Bundled Conductors GMR Calculator

Calculate the effective Geometric Mean Radius (GMR) for bundled conductors.
For a single conductor, $G M R = 0.7788 r$ . For an $N$ -conductor bundle (with $N > 1$ ) arranged in a line with equal spacing $d$ , $G M R = (0.7788 r d^{(N - 1)})^{\frac{1}{N}}$

* Enter the conductor radius (m) and, for bundles, the spacing (m) and bundle size.

Step 1: Enter Parameters

Bundle Configuration (Number of Conductors):

Conductor Radius,

r

(m):

Example: 0.01 m

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Step 1: Enter Parameters

Calculated Effective GMR