Cableizer
Log in

Self reactance of conductor

Definition according to Cigré guide 531 chapter 4.2.3.4

Symbol
$X_a$
Unit
$\Omega$/m
Formulae
$\omega \frac{\mu_0}{2\pi} \ln\left(\frac{D_E}{GMR_c}\right)$
Related
$D_E$
Equivalent depth of earth return path [m]
$GMR_c$
Geometric mean radius of conductor [m]
$\mu_0$
Vacuum permeability [H/m]
$\omega$
Angular frequency [rad/s]
$\pi$
Archimedes' constant $\pi$
Used in
$B$
Susceptance [S/m]
$Z_a$
Self impedance of phase conductor with earth return [$\Omega$/m]
$Z_h$
Zero-sequence impedance [$\Omega$/m]