Symmetrical Three Phase Transmission Line Inductance Calculator
Calculate the total inductance using: $$ L’ = 2\times10^{-7}\ln\!\left(\frac{D}{r}\right) \quad \text{(H/m)} $$ and $$ L_{\text{total}} = L’ \times L_{\text{line}} $$
* Enter the conductor spacing \( D \) (mm), conductor GMR \( r \) (mm), and line length (km). Values are converted to SI units.
Step 1: Enter Parameters
e.g., 300 mm
e.g., 10 mm
e.g., 50 km