A transmission line has following parameters: A=D=0.98∠3∘andB=98∠78∘Ω.
If the maximum power transmitted from the transmission line is 100MW and receiving end voltage is 110kV, then value of sending end voltage will be approximately
A
112 kv
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B
125kV
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C
120kV
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D
117kV
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Solution
The correct option is D 117kV Formaximumpowertransferputtingδ=βinbelowequation PR=|VS||VR||B|cos(β−δ)−∣∣AB∣∣|VR|2cos(β−α) PRmax=|VS||VR||B|−|A||V2R||B|cos(β−α)..(1) GivenPRmax=100MW,VR=110kV