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  1. A 100 km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 MVA, the resistance of the line is
    1. 8.06 ohms per phase
    2. 0.806 ohms per phase
    3. 0.0806 ohms per phase
    4. 80.6 ohms per phase
Correct Option: A

PL = I²LR
Here,

L =
150 × 106
=
150
× 10³
110 × 10³110

∴ 15 × 106 =
150
² × 106 × R
110

or R = 8.06 ohms/phase



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