Positive sequence reactance

Definition according to 'Fundamentals of calculation of earth potential rise in the underground power distribution cable network' (Parsoatam1997)

Symbol
$X_{1}$
Unit
$\Omega$/m
Formulas
$\omega \frac{\mu_{0}}{2\pi} \ln\left(\frac{GMD}{GMR_{c}}\right)$general case
$1.15\omega \frac{\mu_{0}}{2\pi} \ln\left(\frac{S_{sp}}{GMR_{sp}}\right)$pipe-type cables
Used in
$\kappa_{k}$
$Z_{1}$