At the end of the 8 km overhead line given in the figure below, there are two distribution transformers, one of which is 800kVA and the other is 1200kVA, operated with power coefficients of 0.6 and 0.8, respectively. The end-of-line voltage is 6kV. Find the required rated cross section and line head voltage so that the power loss on the line is less than %pk = 10.

EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
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Chapter28: Overcurrent Protection–fuses And Circuit Breakers
Section: Chapter Questions
Problem 11R: State four possible combinations of service equipment that meet the requirements of 110.9 and 110.10...
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At the end of the 8 km overhead line given in the figure below, there are two distribution transformers, one of which is 800kVA and the other is 1200kVA, operated with power coefficients of 0.6 and 0.8, respectively. The end-of-line voltage is 6kV. Find the required rated cross section and line head voltage so that the power loss on the line is less than %pk = 10.

1=8km
A
keu = 56m2mm2
x = 0,42/km
Si = 800 kVA
cosoi = 0,6
S: =1200KVA
cosp2 = 0,8
U=6kV
Norm iletken kesitleri (mm?)
2,5
35
185
4
50
240
70
300
10
95
400
16
120
500
25
150
630
Transcribed Image Text:1=8km A keu = 56m2mm2 x = 0,42/km Si = 800 kVA cosoi = 0,6 S: =1200KVA cosp2 = 0,8 U=6kV Norm iletken kesitleri (mm?) 2,5 35 185 4 50 240 70 300 10 95 400 16 120 500 25 150 630
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