GB/T 21974-2008
AbolishedTechnical specification for YZRW range of eddy-current braking wound-rotor three-phase induction motors for crane and metallurgical application
YZRW系列起重及冶金用涡流制动绕线转子三相异步电动机技术条件
Application Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, and marking for YZRW series motors, which integrate an eddy-current braking mechanism with a wound-rotor induction motor. It is applied specifically in crane hoisting mechanisms and metallurgical equipment where precise speed control, smooth braking, and high starting torque are required under heavy-duty or high-temperature industrial conditions.
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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.