Variable speed drive
With just half a day’s use, a variable speed drive can compensate for the environmental cost of its own manufacture and disposal, a new study from ABB shows. The study was carried out in cooperation with Tampere University of Technology.
The ecological payback was calculated for three ABB drives of 0.75 kW, 7.5 kW and 250 kW, respectively. The payback times were short in all instances. The 0.75 kW drive compensated for its global warming potential in 6 days; for the 7.5 kW drive it was 1.1 days and for the 250 kW drive it was 0.5 day.
By operating the drive for just half a day it is possible to avoid enough emissions to fully compensate for the carbon impact of manufacturing and disposal. The carbon footprint of the organisation then starts to shrink as the drive will continue to benefit the environment by saving emissions throughout its lifetime.
For more information contact;
ABB Ltd, Warrington, Cheshire
Tel: 01925 741 111
Fax: 01925 741 212
E-mail: energy@gb.abb.com
Web: www.abb.co.uk/energy
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