GB/T 32891.2-2019
ActiveRotating electrical machines—Efficiency classes (IE-code)—Part 2: Variable speed AC motors
旋转电机 效率分级（IE代码） 第2部分：变速交流电动机
Application Summary AI generated
This standard defines efficiency classes (IE-codes) specifically for variable speed AC motors, establishing a classification system from IE1 to IE5 based on their energy performance under variable frequency drive operation. It is applied in industrial settings for the design, procurement, and regulatory compliance of motors used in pumps, fans, compressors, and conveyors where speed control is required. The standard enables manufacturers and end-users to compare motor efficiency, meet energy-saving regulations, and select appropriate motors for variable speed applications.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.