JB/T 15243-2026Specification for YPT series of high-voltage variable-speed three-phase asynchronous motor (frame size: 710 to 1120) (English PDF)

JB/T 15243-2026 is the English-translated version of YPT 系列高压变频调速三相异步电动机技术规范（机座号 710～1120）.

JB/T 15243-2026 is the technical specification for the YPT series of high-voltage variable-speed three-phase asynchronous motors in frame sizes 710 to 1120. These are induction motors designed to be driven by a frequency converter so that their speed can be adjusted, and the document sets out the technical requirements that apply to motors of this series and frame size range.

The specification is written for motor manufacturers who design and build the YPT series, for drive and system integrators who select these motors, and for buyers and test laboratories who need a common technical reference when ordering or checking them. It is a voluntary industry standard, as shown by the /T in its code. It was issued by the Ministry of Industry and Information Technology on 13 February 2026 and takes effect on 1 September 2026. It is a new standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 25 pages — is available in the English PDF.

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