A 3-phase, 11 kV, 50 Hz, 2 km long transmission line supplies a 10 MVA load at rated voltage. The line resistance is 0.6 0/km and an inductance is 5 mH/km. Using the approximation from part (a), calculate AV if the load power factor is: (1) 0.8 lagging, (i) unity, (iii) 0.8 leading. Compare the obtained results and draw appropriate conclusions. At what load power factor there would be no voltage drop along the line?

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A 3-phase, 11 kV, 50 Hz, 2 km long transmission line supplies a 10 MVA
load at rated voltage. The line resistance is 0.6 Q/km and an inductance is
5 mH/km. Using the approximation from part (a), calculate AV if the load
power factor is: (i) 0.8 lagging, (ii) unity, (iii) 0.8 leading. Compare the
obtained results and draw appropriate conclusions. At what load power
factor there would be no voltage drop along the line?
Transcribed Image Text:A 3-phase, 11 kV, 50 Hz, 2 km long transmission line supplies a 10 MVA load at rated voltage. The line resistance is 0.6 Q/km and an inductance is 5 mH/km. Using the approximation from part (a), calculate AV if the load power factor is: (i) 0.8 lagging, (ii) unity, (iii) 0.8 leading. Compare the obtained results and draw appropriate conclusions. At what load power factor there would be no voltage drop along the line?
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