GB/T 22671-2024 English PDFUS$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 22671-2024: Test methods for external-rotor motors Status: Valid GB/T 22671: Historical versions
Basic dataStandard ID: GB/T 22671-2024 (GB/T22671-2024)Description (Translated English): Test methods for external-rotor motors Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K20 Classification of International Standard: 29.160.30 Word Count Estimation: 14,162 Date of Issue: 2024-09-29 Date of Implementation: 2025-04-01 Older Standard (superseded by this standard): GB/T 22671-2008 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 22671-2024: Test methods for external-rotor motors---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.Test methods for external-rotor motors Test methods for external rotor motors ICS 29.160.30 CCS K20 National Standard of the People's Republic of China Replace GB/T 22671-2008 Released on 2024-09-29 2025-04-01 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 Installation methods and requirements ... 1 5 Basic requirements for testing ... 2 6 Experimental preparation ... 2 7 No-load test ... 2 8 Temperature rise test ... 3 9 Determination of efficiency and power factor ... 3 10 Stall torque and stall current ... 4 11 Short-time over-torque test ... 5 12 Overspeed test ... 5 13 Electrical strength test ... 5 14 Turn-to-turn insulation electrical strength test ... 5 15 Leakage current measurement ... 5 16 Measurement of moment of inertia ... 6 17 Wet heat test ... 6 18 Noise Measurement ... 6 19 Measurement of vibration ... 6 20 Protection level test ... 7 21 Cogging torque ... 7 22 Measurement of Back EMF ... 7 23 Torque ripple ... 7 24 Determination of maximum torque ... 7 25 Determination of minimum torque 7 Figure 1 Installation diagram ... 2 Figure 2 Leakage current measurement circuit diagram ... 6ForewordThis 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 22671-2008 "Test methods for external rotor motors". Compared with GB/T 22671-2008, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows. Deleted the vertical installation method and Figure 2 (see Chapter 3 of the.2008 edition); - Deleted "Test requirements" (see Chapter 4 of the.2008 edition), "Measurement" (see Chapter 5 of the.2008 edition) and "Test criteria" "Basic Requirements for Tests" (see Chapter 5) and "Test Preparation" (see Chapter 6 of the.2008 edition) were added. 6); The temperature rise test method has been changed (see Chapter 8, Chapter 8 of the.2008 edition); - The test methods for stall torque and stall current have been changed (see Chapter 10, Chapter 10 of the.2008 edition); - The electric strength test method has been changed (see Chapter 13, Chapter 13 of the.2008 edition); - The turn-to-turn impulse withstand voltage test method has been changed (see Chapter 14, Chapter 14 of the.2008 edition); - The test method for noise determination has been changed (see Chapter 18, Chapter 18 of the.2008 edition); - Added test methods for protection level testing (see Chapter 20); - Added the test method for cogging torque (see Chapter 21); - Added test method for measurement of back electromotive force (see Chapter 22); - Added the test method for torque fluctuation (see Chapter 23); - Added the test method for maximum torque determination (see Chapter 24); - Added the test method for minimum torque determination (see Chapter 25). - 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/TC 26). This document was drafted by. China Electric Power Research Institute Co., Ltd., Guangdong Fanshida Agricultural and Animal Husbandry Fan Co., Ltd., Wolong Electric Drive Co., Ltd. Dongfeng Motor Group Co., Ltd., Midea Group Co., Ltd., Guangdong Welling Motor Manufacturing Co., Ltd., Taizhou Jinyu Electromechanical Co., Ltd. Co., Ltd., Zhuhai Kaibang Motor Manufacturing Co., Ltd., Zhejiang Electric Drive Innovation Center Co., Ltd., Changzhou Xiangming Intelligent Power Co., Ltd., Dongguan Benmo Technology Co., Ltd., Guangdong Xinbao Electric Appliance Co., Ltd., Qingdao Haier Washing Machine Co., Ltd., Haining Aifuluo Electric Co., Ltd. Co., Ltd., Weike Testing Technology Co., Ltd., Hitachi Elevator Motor (Guangzhou) Co., Ltd., Foshan Hongwei Technology Co., Ltd., Weike Certification and Inspection Co., Ltd. Co., Ltd., Hangzhou Saiwei Motor Co., Ltd., Jiaxing Weikai Testing Technology Co., Ltd., General Machinery Key Core Basic Parts Innovation Center (Anhui) Co., Ltd., Huzhou Nanxun Xinlong Motor Co., Ltd., Zhuoerbo (Ningbo) Precision Electromechanical Co., Ltd., Zhejiang Fuerde Drive Dong Technology Co., Ltd., Shenzhen Helishi Intelligent Equipment Co., Ltd., Changzhou Techlan Motor Co., Ltd., Zhoushan Chenguang Electric Co., Ltd., Hangzhou Zhenzheng Weidun Motion Control Technology Co., Ltd. and Huangshan Zhenzhou Electronic Technology Co., Ltd. The main drafters of this document are. Cheng Lei, Gu Zhongli, Ye Qianjie, Luo Junbo, Xie Feng, Wu Yunshan, Wu Di, Ding Wei, Chen Dongsuo, Qiu Yiming, Bi Haitao, Zhang Chuanjia, Liao Xuanhong, Chen Guanghua, Ma Qinggang, Zhu Xianmao, Wu Hongbing, Gao Xiaojun, Chen Jingtao, Xie Jingjuan, Wang Chengyong, Fu Bin, Zhang Xiaobin, Shi Guojun, Sheng Ronghui, Liao Jianyong, Huang Honghua, Jin Jianjun, Ye Peng, and He Jian. The previous versions of this document and the documents it replaces are as follows. First published in.2008 as GB/T 22671-2008; This is the first revision. - Test methods for external rotor motors1 ScopeThis document specifies the basic requirements for testing external rotor motors, describing no-load tests, temperature rise tests, efficiency and power factor tests. Test methods for steady-state test, locked-rotor test and other test items. This document applies to AC asynchronous/synchronous external rotor motors (hereinafter referred to as motors).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. in this document. GB/T 755 Ratings and performance of rotating electrical machines GB/T 4942-2021 Degrees of protection of rotating electrical machines as a whole (IP code) Classification GB/T 5171.1 Small power motors Part 1.General technical requirements GB/T 5171.21-2016 Small power motors Part 21.General test methods GB/T 5171.22-2017 Small power motors Part 22.Test methods for permanent magnet brushless DC motors GB/T 10068-2020 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 conditions3 Terms and definitionsThe terms and definitions defined in GB/T 5171.21-2016 and the following apply to this document. 3.1 external-rotor motor An electric motor with a stator inside and a rotor outside.4 Installation methods and requirements4.1 Installation Method Use a special fixture to connect the motor housing to the dynamometer shaft, as shown in Figure 1. For electric motors whose rotating shaft can be extended, it is advisable to process the extended shaft and directly connect it to the dynamometer for testing. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 22671-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 22671-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 22671-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 22671-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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