Analog Devices AN-687 ADE7761 Energy Meter Application Note

About this manual

This document details a meter design based on the ADE7761 for use in single-phase, 2-wire distribution systems. The design aims to meet Class 1 accuracy requirements according to IEC 61036 standards while incorporating electromagnetic compatibility considerations. The meter utilizes a highly accurate ADC system and an integrated oscillator within the ADE7761 chip.

What's inside

• Introduction
• Design Goals
• Functional Description
• Design Equations
• Design Calculations
• Burden Resistor Calculation

Frequently asked questions

What type of electrical distribution systems is this meter designed for?

The meter is designed for use in single-phase, 2-wire distribution systems.

What happens to the power calculation if a fault occurs where phase and neutral currents differ by more than 6.25%?

The power calculation is based on the larger of the two currents.

How does the meter operate when the neutral wire is disconnected?

The meter continues billing based on current input only with the voltage input missing.