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EC Motors Meet China Standard Level I Energy Efficiency and IEC Standard IE4 Energy Efficiency

2020-01-01 22:27:18 Volcano Motor Read

Key Points for Selection of Permanent Magnet for Fan EC Motors Part 8 -EC Motors Meet National(China) Standard Level I Energy Efficiency and IEC Standard IE4 Energy Efficiency


The original intention of users of induction motor to replace permanent magnet synchronous motor/DC brushless motor is usually to value the higher system efficiency of permanent magnet synchronous motor compared with induction motor. The national standards(China) also have relevant implementation standards for the energy efficiency of permanent magnet synchronous motors. The permanent magnet synchronous motors shall be optimized in structure and function according to the application characteristics of fans to form permanent magnet synchronous motors /EC motors of fans. The National Standards for Energy Efficiency of Permanent Magnet Synchronous Motors shall be followed.

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The National Standard for Energy Efficiency of Permanent Magnet Synchronous Motors stipulates that the first-class energy-efficient permanent magnet synchronous motors with a speed of 0.75KW shall have an efficiency of not less than 82.3% below 500rpm. The efficiency shall not be lower than 87.4% when the rotating speed is lower than 1000rpm. The efficiency shall not be lower than 85.6% when the rotating speed is lower than 1500rpm. Therefore, when selecting permanent magnet synchronous motor/fan EC motor for fans, fan manufacturers should pay attention to whether the supplier's products can meet the requirements of National Standard for Energy Efficiency of Permanent Magnet Synchronous Motors.


What is the efficiency of the permanent magnet synchronous motor/fan EC motor of volcanic motor? Take a 0.75KW EC motor for example:

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This is a 220/0.75KW/460rpm EC motor. The National Standard for Energy Efficiency of Permanent Magnet Synchronous Motors stipulates that a 0.75KW class I energy efficient permanent magnet synchronous motor shall have an efficiency of not less than 82.3% at a speed lower than 500rpm. The product efficiency of Volcano Electric is 87.18%, which is far higher than the first-class energy efficiency of the national standard(China).

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