per unit length is r 0.63 Ohms/1000 ft (there are 0.3048km in 1000ft) Load: P (kW) = 1600 Power factor= 0.75

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
of Line Load Capacitor A three-phase system is represented as shown above. Line: 42in 42 in Line is selected to be AAC #336.4 with ampacity of 513A Diameter of each conductor is d= 0.666 in or 5.03 mm Distance between conductors D= 42 in The length of the line is 1= 20 km Resistance per unit length is r= 0.63 Ohms/1000 ft (there are 0.3048km in 1000ft) Load: P (kW) = 1600 Power factor = 0.75 Voltage at the load V = 13.8 kV
Transcribed Image Text:of Line Load Capacitor A three-phase system is represented as shown above. Line: 42in 42 in Line is selected to be AAC #336.4 with ampacity of 513A Diameter of each conductor is d= 0.666 in or 5.03 mm Distance between conductors D= 42 in The length of the line is 1= 20 km Resistance per unit length is r= 0.63 Ohms/1000 ft (there are 0.3048km in 1000ft) Load: P (kW) = 1600 Power factor = 0.75 Voltage at the load V = 13.8 kV
Find: 1. Voltage at the source (no capacitors are installed) 2. Capacitors are installed at the load so that the power factor of the load is improved to 0.95. What would be the voltage at the source in this case? 3. How much money could be saved in loss reduction in the transmission line annually due to the installation of capacitors if the Load Factor (LdE) = 0.7, there are 8760 hours in a year, and energy cost is $0.007/KWHr? (See comments below). 4. Compare results and make conclusions 5. If the voltage drop is above the standard, investigate the effect of raising voltage to 34.5 kV. Note, that conductor spacing at 34.5 kV is 54 inches.
Transcribed Image Text:Find: 1. Voltage at the source (no capacitors are installed) 2. Capacitors are installed at the load so that the power factor of the load is improved to 0.95. What would be the voltage at the source in this case? 3. How much money could be saved in loss reduction in the transmission line annually due to the installation of capacitors if the Load Factor (LdE) = 0.7, there are 8760 hours in a year, and energy cost is $0.007/KWHr? (See comments below). 4. Compare results and make conclusions 5. If the voltage drop is above the standard, investigate the effect of raising voltage to 34.5 kV. Note, that conductor spacing at 34.5 kV is 54 inches.
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