The Harmonics Estimator for Variable Frequency Drive systems estimates harmonic contribution when using variable frequency drives in 6, 12, 18 and 24 pulse configurations with input line reactors, DC-Link reactors and filters (Active, Passive).

The Harmonics Estimator software consists of a user friendly interface that allows the user to estimate harmonic contribution of a new or existing system in a quick and easy way.

The results can be viewed in graphical format and text format and the software has built-in functions to generate a harmonic estimation report especially designed for consultants.

Allows users to estimate harmonic contribution of a single variable system or a project containing multiple systems of equal or different size. The software generates multi-page project report including a summary page based on the estimated harmonic contribution of the total project.

Custom software development available for Windows, OS X, iOS and Android Platforms.

Example: VFD System

Specify VFD Input Type and Motor Data.

Example: Project Management

Project Management and Overview of VFD Systems

Example: Harmonics Estimation Overview

Harmonics Estimation of Total Project including Pre-Existing System

Example: Harmonics Estimation Report

Preview, Print, Export or E-mail Harmonics Estimation Report.


  • Create individual Project

    Open and Save Projects

    Add, View and Modify Project Information

    5 Easy Steps to complete Estimation

    Single VFD or Multiple VFDs under one Project

    Project Total Harmonics Distortion Estimation

    Indvidual VFD Harmonics Distortion Estimation

    Specify Pre-Existing Systems

  • Linear or VFD Load Type Systems

    Edit, View, Modify Systems

    Name Indvidual Systems

    Specify 6, 12, 18 or 24 Pulse VFD Configuration

    Specify Input Line Reactors

    Specify DC-Link Reactors

    Specify Filters (Passive / Active)

    Systems up to 5000 HP / kW

  • Select Utility Frequency (50Hz / 60Hz)

    Specify Secondary Voltage

    Specify Utility Transformer (KVA, Impedance, ISC)

    Estimate Transformer Load

  • Specify Secondary Voltage

    Specify User Transformer (KVA, Impedance, ISC)

    Estimate Transformer Load

  • Preview Estimation Report

    Print Estimation Report

    Customize Estimation Report (Logo, Company)

    Export Estimation Report (PDF, WORD, Excel, etc..)

    E-mail Estimation Report (PDF)

  • PCC1 Harmonic Current / Voltage Graph

    PCC2 Harmonic Current / Voltage Graph

    Graphs selectable on Energy Estimation Report

  • Metric / English Units Selection

  • Integrated Help File

    Integrated Product Documentation

NOTE: We do not offer standard harmonic estimation software products. All our harmonic estimation software is custom designed based on customer specification, contact us for more information.