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A three-phase 60-Hz transmission line is energized with 420 kV at the sending end. This line...

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Advance Math

A three-phase 60-Hz transmission line is energized with 420 kVat the sending end. This line is lossless and 400 km long with ? =0.001265 rad/km and ?? = 260 Ω. a) Suppose a three-phaseshort-circuit occurs at the receiving end. Determine the receivingend current and the sending end current. b) Determine the reactanceand MVar of a shunt reactor to be installed at the load bus tolimit the no-load receiving-end voltage to 440 kV. c) When the linedelivers 800 MVA at 0.8 lagging power factor, a shunt capacitorbank is installed at the receiving end to improve the lineperformance. Determine the total Mvar and the capacitance of theΔ-connected capacitor bank to keep the receiving-end voltage at 400kV when the sending-end voltage is 420 kV.

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4.3 Ratings (601 Votes)
SolutionAccording to given data Length of transmission line is 400km and    See Answer
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