Siemens launches drive to cut harmonics

drives
Specifically designed for building-services installation and to deliver excellent harmonic performance is this range of drives from Siemens Building Technologies.
The issue of the generation of power-system harmonics in building-services installations is addressed by the SED2 variable-speed drives and the free HarmonEE software from Siemens Building Technologies. SED2 drives have been carefully optimised for fan and pump application — rather than for general-purpose use in industry. This approach has enabled Siemens to incorporate innovative low-harmonic-technology circuitry to achieve excellent harmonic performance without the need for bulky filters and chokes. These drives are available with ratings from 37 W to 90 kW in IP20/21 versions and 1.1 to 90 kW in IP54 versions. All models incorporate PID controllers and a range of pre-programmed HVAC functions. The HarmonEE software enables users to assess the harmonic performance of an installation incorporating multiple SED2 drives.



modbs tv logo

New Sustainability Director for Wates Group

Wates Group, a family-owned development, building and property maintenance company, has appointed Cressida Curtis as its new Group Sustainability Director.

Domus Ventilation appoints new contractor sales managers

Ventilation systems manufacturer Domus Ventilation has announced the arrival of three new Contractor Sales Managers.