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Overhead Line Voltage Regulation

Approximate voltage drop and regulation for a single overhead (or underground) circuit, from your own conductor's R and X per km.

AAJappsEngineering Calculation Report

Overhead Line Voltage Regulation

Standard short-line approximate voltage-drop formula

Generated

For preliminary engineering use only — always verify results against project-specific standards and a qualified engineer's review before use in a real design.

Circuit

kV
A
Ω/km
Ω/km
km

Voltage regulation

Voltage drop454.1 V
Regulation4.13%
Receiving-end voltage10.546 kV