Bundle Conductor GMR and GMD Calculator

EHV Transmission Line Modeling: Calculate bundled conductor equivalent $GMR$, geometric mean distance ($GMD$), inductance ($L$), and capacitance ($C$).

Bundle & Line Geometry

Bundle Configuration:

Subconductor Diameter $d$ (mm):

Bundle Spacing $s$ (cm):

Phase Spacing $D_{phase}$ (m):

Phase Configuration:

Inductance, Capacitance & Surge Impedance

Inductive $L$

-- mH/km

Capacitive $C$

-- nF/km

Surge Impedance ($Z_c$)

-- $\Omega$

SIL (at 400 kV)

-- MW

Geometric Mean Dimensions

• Geometric Mean Distance ($GMD$): -- m

• Inductive Bundle Radius ($GMR_L$): -- cm

• Capacitive Bundle Radius ($GMR_C$): -- cm

• Reactance at 50 Hz ($X_L$): -- $\Omega$/km

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Bundle Conductor GMR and GMD Calculator

Bundle & Line Geometry

Inductance, Capacitance & Surge Impedance

Geometric Mean Dimensions

Frequently Asked Questions