GB/T 21707-2018
AbolishedInsulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors
变频调速专用三相异步电动机绝缘规范
Application Summary AI generated
This standard specifies the insulation requirements for three-phase induction motors specifically designed for variable frequency drive (VFD) applications. It is applied in the manufacturing and testing of motors used in industrial automation, pumps, fans, and compressors where adjustable speed control is required. The standard ensures that motor insulation can withstand the high-frequency voltage spikes and thermal stresses generated by VFDs, preventing premature failure.
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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.