Earth Loop Impedance Calculator

This calculator helps you determine the earth loop impedance of electrical circuits, which is crucial for ensuring safety and proper functioning of electrical systems.

Input Parameters

Calculation Results

Calculation Formula

ZELI = Zsource + Zearth + Zreturn

Where:
ZELI = Earth Loop Impedance
Zsource = Source Impedance
Zearth = Earth Resistance
Zreturn = Return Resistance

Result

Earth Loop Impedance Calculator Usage Guide

Learn how to use the Earth Loop Impedance Calculator and its working principles

How to Use the Calculator

  1. Enter the source voltage of your electrical system in volts (V).
  2. Enter the source impedance in ohms (Ω).
  3. Enter the earth resistance in ohms (Ω).
  4. Enter the return resistance in ohms (Ω).
  5. Click the "Calculate" button to compute the earth loop impedance.
  6. The result will be displayed in ohms (Ω).

Working Principle

The earth loop impedance (ZELI) is a critical parameter in electrical safety and system performance. It is calculated by summing the source impedance, earth resistance, and return resistance. A lower earth loop impedance is generally safer and ensures better protection against fault currents.

Applications

This calculator is useful for electricians, engineers, and technicians who need to ensure the safety and reliability of electrical installations. It helps in designing and verifying grounding systems to comply with safety standards and regulations.