GB/T 30143-2025YZR series wound-rotor three-phase induction motors for crane and metallurgical applications - Technical specification (frame sizes 450 to 500) (English PDF)
YZR系列起重及冶金用绕线转子三相异步电动机 技术规范（机座号450～500）
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 31, 2025
Implementation date
May 1, 2026
Scope
GB/T 30143-2025 is the English-translated version of YZR系列起重及冶金用绕线转子三相异步电动机 技术规范（机座号450～500）.
GB/T 30143-2025 is the Chinese standard "YZR series wound-rotor three-phase induction motors for crane and metallurgical applications - Technical specification (frame sizes 450 to 500)".
Its scope clause reads: This document specifies the types and basic features of the YZR series wound-rotor three-phase asynchronous motors (frame size 450~500) for hoisting and metallurgical applications.
The parameters, dimensions, general requirements, and technical requirements describe the corresponding test methods and specify the inspection rules, marking, packaging, and shelf life.
This document applies to wound-rotor three-phase asynchronous motors (frame size 450~500) used in various lifting machinery and metallurgical auxiliary equipment. The manufacture of.
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Document preview — GB/T 30143-2025
National Standard of the People's Republic of China
- ICS
- 29.160.30
- Classification
- K 26
- Replacing
- GB/T 30143-2013
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1.Scope
- 2 Normative References
- 3.Terms and Definitions
- 4.Types, Basic Parameters, and Dimensions
- 5 General Requirements
- 6.Technical Requirements 7.
- 7.Test Methods 9.
- 8 Inspection Rules
- 9.Marking, Packaging and Shelf Life
- Appendix A (Normative) Thermal Test Methods for Electric Motors
1 Scope
This document specifies the types and basic features of the YZR series wound-rotor three-phase asynchronous motors (frame size 450~500) for hoisting and metallurgical applications.
The parameters, dimensions, general requirements, and technical requirements describe the corresponding test methods and specify the inspection rules, marking, packaging, and shelf life.
This document applies to wound-rotor three-phase asynchronous motors (frame size 450~500) used in various lifting machinery and metallurgical auxiliary equipment.
The manufacture of.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 191 Pictorial Symbols for Packaging and Storage
GB/T 755 Ratings and Performance of Rotating Electrical Machines
GB/T 756 Cylindrical Shaft Extensions of Rotary Electrical Machines
GB/T 757 Conical Shaft Extensions of Rotary Electrical Machines
GB/T 997 Classification of structural types, mounting types and junction box locations of rotating electrical machines (IM codes)
GB/T 1032 Test Methods for Three-Phase Asynchronous Motors
GB/T 1096 General-purpose flat keys
GB/T 1958 Product Geometric Specification (GPS) - Geometric Tolerance Inspection and Verification
GB/T 1971 Markings on wire ends and direction of rotation for rotating electrical machines
GB/T 1993 Cooling methods for rotating electrical machines
GB/T 4772.2 Dimensions and power ratings of rotating electrical machines - Part 2.Frame sizes 355-1000 and flange sizes 1180-
GB/T 4831 Method for Compiling Product Model Numbers of Rotating Electrical Machines
GB/T 4942 Protection ratings (IP codes) for integral structures of rotating electrical machines
GB/T 10068 Mechanical Vibration of Motors with Shaft Center Height of 56mm and Above. Measurement, Evaluation and Limits
GB/T 10069.1 Noise Measurement Methods and Limits for Rotating Electrical Machines Part 1.Noise Measurement Methods for Rotating Electrical Machines
GB/T 10069.3 Noise Measurement Methods and Limits for Rotating Electrical Machines - Part 3.Noise Limits
GB/T 12351 Environmental Technical Requirements for Tropical Rotating Electrical Machines
GB/T 12665 Requirements for damp heat test of electric motors used under general environmental conditions
GB 20237 Safety requirements for lifting, metallurgical and shielded motors
GB/T 21975 Reliability Test Methods for Three-Phase Asynchronous Motors for Lifting and Metallurgical Use
GB/T 22714 Test Specification for Inter-turn Insulation of Molded Windings of AC Low-voltage Motors
GB/T 39631 | GB/T 39553 | GB/T 12665 | GB/T 30145 | GB/T 30144 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 755Rotating electrical machines - Rating and performance
- GB/T 756Cylindrical shaft extension for rotating electrical machines
- GB/T 757Conical shaft extension for rotating electrical machines
- GB/T 997Classification of types of construction, mounting arrangements and terminal box position (IM Code) for rotating electrical machines
- GB/T 1032Test methods for three-phase asynchronous motors
Editions of GB/T 30143
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 30143-2025 | YZR series wound-rotor three-phase induction motors for crane and metallurgical applications - Technical specification (frame size 450~500) | current edition | Current |
| GB/T 30143-2013 | Specification for YZR series of wound-rotor three-phase induction motors for crane and metallurgical applications (Frame size 450 to 500) | previous edition | In force |
This page sells the current edition, GB/T 30143-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 10068-2020 — Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity
GB/T 10069.1-2006 — Measurement of airborne noise emitted by rotating electrical machines and the noise limits -- Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines
GB/T 10069.3-2024 — Measurement of airborne noise emitted by rotating electrical machines and the noise limits - Part 3: Noise limits
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