This document introduces the international standards for high efficiency induction motors and the energy efficiency requirements of the European Union. It also highlights the energy-saving advantages of high efficiency motors. The document mentions the testing standard IEC 60034-30 for proving the motor efficiency class and the requirement to state the motor efficiency class and nominal efficiency on the motor nameplate and in product documentation.
Electric motors account for about 70% of the electricity consumed by industry. The potential cost saving of high efficiency systems is estimated 20% to 30% and one of the major factors in such cost-effective improvement is the use of energy efficient motors. The IEC 60034-30 is part of an effort to unify motor testing standards, efficiency requirements and product labelling requirements to easily recognize worldwide high- efficiency products.
