Current Harmonics – which solution to choose from IREM?
Current Harmonics – are electrical disturbances caused by nonlinear loads, drives, and electronic equipment. They distort the waveform, leading to overheating of cables, malfunction of sensitive equipment and loss of energy efficiency.
To ensure optimal power quality, IREM offers a full range of passive and active filters.
Passive Harmonic Filters
Passive filters of the PHF series

- High attenuation of disturbances: Reduce harmonic distortions of the current within clearly defined limits.
- Overload Protection: Reduces thermal and electrical overload caused by harmonic currents.
Linear chokes series LIF

- Harmonic Reduction: Filter the current fed into the network by a soft starter or frequency drive.
- Surge protection: Protects the starter or drive from short-term surges, especially at low source resistance.
Passive filters for motor protection
VTF Series dV/dt Filters

Increase the service life of motor windings, protect against voltage surges and improve the operation of three-phase asynchronous motors with an inverter.
SWF Series Sine Wave Filters

Installation between the emergency power supply and the motor weakens pulse width of a square wave, converting it into a nearly perfect sine wave at the terminals.
Active harmonic filters
Active filters AHF series from IREM
Advanced solutions for dynamic and selective compensation of harmonic currents.
- Eliminates harmonics by generating a counter wave that fully compensates for distortion.
- They provide optimal harmonic suppression regardless of the number of connected loads and their profile.

Services of LLC “Total-Energo”
The company conducts professional measurements of the quality of the electrical network using certification equipment and provides technically sound commercial offers for the selection of harmonic filters from the Italian company IREM.
Contact for consultation