A single-phase overhead transmission line delivers 4000 kW at 11 kV at 0·8 p.f. lagging. If resistance and reactance per conductor are 0·15 Ω and 0·02 Ω respectively, calculate
: (i) percentage regulation
(ii) sending end power factor
(iii) line losses
Is = Ir = 454.56(L-36.86)
i)- percentage regulation =
=
= 1.09%
ii)
= 0.80log
iii) line losses =
=
losses = 61982W
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