A single phase transmission line is delivering 460 kVA load at 11 kV. Its resistance is 4.5 Q and inductive reactance is 6 Q. If the load power factor is 0.7 lagging. Determine the Current through the line Sending end voltage Sending end power factor Regulation of transmission line Efficiency of transmission line

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A single phase transmission line is
delivering 460 kVA load at 11 kV. Its
resistance is 4.5 Q and inductive reactance
is 6 Q. If the load power factor is
0.7 lagging.
Determine the
Current through the line
Sending end voltage
Sending end power factor
Regulation of transmission line
Efficiency of transmission line
Transcribed Image Text:A single phase transmission line is delivering 460 kVA load at 11 kV. Its resistance is 4.5 Q and inductive reactance is 6 Q. If the load power factor is 0.7 lagging. Determine the Current through the line Sending end voltage Sending end power factor Regulation of transmission line Efficiency of transmission line
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Electrical Engineering homework question answer, step 1, image 1

              Fig: Equivalent circuit diagram of given single-phase Tr-line

(a)

current flowing through the transmission line is given by 

Ir=SVr-cos-pfplugging valuesIr=460×10311×103-cos-0.7Ir=41.81-45.57° A

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