International standards and testing methods for motor efficiency

　　I. IEC60034-30 "single speed, cage type three-phase induction motor energy efficiency classification (IE code)"

　　In October 2008, the International Electrotechnical Commission officially released the IEC60034-30, dividing the efficiency of all countries into IE1, IE2 and IE3. The scope of application of the standard is as follows:

　　The rated voltage UN is not higher than 1000V;

　　The rated power of PN is from 0.75kW to 375kW.

　　Pole number 2 pole, 4 pole, 6 pole

　　50Hz, 60Hz

　　The test method of IE2 and IE3 efficiency is tested by low uncertainty method.

　　Nanyang explosion-proof motor can supply bulk explosion-proof motors with IE2 and IE3 efficiency, and IE4 efficiency explosion-proof motors can be supplied in bulk in the near future.

　　Two, NEMA Premium efficiency index in the United States

　　U. S. law stipulates that the motor (1HP-200HP) entering the United States in December 19, 2010 must conform to the NEMA Premium efficiency standard, which is the same as IE3 60Hz in IEC60034-30.

　　At the same time, the 200HP to 500HP motor must meet the EPACT efficiency standard, which is the same as the IE2 60Hz index in IEC60034-30.

　　Nanyang Huada is currently able to supply the Nanyang NEMA explosion-proof motor, which meets the NEMA Premium efficiency standard. It has the American UL and Canadian CSA certification, and supplies the North American market in mass.

　　Three. In 2009, the EC issued 2005/32/EC directive on the requirements of motor ecological design.

　　The energy efficiency of motors should not be lower than IE2 energy efficiency level from June 16, 2011 onwards.

　　The energy efficiency of 7.5kW-375kW Motors should not be lower than IE3 energy efficiency level from January 1, 2015 onwards.

　　The energy efficiency of 0.75kW-375kW Motors should not be lower than IE3 energy efficiency level from January 1, 2017.

　　Four, the revised version of the GB18613-2010 China small and medium sized three phase asynchronous motor energy efficiency limit and energy efficiency rating will be effective by the end of the year.

　　From January 1, 2011 onwards, the energy efficiency of 0.75kW-375kW Motors should not be lower than the 3 level of energy efficiency, which is equivalent to the level of IE2 50Hz efficiency in IEC60034-30.

　　From January 1, 2016 onwards, the energy efficiency of 0.75kW-375kW Motors should not be lower than the 2 level of energy efficiency, which is equivalent to the level of IE3 50Hz efficiency in IEC60034-30.

　　Nanyang Huada is currently facing the domestic market and users, batch supply to meet the national standard three level energy efficiency YB3 motor, YBXn Nanyang explosion-proof motor; national standard two level energy efficiency YBX3, YX3E Nanyang explosion-proof motor. Among them, Nanyang explosion-proof motor with GB two level energy efficiency above belongs to energy-saving products. The finished Nanyang explosion-proof motor, in addition to providing QS production license, the production license plate, will also provide three level energy efficiency or two level energy efficiency signs, energy saving product identification and so on. The perfect signs and signs help Nanyang explosion proof motors become the best in the domestic motor market.

　　Comparison of motor efficiency levels in the US, Europe and China