International Electrical Manufacturing Association launches high-efficiency low-voltage distribution transformer program

The International Electrical Manufacturers Association ( NEMA ) announced the launch of the NEMA High Efficiency Transformer Program, which aims to help utilities, commercial buildings, and factories use high-efficiency transformers in their operations.

NEMA's original standard publication for different types of distribution transformers was “ NEMATP1-2002 Guidelines for Determining Energy Efficiency of Distribution Transformers” and was later modified by the US Department of Energy as “National Energy Efficiency Code for Low-Voltage Dry Distribution Transformers”. The new NEMA transformer energy efficiency assurance plan requires 30% less loss than the current U.S. Department of Energy's " 10CFR431 low-voltage dry-type distribution transformer."

NEMA Industry Director John Caskey stated that "new types of transformers that meet NEMA's advanced standards can eliminate the need for new thermal power plants over the next five years. The actual efficiency of these new advanced transformers can range from 98% to 99% depending on the size of the transformer."

Transformers covered by this new plan are mainly used in commercial and industrial applications. However, some power utilities are considering the NEMA program as their commercial and industrial energy efficiency rebate program. Adopting this plan can not only reduce energy consumption, but also significantly reduce carbon dioxide emissions.

To date, seven major manufacturers have committed to providing NEMA high-efficiency transformers to the market. They include Eaton Electric, Federal Pacific , General Electric, Hammond Power Solutions , ONYX Power , Schneider Electric and Siemens, all of which are NEMA members.

NEMA President and Chief Executive Officer Evan R. Gaddis stated that "the NEMA Efficient Mark has long been associated with high-efficiency motors. Today's announcement extends the scope of this marking to distribution transformers and demonstrates NEMA 's leading position in energy efficiency."