Neutral Current Calculator

Neutral Current Calculator calculator can be used to calculate the neutral current in a three-phase electrical system based on line currents.

Input Parameters

Calculation Results

Calculation Formula

Neutral Current (In) = Ia + Ib + Ic

Where:
Ia = Line Current A
Ib = Line Current B
Ic = Line Current C

Neutral Current Calculator Calculator Usage Guide

Learn how to use the Neutral Current Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the line currents (Ia, Ib, and Ic) in amperes (A) in the respective input fields.
  2. Click the "Calculate" button to compute the neutral current.
  3. The neutral current will be displayed in the result field.

Working Principle

The neutral current in a three-phase electrical system is the sum of the line currents. This is based on Kirchhoff's Current Law (KCL), which states that the algebraic sum of currents meeting at a node is zero. In a balanced three-phase system, the line currents are equal in magnitude and 120 degrees out of phase with each other, resulting in a neutral current of zero. However, in unbalanced systems, the neutral current will be non-zero.