Cableizer ®

Inductance (mean)

Symbol
$L_{m}$
Unit
H/m
Formulas
$\frac{\mu_{0}}{2\pi} \ln\left(\frac{GMD}{GMR_{c}}\right)$without earth return
$\frac{\mu_{0}}{2\pi} \ln\left(\frac{D_{E}}{GMR_{c}}\right)$1 cable with earth return
Related
$D_{E}$
Equivalent depth of earth return path [m]
$GMD$
Geometric mean distance between phases of the same system [m]
$GMR_{c}$
Geometric mean radius conductor [m]
$\mu_{0}$
Vacuum permeability [H/m]
$\pi$
Archimedes' constant $\pi$
Used in
$V_{drop}$
Voltage drop [V/(A.m)]
$Z_{ch}$
Surge impedance [$\Omega$]