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
$S_{\mathrm{G}}$
Unit
kW
Formulae
$\sqrt{3} I_{\mathrm{c}} U_{\mathrm{o}}$three-phase system
$I_{\mathrm{c}} U_{\mathrm{o}}$two-phase system
$I_{\mathrm{c}} U_{\mathrm{o}}$single-phase system
Related
$I_{\mathrm{c}}$
$U_{\mathrm{o}}$
Used in
$P_{\mathrm{L}}$