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GB/T 30145-2025: YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications - Technical specification (frame size 450~500)
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 30145-2025	English	439	Add to Cart	4 days [Need to translate]	YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications - Technical specification (frame size 450~500)
GB/T 30145-2013	English	299	Add to Cart	3 days [Need to translate]	Specification for YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications (Frame size 450 to 500)

GB/T 30145-2025: YZP series variable-frequency adjustable-speed three-phase induction motors for crane and metallurgical applications - Technical specification (frame size 450~500)

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ICS 29.160.30 CCSK26 National Standards of the People's Republic of China Replaces GB/T 30145-2013 YZP series three-phase asynchronous motors for hoisting and metallurgical applications with variable frequency speed control. Electric motor technical specifications (frame size 450~500) (framesize 450~500) Published on 2025-10-31 Implemented on May 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Types, Basic Parameters, and Dimensions 2 5 General Requirements 7 6.Technical Requirements 7. 7.Test Methods 9. 8.Inspection Rule 11 9.Marking, Packaging and Shelf Life 13 Figure 1.Horizontally mounted IM1001 and IM1003 motors with base feet and flangeless end covers (axial flow fan cooled). Figure 2.Horizontally mounted motors (centrifugal fan cooled) with base and flangeless end caps, IM1001 and IM1003 models. Figure 3 Load characteristic curve of the motor 11 Table 1.Correspondence between rated power, synchronous speed, rated torque, moment of inertia, and frequency range of electric motors and frame size. Table 2.Horizontally mounted motors (axial flow fan cooled) with base and flangeless end caps for IM1001 and IM1003 models. 4 Table 3.Horizontally Mounted Electric Motors (Centrifugal Fan Cooled) with Base and Flangeless End Covers (IM1001 and IM1003) 6 Table 4 Dimensions and Tolerances of Shaft Extension Keys 7 Table 5 Vibration Intensity Limits (RMS) for Electric Motors 8 Table 6 Temperature Rise Limits or Permissible Temperatures for Various Heat-Generating Components of the Electric Motor 9 Table 7 Test Items and Test Methods 12 Table 8 Outgoing Terminal Markings 13

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 30145-2013 "Technical Conditions for YZP Series Variable Frequency Speed Control Three-Phase Asynchronous Motors for Lifting and Metallurgical Use (Frame Size)". Compared with GB/T 30145-2013, the main technical changes in the standard (Nos. 450~500) are as follows, except for structural adjustments and editorial changes. ---The section on "electric drives" has been removed (see Chapter 1 of the.2013 edition); ---Added motor model and example descriptions (see 4.1); ---Added "Can also be made into a Y-connection according to user needs" (see 4.5); ---The constant torque frequency range has been changed from "1~50" Hz to "3~50" Hz (see Table 1,.2013 version of Table 1); ---The D1 dimension of the frame size 500 motor has been changed (see Tables 2 and 3,.2013 editions of Tables 2 and 3); ---The limit deviations for the key width of the motor shaft extension have been changed (see Table 4,.2013 edition of Table 4); ---Added the clause "The motor should be able to guarantee constant torque or constant power operation within the specified frequency range" (see 5.4); ---The outgoing wire direction of the motor and fan junction box has been changed (see 5.5, 4.18 of the.2013 version), and "protective grounding terminal except..." has been added. Besides serving as protective grounding, it should not be used for any other purpose (see 5.5); ---Added requirements for the appearance and assembly quality of the electric motor (see 6.1); ---Added the clause "The cold insulation resistance value should not be lower than 5MΩ" (see 6.2); ---Added. "The deviation of any phase of the DC resistance of the three-phase stator winding of the motor in the actual cold state from the average value of the three phases should not exceed..." "±1.5% (Δ connection) or ±2% (Y connection) of the average value" (see 6.3); ---The requirements for the inter-turn insulation withstand voltage test of electric motors have been changed (see 6.4, 4.13 of the.2013 edition); ---The requirements for motor vibration have been changed (see 6.8, 4.16 of the.2013 edition); ---Change "The protection rating of the motor housing and junction box is IP54, and the protection rating of the fan is IP23" to "The protection rating of the motor housing and junction box is IP23". The enclosure's protection rating is IP54 or IP55 according to GB/T 4942; the junction box's protection rating is IP55; and the fan casing's... The protection rating is IP20 (see 6.16, 3.1 of the.2013 edition); ---Chapter 5, Inspection Rules, is changed to Chapter 7, Test Methods, and Chapter 8, Inspection Rules, and presented in tabular form (see Chapter 7). Chapter 8 (Chapter 5 in the.2013 edition); ---Added a "Cooling Method" item and changed "Nominal Power" to "Rated Power" (see 9.2, 6.2 in the.2013 version). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Technical Committee on Standardization of Rotating Electrical Machines (SAC/TC26). This document was drafted by. Jiamusi Explosion-proof Motor Research Institute Co., Ltd., Jiamusi Electric Machinery Co., Ltd., and Shanxi Electric Machinery Manufacturing Co., Ltd. The company, Anhui Wannan Electric Machinery Co., Ltd., Jiangsu Special Equipment Safety Supervision and Inspection Institute, Jiangxi Jiangte Electric Machinery Co., Ltd., and Changjiang Shipping Group. The group's Wuhan Electric Machinery Co., Ltd., Guangdong Special Equipment Inspection and Research Institute Zhongshan Inspection Institute, Daqing Hengchi Electric Co., Ltd., and Zhejiang Longchuang Inspection... Test Technology Co., Ltd., Anda Explosion-proof Heavy Machinery Manufacturing Co., Ltd., Wuxi Xindali Motor Co., Ltd., Dalian Darma Motor Co., Ltd. The companies include. Dalian Hongli Electric Machinery Co., Ltd., Changzhou Institute of Technology, and Chengdu Chaodechuang Technology Co., Ltd. The main drafters of this document are. Wang Liming, Li Xingbo, Chen Pu, Zhao Guohong, Wang Xinren, Wang Weiping, Zhi Gang, Lin Ruxi, Wang Liping, and Zhang Guangqing. Chen Zhengfang, Li Xiulin, Xu Min, Zhao Mingchen, Lü Tingxiu, Hao Fengkuan, Xu Ziyi, Wang Yaping, Li Tong, Li Yilin. The release history of this document and the document it replaces is as follows. ---First published in.2013 as GB/T 30145-2013; ---This is the first revision. YZP series three-phase asynchronous motors for hoisting and metallurgical applications with variable frequency speed control. Electric motor technical specifications (frame size 450~500)

1 Scope

This document specifies the types and basic specifications of YZP series variable frequency speed-regulating 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 three-phase asynchronous motors (frame size 450~500) used in various lifting machinery and metallurgical auxiliary equipment powered by frequency converters. 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 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 rating (IP code) 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 22670 Test methods for three-phase squirrel-cage induction motors powered by frequency converters GB/T 22714 Test Specification for Inter-turn Insulation of Molded Windings of AC Low-voltage Motors GB/T 22719.1 Inter-turn insulation of randomly embedded windings of AC low-voltage motors – Part 1.Test methods GB/T 22719.2 Inter-turn insulation of randomly embedded windings of AC low-voltage motors - Part 2.Test limits

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined. ...