a, standard international motor efficiency is more than 10 countries and regions around the world have presented the motor efficiency standards, international motor efficiency standards continue to improve, motor international standards concerning trend is obvious. International electrotechnical commission IEC unified global motor efficiency standards for IE1 and IE2, IE3, IE4 four grades, will be IE1 as the standard, IE2 efficiency for high efficiency, IE3 for high efficiency, and release the standard values. In 2014, the IEC organization released the IEC 60034 -30 -1, the motor power expanded to include zero. 12 kw -1000 kw electric motor, and officially released the IE4 standard values of energy efficiency. The motor ecological design new EC directive No. 640/2009 on July 22, 2009, the European Union for IE3 motors compulsory standards set a specific timetable. This instruction implementation is divided into three steps plan, schedule is as follows: 2, electrical energy efficiency standard GB18613 - in our country2012 to target the requirement of the limited value of energy efficiency in China is one of the world's motor manufacturing power, high efficiency motor is the future development direction of electric airport, if you want to make our motor products to the world, must make motor products achieve GuoJiChang technical requirements on energy efficiency level. Motor industry in our country at present the reference standards of energy efficiency was released in 2012 the national standard of the small and medium sized three-phase asynchronous motor limited value of energy efficiency and energy efficiency grade (Hereinafter referred to as GB18613 -2012). According to the GB18613 -Target 2012 recommendations, motor efficiency limit as recommended suggestion, requirements in the efficiency of the rated output power should not be lower than grade 2 (IE3）Energy efficiency standards, encourage enterprises to research and development and production of IE3 motors, the energy efficiency level has reached the world level in our country, the concrete implementation are as follows: for 7 rated power range. 5 ~ 375 kw electric motor, the aim of energy efficiency limit value is carried out in 4 years (GB18613 standardAlso since September 2017)Start formal implementation; For the rated power of 7. Below 5 kw motor, the aim of energy efficiency limit value in GB18613 -After five years (2012 standard implementationAlso since September 2018)Began to implement. Three, compared with IEC standard of energy efficiency in China, our country's motor efficiency standards and international standards, compare our country's motor with IEC standard can be found: 1)Motor hierarchies of energy efficiency in China is different from international standard GB 18613 the energy efficiency level is divided into level 1, level 2 and level 3, level 1 as the highest efficiency. International standards of energy efficiency into IE4, IE3, IE2, IE1 four grades, IE1 level minimum, IE4 as the highest level. 2)Standards of energy efficiency in China limited scope of motor is different from international standard motor efficiency standards in our country according to different types of motor set respectively, GB18613 -Energy efficiency standards for limited to only 2012 voltage 1000 v and below, 50 hz three-phase ac power supply, power rating in 0. 75 -Within the scope of 375 kw, the number of levels of 2, 4 and 6, single speed closed since the fan cooled, N design, the general use of continuously motor or general use explosion-proof motor. Other power of motor have special energy efficiency standards. IEC international standards will power range from 0. 12 kw -Are limited to 1000 kw motor IEC60034 -30 -1 in the standard. 3)Part 1 standard values of energy efficiency in China is higher than the IEC IE4 levels of energy efficiency in China's motor efficiency standards for grade 1 energy efficiency determination of efficiency value is according to the efficiency indexes of copper motor rotor, rotor motor depends on the development of copper rotor technology innovation. China's energy efficiency of grade 1 standard part of energy efficiency power value is higher than that stipulated in the IEC IE4 standard values, for the most widely used 4 pole motor efficiency for such as shown below: 4)Our country level 2 and level 3 energy efficiency standard IEC energy efficiency level of GB - 186132012 for test equipment, testing method is put forward higher requirements, improve the motor efficiency indicators in China, the motor efficiency value reached the European level in China. GB 18613 -Level 2 and level 3 of the 2012 efficiency value of the indicators meet the IE3 IEC standard and the efficiency value of the IE2.
