Inductance of Symmetrical Three Phase Transmission Line Calculator

Calculate the total inductance of a three-phase transmission line (equilateral triangle configuration).

Using the formulas:
\[ L’ = \frac{\mu_0}{2\pi}\ln\left(\frac{D}{r}\right) \]
\[ L_{\text{total}} = L’ \times L \] with \(\mu_0 = 4\pi \times 10^{-7}\, \text{H/m}\).

Step 1: Enter Transmission Line Parameters

Conductor Spacing, \( D \) (m):

Enter the center-to-center distance between conductors (e.g., 1 m)

Conductor Radius, \( r \) (m):

Enter the radius of each conductor (e.g., 0.01 m)

Line Length, \( L \) (m):

Total length of the transmission line (e.g., 100 m)

Relative Permittivity, \( \epsilon_r \):

For air, use 1; for other media, enter the appropriate value.

Step 1: Enter Transmission Line Parameters

Calculated Total Inductance