Cableizer ®

Equivalent mutual reactance between conductors

Definition according to CIGRE TB 531 chap. 4.2.3.8

Symbol
$X_{ap}$
Unit
$\Omega$/m
Formulas
$\omega \frac{\mu_{0}}{2\pi} \ln\left(\frac{D_{E}}{GMD}\right)$general case
$\frac{2X_{c}+X_{L}}{3}$flat formation
Related
$D_{E}$
Equivalent depth of earth return path [m]
$GMD$
Geometric mean distance between phases of the same system [m]
$\mu_{0}$
Vacuum permeability [H/m]
$\omega$
Angular frequency [rad/s]
$\pi$
Archimedes' constant $\pi$
$X_{c}$
Mutual reactance between middle and outer cables in flat formation with earth return [$\Omega$/m]
$X_{L}$
Mutual reactance between outer cables in flat formation [$\Omega$/m]
Used in
$Z_{x}$
Equivalent mutual impedance between cables with earth return [$\Omega$/m]