This application is your tool to estimate the total harmonic current in your electrical system and to calculate your need for active harmonic filtering to reach the desired compensation level. The application prints the summary of the results on the web page and sends a more specific report to your e-mail.

Harmonic Calculator

Please refer to Harmonic Calculator User Guide for help with Harmonic Calculator

Personal information

Please provide your name, company and a valid e-mail address to deliver the report to.

Name: Company:

Country:

Valid e-mail address: Phone number including country code (optional): Project (optional):

System and supplying transformer information

Please provide basic information of the electrical system and the supplying transformer. Please do not use thousand separators.

Downstream line-to-line voltage (V):

Please contact sales@meruspower.fi for solutions at higher voltage levels.

Frequency (Hz):

Upstream short circuit power / Fault level (MVA): Transformer rated power (kVA): Short circuit impedance (6.5 % by default) (%):

4W or 3W connection:

Systems where neutral wire exists can be selected as 4W. 4W connection is needed only when neutral wire currents (harmonics 3rd, 9th, 15th …) need to be compensated (3W by default).

4W 3W

Compensation

Please select the desired compensation level:

Compensation of all harmonics Meeting IEEE-519 1992 requirements Meeting IEEE-519 2014 requirements Meeting IEEE-519 2022 requirements

Meeting EN 50160 requirements Meeting ER G5/4 planning requirements Custom

Loads

Do you want to compensate reactive power with active filters?

Yes No

Do you have power quality measurements?

Yes No

Enter the amount of loads:

Typical VFD / VSD (ABB, Schneider, Danfoss,…) (kW): Linear load / DOL motors (kW): Computer load (kW): Fluorescent lighting load (kW): LED lighting load (kW):

Do you want to calculate required compensation automatically or select active harmonic filters manually

Compute required solution automatically (recommended) I want to select active harmonic filters manually

I want to get a detailed PDF report to my e-mail.

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