GB/T 25302-2025 English PDFUS$539.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25302-2025: Specification for high efficiency three-phase induction motor for textile purpose (frame size 90～225) Status: Valid GB/T 25302: Historical versions
Basic dataStandard ID: GB/T 25302-2025 (GB/T25302-2025)Description (Translated English): Specification for high efficiency three-phase induction motor for textile purpose (frame size 90��225) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K22 Classification of International Standard: 29.160.30 Word Count Estimation: 26,290 Date of Issue: 2025-05-30 Date of Implementation: 2025-12-01 Older Standard (superseded by this standard): GB/T 25302-2010 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 25302-2025: Specification for high efficiency three-phase induction motor for textile purpose (frame size 90～225)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 29.160.30 CCSK22 National Standard of the People's Republic of China Replace GB/T 25302-2010 Technical specification for high efficiency three-phase asynchronous motors for textile applications (Frame size 90~225) (framesize90~225) Released on 2025-05-30 2025-12-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of contentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Basic parameters and dimensions 1 5 General Requirements 9 6 Technical Requirements 9 7 Test methods 16 8 Inspection Rules 17 9 Marking, packaging and warranty period 18 Figure 1 Motor with base and foot and no flange on end cover 4 Figure 2 Motor with base and flange (with through hole) on end cover 5 Figure 3 Motor with base without feet and flange (with through hole) on end cover 6 Figure 4 Vertical installation, base without feet, flange (with through hole) on end cover, motor with shaft extending downward 7 Table 1 Correspondence between frame size, rated speed and rated power 2 Table 2 Motors with base and foot and no flange on end cover (IMB3) 4 Table 3 Motors with base with feet and flange (with through holes) on end cover (IMB35) 5 Table 4 Motors with base without feet and flange (with through hole) on end cover (IMB5) 6 Table 5 Vertical installation, base without feet, flange on end cover (with through hole), motor with shaft extending downward (IMV1) 7 Table 6 Shaft key dimensions and tolerances 8 Table 7 Radial runout tolerance 8 Table 8 Radial runout and end face runout tolerances 8 Table 9 Flatness tolerance 8 Table 10 Keyway Symmetry Tolerance 9 Table 11 Guaranteed values of efficiency and power factor 10 Table 12 Guaranteed value of ratio of stall torque to rated torque 11 Table 13 Guaranteed value of the ratio of maximum torque to rated torque 12 Table 14 Guaranteed value of ratio of locked-rotor current to rated current 13 Table 15 Tolerance of guaranteed electrical performance values 14 Table 16 Interval time after power failure 14 Table 17 Vibration intensity limits (effective values) expressed in displacement and velocity for different axis center heights H (mm) 15 Table 18 Maximum no-load A-weighted sound power level LWA 15 Table 19 Maximum allowable increase in noise of A-weighted sound power level under load ΔLWA 16 Table 20 Inspection Item 17 Table 21 6 outlet terminal markings 18 Table 22 9 terminal markings 18ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 25302-2010 "Technical Specifications for High Efficiency Three-phase Asynchronous Motors for Textile Industry (Frame Size 90~225)" and Compared with GB/T 25302-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The motor efficiency in this document is changed to IE4, and the external dimensions refer to the YE4 motor product (see Table 2 to Table 5,.2010 edition Table 2 to Table 5); b) Deleted the provision that "the motor shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved through the prescribed procedures" (See 4.1 of the.2010 edition); c) Change the rated power of 2.6kW, 6.3kW, 8.6kW, etc. to 2.8kW, 6.5kW, 9kW (see 4.1.6,.2010 edition) 3.6); d) Change the N dimension 350mm limit deviation ±0.016, 400mm limit deviation ±0.018 to 0-0.036 (see Table 3, Table 4, Table 5, Table 3, Table 4, Table 5 of the.2010 edition); e) When measuring the efficiency of the motor, the provision of "shaft seal ring should be removed" has been added (see 7.12); f) The motor efficiency index has been revised. Most specifications of the.2010 version of the standard only reach IE2 efficiency, and some specifications reach IE3 Efficiency, it is modified to IE4 energy efficiency level, that is, to achieve the level 2 energy efficiency specified in GB 18613-2020 (see 6.2, Table 11, 4.4, Table 11 of the.2010 edition); g) Added the guaranteed value of the stall torque multiple, maximum torque multiple, minimum torque multiple and stall current multiple, which is "at rated frequency". "Prerequisites" (see 6.3~6.6, 5.5~5.8 of the.2010 edition); h) The deviation value of any phase of the motor's three-phase no-load current from the average value of the three phases has been changed from 10% to ±10% (see 6.21, 4.22 of the.2010 edition); i) Added the provisions for 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 (see 6.21); j) Added test methods (see Chapter 7); k) The words “Handle with care” in appropriate places on the packaging box are changed to “Upward” (see 9.2.2, 6.7 of the.2010 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the 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 for Standardization of Rotating Electrical Machines (SAC/TC26). This document was drafted by. Shanghai Motor System Energy Saving Engineering Technology Research Center Co., Ltd., Taizhou Luba Electromechanical Technology Co., Ltd., National Motor Product Quality Inspection and Testing Center (Anhui), Qingdao Tianyi Group Hongqi Motor Co., Ltd., Shanghai Dianke Motor Technology Co., Ltd. Co., Ltd., Shanghai Representative Office of the American International Copper Professional Association, Qingdao Tianyi Hongqi Textile Machinery Group Co., Ltd., and Shanghai Chuanye Electric Motor Co., Ltd. The main drafters of this document are. Yao Binglei, Zhou Hongfa, Chen Kui, Qian Juan, Wang Jinping, Wang Wenliang, Wang Honghu and Zhang Xu. The previous versions of this document and the documents it replaces are as follows. ---First published in.2010 as GB/T 25302-2010; ---This is the first revision. Technical specification for high efficiency three-phase asynchronous motors for textile applications (Frame size 90~225)1 ScopeThis document specifies the basic parameters, dimensions, general requirements and technical requirements of high-efficiency three-phase asynchronous motors for textile applications. The corresponding test methods are specified, and the inspection rules, marking, packaging and warranty period are stipulated. This document is applicable to high-efficiency three-phase asynchronous motors for textile industry (frame size 90~225). The motor has an effective anti-fiber clogging capability and a high overload capacity, and is particularly suitable for use in short fiber environments. It can work under the condition of low temperature and humidity. Other motors derived from this series of motors shall be implemented as a reference.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 191 Pictorial markings for packaging, storage and transportation GB/T 755 Ratings and performance of rotating electrical machines GB/T 997 Classification of structural types, installation types and terminal box positions of rotating electrical machines (IM code) GB/T 1032-2023 Test methods for three-phase asynchronous motors GB/T 1971 Terminal marking and direction of rotation of rotating electrical machines GB/T 1993 Cooling methods for rotating electrical machines GB/T 4772.1 Dimensions and output power classes of rotating electrical machines Part 1.Frame sizes 56 to 400 and flange sizes 55 to 1080 GB/T 4942 Protection degree of rotating electrical machine integral structure (IP code) Classification GB/T 10068 Mechanical vibration of motors with shaft center height of 56 mm and above - Measurement, evaluation and limits of vibration GB/T 10069.1 Measurement methods and limits for noise from rotating electrical machines Part 1.Measurement methods for noise from rotating electrical machines GB/T 12665 Requirements for damp heat tests on motors used under normal environmental conditions GB/T 14711 General safety requirements for small and medium-sized rotating electrical machines GB/T 22719.1 Interturn insulation of loose-fitting windings of AC low-voltage motors Part 1.Test methods GB/T 22719.2 Interturn insulation of loose-fit windings of AC low-voltage motors Part 2.Test limits3 Terms and definitionsThere are no terms or definitions that require definition in this document.4 Basic parameters and dimensions4.1 Basic parameters 4.1.1 The enclosure protection grade of high-efficiency three-phase asynchronous motors for textile applications (hereinafter referred to as motors) shall comply with the provisions of GB/T 4942. 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