GB/T 21973-2008
AbolishedTechnical specification for YZR3 range of wound-rotor three-phase induction motors for crane & metallurgical applications
YZR3系列起重及冶金用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 the YZR3 series of wound-rotor three-phase induction motors. It is applied in the design, manufacturing, and quality verification of motors specifically used for crane hoisting, trolley travel, and metallurgical equipment drives. The standard ensures these motors meet the demanding conditions of high starting torque, frequent reversing, and harsh environments found in steel mills, foundries, and heavy industrial workshops.
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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.