The difference between YE3 motor, YE2 motor and YX3 motor-Xinda Motor- electric motors and EV accessories supplier|INDEX--

The difference between YE3 motor, YE2 motor and YX3 motor

Date：2024-05-28　　　Author：XINDA MOTOR

YE3 motor is a super high efficiency motor (high efficiency energy saving motor), which adopts new motor design, new technology and new materials to improve the output efficiency of the motor by reducing the loss of electromagnetic energy, thermal energy and mechanical energy. YE2 high efficiency motor (ie YX3 ordinary high efficiency motor).

YX3 high-efficiency motor is the first high-efficiency motor in China that uses cold-rolled silicon steel as magnetic material. It is designed and developed based on Y3 motor. Y3 motor is the first ordinary motor in China that uses cold-rolled silicon steel as magnetic material. It is a national "cold instead of hot" product. YX3 motor was designed in 2003 and passed the appraisal organized by the Machinery Federation in September 2005.

It mainly complies with the Level 2 energy efficiency standard of GB/T18613-2002 version, that is, the energy saving evaluation value. It also meets the index requirements of EFF1 in Europe. The energy saving evaluation value of the later GB/T18613-2006 version can also be achieved. In its detection method, the stray loss of the motor is calculated using 0.5% of the input power, and the design is also based on this to calculate the electromagnetic data. Before 2008, domestic motor manufacturers used YX3 motors for Level 2 energy efficiency filing and energy-saving product certification, except for joint venture brands. Therefore, as a high-efficiency motor, YX3 motors are widely known in China.

In 2008, IEC and NEMA of the United States negotiated to unify the indicators and testing methods of high-efficiency motors and formulated new energy efficiency indicators and testing methods. The biggest difference is that the indicator value of high-efficiency motors, namely the IE2 value, has been reduced, but the motor testing method adopts the low uncertainty detection method, and the biggest difference is that the stray loss of the motor adopts the actual measurement method. This is different from the design of YX3. Facing the adjustment of indicators, there is no motor corresponding to the IE3 indicator in China.

Therefore, in 2009, Shanghai Electric Science Research Institute organized dozens of motor factories in the motor industry to jointly design motors that meet the IE2 and IE3 indicators. On the basis of YX3 high-efficiency motors, IE2 motors have adjusted some designs to meet the requirements of IE2 indicators and testing methods, and are named YE2 series high-efficiency motors. This series of designs passed the appraisal organized by the Machinery Industry Federation in 2011. There was no reference sample for motors that meet the IE3 indicators in China, only the NEMA ultra-high efficiency series, which was made by a few manufacturers. Therefore, on this basis, domestic motors that meet the IE3 requirements were developed and named YE3 series ultra-high efficiency motors.

The later revised version of GB/T18613-2012 uses the IE2 index as the basic energy efficiency limit value, i.e., the level 3 energy efficiency index, and the IE3 index as the energy saving evaluation value, i.e., the level 2 energy efficiency index. That means that the YX3 series motors can reach the new level 3 energy efficiency index with a slight adjustment, and the YE2 is a high-efficiency motor designed according to the IE2 requirements. In the new standard, although the YX3 index is slightly higher than that of the YE2 motor, the detection method is different, and the performance is similar to that of the YE2 motor in many specifications, and both belong to the new high-efficiency level 3 energy efficiency. These two series of motors are ordinary high-efficiency motors in the new national standard.

As the Y, Y2, and Y3 series motors are basically eliminated in China, the YE3 ultra-high-efficiency energy-saving motor saves energy and reduces long-term operating costs. It is very suitable for use in textiles, fans, pumps, and compressors. The cost of purchasing the motor can be recovered in one year by saving electricity. It can be directly started or adjusted with a frequency converter to completely replace asynchronous motors. The rare earth permanent magnet high-efficiency energy-saving motor itself can save more than 15% of electricity compared to ordinary motors. The motor power factor is close to 1, which improves the quality factor of the power grid and does not require a power factor compensator. The motor current is small, which saves transmission and distribution capacity and extends the overall operating life of the system.

The difference between YE3 motor, YE2 motor and YX3 motor

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