Passive filters for motor protection: how to protect motors with VFD inverters

The IREM USF-I system combines an Online Double Conversion UPS with an Isolation Transformer featuring high attenuation of common-mode and differential-mode disturbances, creating a system designed to ensure electrical immunity, operational continuity and safety.

The 2026 Italian Budget Law has reintroduced Hyper-Depreciation for investments in “Industry 4.0” capital goods, offering companies a new opportunity to improve the efficiency and competitiveness of their production facilities.

To effectively manage variable harmonic distortion, IREM has developed a modular parallel AHF (Active Harmonic Filter) solution designed for 690 V industrial applications.

IREM offers a complete range of equipment designed to mitigate the main electrical network anomalies without requiring substantial modifications to the existing infrastructure.

To meet these requirements, IREM has developed the AI Series Integrated Power Supplies, solutions designed to ensure protection, safety, and reliability in telecommunications installations. These units can be installed in standard 19” racks and integrate the main electrical power protection and distribution functions into a single system.

The ITT – IT series Isolation transformers represent a technology often considered “simple”, yet actually strategic for electrical power quality.