Apparent power at injecting point

To feed a purely resistive load in a radial network with a given current through an underground line, it is necessary to inject a higher current at the source to compensate for cable capacitance. The difference being the capacitive current generated in the line, in quadrature with the current in load.

Symbol
$S_G$
Unit
kVA
Formulae
$\sqrt{3} U_o I_c$three-phase system
$U_o I_c$two-phase system
$U_o I_c$single-phase system
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