Ultra high efficiency distribution transformers

This paper presents how Amorphous Metal Core Distribution Transformers (AMDT) will play a vital role in improving energy efficiency in global power distribution and also highlights the environmental impact of using AMDT in the electrical distribution system. AMDT provides a sustainable approach when capitalized losses and environmental impacts are considered. ABB´s AMDT have the potential to reduce transformer no-load losses by up to 70% compared to conventional technology. This paper discusses the general aspects of AMDT transformer losses, in both liquid-filled and dry-type, and the effect on total owning cost. Several case studies of the economical and environmental benefits are presented. Applications where using AMDT is most beneficial, such as in renewable energy generation, are also presented. The effect of loading factor and the benefit of using AMDT is discussed.