|
US$459.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 27744-2021: Specification and energy efficiency grades for line-start permanent magnet synchronous motors(frame size 80～355)
Status: Valid GB/T 27744: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 27744-2021 | English | 459 |
Add to Cart
|
5 days [Need to translate]
|
Specification and energy efficiency grades for line-start permanent magnet synchronous motors(frame size 80～355)
| Valid |
GB/T 27744-2021
|
| GB/T 27744-2011 | English | 759 |
Add to Cart
|
4 days [Need to translate]
|
Specification for premium efficiency three-phase permanent magnet synchronous motor (frame size 132~280)
| Obsolete |
GB/T 27744-2011
|
PDF similar to GB/T 27744-2021
Basic data | Standard ID | GB/T 27744-2021 (GB/T27744-2021) | | Description (Translated English) | Specification and energy efficiency grades for line-start permanent magnet synchronous motors(frame size 80��355) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K21 | | Word Count Estimation | 25,296 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 27744-2021: Specification and energy efficiency grades for line-start permanent magnet synchronous motors(frame size 80～355)
---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.
Specification and energy efficiency grades for line-start permanent magnet synchronous motors(frame size 80～355)
ICS 29.160.30
CCSK21
National Standards of People's Republic of China
Replace GB/T 27744-2011
Asynchronous start permanent magnet synchronous motor technical conditions and
Energy efficiency classification (frame size 80~355)
Released on 2021-10-11
2022-05-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅰ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Type, basic parameters and dimensions 1
5 Technical requirements 12
6 Test method 19
7 Inspection rules 19
8 Marking, packaging and warranty period 21
Figure 1 The motor base with feet and no flange on the end cover 4
Figure 2 Motor 6 with base with feet and flange (with through hole) on the end cover
Figure 3 Motor 8 with base without feet and flange (with through hole) on the end cover
Figure 4 Vertical installation, the base does not have feet, the end cover has a flange (with a through hole), and the shaft extends downward motor 10
Table 1 Correspondence between frame number, synchronous speed and rated power 2
Table 2 Motor with feet on the base and no flange on the end cover 4
Table 3 Motors with base feet and flanges (with through holes) on the end cover 7
Table 4 Motors with base without feet and flanges (with through holes) on the end cover 9
Table 5 Vertical installation, the base does not have feet, the end cover has a flange (with a through hole), and the shaft extends downward motor 10
Table 6 Dimensions and tolerances of shaft extension keys 11
Table 7 Radial runout tolerance 11
Table 8 Radial runout and end face runout tolerance 11
Table 9 Parallelism tolerance 12
Table 10 Flatness tolerance 12
Table 11 Symmetry tolerance 12
Table 12 Guaranteed value of efficiency 13
Table 13 Guaranteed value of the ratio of locked-rotor torque to rated torque 14
Table 14 Guaranteed value of the ratio of locked-rotor current to rated current 15
Table 15 Guaranteed value of the ratio of out-of-step torque to rated torque 16
Table 16 Tolerance of guaranteed electrical performance values 17
Table 17 Interval time after power failure 17
Table 18 Vibration intensity limit (effective value) expressed by displacement, velocity and acceleration of different axis center height H (mm) 18
Table 19 No-load maximum A-weighted sound power level noise value LWA 18
Table 20 Inspection items 20
Table 21 Outgoing terminal mark 21
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 27744-2011 "Technical conditions for ultra-efficient three-phase permanent magnet synchronous motors (frame size 132~280)", and
Compared with GB/T 27744-2011, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
---Added the composition and example of the motor model (see 4.1);
---The power type spectrum is changed, the power range is expanded from 2.2kW~55kW to 0.55kW~315kW (see 4.7,.2011 edition
Of 3.6);
---Changed the relationship between the frame number of the motor and the speed and power, the schematic diagram of the motor installation size and the size symbol (see Table 1~Table 5,
Figure 1~Figure 4,.2011 version of Table 1~Table 5, Figure 1~Figure 4);
---The motor efficiency index has been changed and the energy efficiency classification has been added (see 5.4, Table 12, and 4.4 in the.2011 edition, Table 12);
---Changed the power factor of the motor (see 5.5, 4.5 in the.2011 edition);
---Changed the parameters of the motor such as locked-rotor, out-of-step torque multiples, locked-rotor current multiples, etc. (see 5.6, 5.7, 5.8, and 4.6 of the.2011 edition
4.7, 4.10);
---Deleted the minimum torque of the motor regulations (see 4.9, 4.11, 5.4 in the.2011 edition);
--- Changed the vibration intensity limit (see 5.17, table 18, 4.19, table 17 of the.2011 edition);
---Changed the motor noise limit (see 5.18, Table 19, 4.20, Table 18 in the.2011 edition);
---The deviation of the three-phase DC resistance of the motor from the average value has been increased (see 5.19);
---Added the provisions of the three outlet ends of the motor (see 5.22, 8.3, 4.24, 6.3 in the.2011 edition);
--- Increase the content of mechanical inspection, and the inspection items are given in a list (see 7.1, Table 20, Chapter 5 of the.2011 edition).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Rotating Machine Standardization Technical Committee (SAC/TC26).
Drafting organizations of this document. Shanghai Electric System Energy-saving Engineering Technology Research Center Co., Ltd., Jiamusi Electric Co., Ltd., Jiangsu
Dazhong Electric Co., Ltd., Anhui Wannan Electric Co., Ltd., Zhejiang Jiangchao Electric Industrial Co., Ltd., Shandong Huali Electric Group
Co., Ltd., Shandong Lijiu Special Motor Co., Ltd., Jiangsu Xianda Explosion-proof Co., Ltd., Shengli Oilfield Shuntian Energy Saving Technology
Technology Co., Ltd., Zhejiang Fangyuan Sifu Electromechanical Co., Ltd., Jiangsu Shangqi Group Co., Ltd., Zhejiang Dago Motor Co., Ltd., Zhejiang Jinlong Electric
Machinery Co., Ltd., CRRC Zhuzhou Electric Co., Ltd., Shanghai Deqichi Electric Co., Ltd., Hebei Xiangli Motor Manufacturing Co., Ltd., Jiangsu
Large Electric Power Co., Ltd., Shanghai Electrical Equipment Testing Institute Co., Ltd., Hebei Electric Co., Ltd., South Pump Co., Ltd., West
Menzi Motor (China) Co., Ltd., Ningbo Dongli Transmission Equipment Co., Ltd., Zhejiang Zhonglong Motor Co., Ltd., Xiangtan Motor Co., Ltd.
Co., Ltd., Qingdao Tianyi Group Hongqi Motor Co., Ltd., Xi'an Taifu Cima Motor Co., Ltd., Hua Tianxin Intelligent IOT Co., Ltd.
Division, Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd.
The main drafters of this document. Yao Binglei, Liu Wenhui, Zhou Jian, Shen Yali, Lan Yuhua, Wang Qingdong, Deng Xincheng, Lu Jinsheng, Wang Haifeng, He Bin,
Yin Guangyu, Yang Jiming, Ye Ye, Yan Caisong, Zhao Qian, Chen Xiangen, Wang Zaifeng, Pang Zhiyong, Qiu Yuhong, Wei Fudong.
The previous releases of this document and the documents it replaced are as follows.
--- First published as GB/T 27744-2011 in.2011;
---This is the first revision.
Asynchronous start permanent magnet synchronous motor technical conditions and
Energy efficiency classification (frame size 80~355)
1 Scope
This document specifies the type, basic parameters and dimensions, technical requirements, energy efficiency classification, test methods,
Requirements for inspection rules, markings, packaging and warranty period.
This document is applicable to asynchronous starting three-phase permanent magnet synchronous motors (frame size 80~355) (hereinafter referred to as electric motors). Stipulated in this document
The motor rotor has a cage-type starting winding. All series of motors derived from this series of motors can also be implemented by reference.
2 Normative references
The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 191-2008 Graphical signs for packaging, storage and transportation
GB/T 755-2019 Rotating electric machine rating and performance
GB/T 997-2008 Classification of structure type, installation type and junction box position of rotating electric machine (IM code)
GB/T 1971 Rotating motor wire end marking and direction of rotation
GB/T 1993-1993 Rotating electric machine cooling method
GB/T 4772.1-1999 Rotating electric machine size and output power level Part 1.Frame size 56~400 and flange number 55~1080
GB/T 4831-2016 Rotating electric machine product model compilation method
GB/T 4942-2021 Protection level (IP code) classification of the overall structure of rotating electrical machines
GB/T 10068-2020 The measurement, evaluation and limits of mechanical vibration of motors with a shaft center height of 56mm and above
GB/T 10069.1-2006 Rotating electrical machine noise measurement method and limit value Part 1.Rotating electrical machine noise measurement method
GB/T 12665-2017 Damp heat test requirements for motors used under general environmental conditions
GB/T 14711-2013 General safety requirements for small and medium rotating electrical machines
GB/T 22669-2008 Three-phase permanent magnet synchronous motor test method
GB/T 22719.1-2008 Inter-turn insulation of scattered windings of AC low-voltage motors Part 1.Test methods
GB/T 22719.2-2008 Interturn insulation of random windings of AC low-voltage motors Part 2.Test limits
3 Terms and definitions
There are no terms and definitions that need to be defined in this document.
4 Type, basic parameters and dimensions
4.1 The motor model consists of two parts, the product code and the specification code, arranged in sequence (according to the provisions of GB/T 4831-2016).
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 27744-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 27744-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 27744-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 27744-2021_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 27744-2021?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 27744-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|