GB 25958-2010 PDF English
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Minimum allowable values of energy efficiency and values of efficiency grade for small-power motors
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GB 25958-2010: PDF in English GB 25958–2010
ICS 27.010
F 01
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Minimum allowable values of energy efficiency and
values of efficiency grade for small-power motors
ISSUED ON. JANUARY 10, 2011
IMPLEMENTED ON. JULY 01, 2011
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative and Quoted References ... 4
3 Terms and Definitions ... 4
4 Technical requirements ... 5
4.1 Basic requirements ... 5
4.2 Energy efficiency grade of motor ... 6
4.3 Minimum allowable value of energy efficiency for motor ... 12
4.4 Target minimum allowable value of energy efficiency for motor
... 12
4.5 Evaluating value of energy conservation for motor ... 12
5 Test Method ... 12
References and Original Chinese Documents ... 13
Foreword
Subclause 4.3 and 4.4 of this Standard are mandatory, the rest clauses are
recommendatory.
This Standard is proposed by Environment and Resource Integrated Utilization
Department of National Development and Reform Commission.
This Standard is under the jurisdiction of National Technical Committee (SAC/TC 20) on
Energy Fundamentals and Management of Standardization Administration of China.
The responsible drafting organizations are. Guangzhou Electrical Apparatus Research
Institute, China Standards Research Institute, Low-power Machinery Subcommittee of
National Rotating Machinery Standardization Administration, Shanghai Entry-Exit
Inspection And Quarantine Bureau, Guangdong Welling Motor Manufacturing Co., Ltd,
International Copper Association, Emerson(China) Motor Co., Ltd, Kaiping Sanwei
Micromotor Co., Ltd, Haicheng Suprasuny Pump Co., Ltd, Nanjing Nanvi Electric Motor
Co., Ltd, Foshan City Nanhai Jiuzhou Popula Fan Co., Ltd, Tianjin Zhonghuan Tianhong
Micromotor Co., Ltd, Foshan Tianyang Motor Manufacturing Co., Ltd, WeiHai Techfull
Simo Motor Co., Ltd, Wuhu Tongli Motor Co.,Ltd and Guangzhou Vkan Certification &
Testing Co., Ltd.
The chief drafting staffs of this standard are. Zhao Yuejin, Luo Junbo, Wu Zhan, Fu
Peigang, Liu Zhihu, Zhao Kai, Luo Huaiping, Cui Hengdong, Luo Xingen, Zhang Chuanjia,
Li Lulu, Wu Yunshan, Lu Xiaomao, Zhang Shiping, Du Yong, Qu Yingjie, Wang
Hongsheng, Xu Wei, and Li Pengcheng.
Minimum allowable values of energy efficiency and
values of efficiency grade for small-power motors
1 Scope
This standard specifies energy efficiency grade, minimum allowable values of energy
efficiency, target minimum allowable values of energy efficiency, evaluating values of
energy conservation, and test method for small-power asynchronous motors (hereinafter
referred to as “motor”).
This standard is applicable to general purpose motors - small-power 3-phase
asynchronous motor (10 W to 2200 W) powered by 50 Hz & 690 VAC and below voltage;
capacitor running asynchronous motor (10 W to 2200 W); capacitor starting asynchronous
motor (120 W to 3700 W), double-value capacitor asynchronous motor (250 W to 3000 W);
and motor (6 W to 550 W) for air conditioning fan in room etc.
2 Normative and Quoted References
The articles contained in the following documents have become this standard when they
are quoted herein. For the dated documents so quoted, all the modifications (excluding
corrections) or revisions made thereafter shall not be applicable to this Standard. For the
undated documents so quoted, the latest editions shall be applicable to this Standard.
GB/T 1032 Test procedures for three-phase induction motors
GB/T 5171 General technical requirements for small power motors
GB/T 9651-2008 Test procedures for single-phase induction motor
GB 12350 Safety requirements of small-power motors
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
4.2 Energy efficiency grade of motor
Energy efficiency grade of motor is divided into 3 grades - Grade 1 is the highest grade of
energy efficiency. Under the rated power output, the efficiency of each grade’s motor shall
not be less than those specified in Tables 1 to 5.
The permissible efficiency tolerance of motors shall be in accordance with GB/T 5171 and
in compliance with relevant product standards.
For motor of which rated power is not listed in Tables 1 to 5, its efficiency may be
determined by the linear interpolation method.
Table 4 Energy efficiency grade and efficiency of double-value-capacitor
asynchronous motor %
Rated
Power
Energy Efficiency Grade
Grade 1 Grade 2 Grade 3
2 Poles 4 Poles 2 Poles 4 Poles 2 Poles 4 Poles
250 - 69,3 - 65,7 - 62,0
370 73,8 72,0 70,5 68,6 67,0 65,0
550 76,4 74,6 73,3 71,4 70,0 68,0
750 78,1 77,2 75,2 74,2 72,0 71,0
1100 80,6 78,9 77,9 76,1 75,0 73,0
1500 81,4 80,6 78,8 77,9 76,0 75,0
2200 82,2 81,4 79,8 78,8 77,0 76,0
3000 83,9 82,2 81,6 79,8 79,0 77,0
References and Original Chinese Documents
[1] GB 25958-2010 Minimum allowable values of energy efficiency and values of
efficiency grade for small-power motors.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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