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GB/T 34665-2017 English PDF

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GB/T 34665-2017: Measurement method of dielectric dissipation factor of electric machinery coil/winding insulation
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PDF similar to GB/T 34665-2017


Standard similar to GB/T 34665-2017

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Basic data

Standard ID GB/T 34665-2017 (GB/T34665-2017)
Description (Translated English) Measurement method of dielectric dissipation factor of electric machinery coil/winding insulation
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K15
Classification of International Standard 29.080.30
Word Count Estimation 18,117
Date of Issue 2017-11-01
Date of Implementation 2018-05-01
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34665-2017: Measurement method of dielectric dissipation factor of electric machinery coil/winding insulation


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Measurement method of dielectric dissipation factor of electric machinery coil/winding insulation ICS 29.080.30 K15 National Standards of People's Republic of China Motor Coil/Winding Insulation Dielectric Loss Factor Measurement methods Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 measurement principle and measurement equipment 2 5 single coil measurement 7 Whole machine winding measurement 12

7 Analysis and Reporting

References 15

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Electrical Equipment Industry Association. This standard by the National Electrical Insulation Materials and Insulation Evaluation Committee Standardization Technical Committee (SAC/TC301) centralized. This standard was drafted by Dongfang Electric Group Dongfang Electric Co., Ltd., Machinery Industry Beijing Institute of Electrical Technology and Economy, Jiaxing City, new Continental Electrical Co., Ltd., Harbin Electric Machinery Co., Ltd., Zhejiang Rongtai Technology Enterprises Ltd., Shunde District of Foshan City, quality and technology Supervision Standards and Coding Institute, Shanghai Electric Power Station Equipment Co., Ltd. Shanghai Power Plant, Suzhou Taihu Electrotechnical New Materials Co., Ltd., North Beijing North Heavy Duty Turbine Co., Ltd., Suzhou Jufeng Electrical Insulation System Co., Ltd., Harbin Electric Power Equipment Co., Ltd., Shandong Jinan Power Equipment Co., Ltd., Shanghai Voith Hydro Equipment Co., Ltd. The main drafters of this standard. Paint Lin, Liu Yali, Huang Shaobo, Guo Zhenyan, Wu Xiaolei, Pan Yanming, Chen Hao, Hu Bo, Liu Fenjuan, Wu Hujun, Wei Jingsheng, Qi Shifa, Di Ningyu, Li Junsheng, Zhu Yulong, Xia Yu, Zhang Chunqi, Wang Lijun, Yang Kunxia, Liu Hui, Chen Yang, Xia Zhifeng, Shen Bin, Wang Wen. Motor Coil/Winding Insulation Dielectric Loss Factor Measurement methods

1 Scope

This standard specifies the measurement method of motor winding/winding dielectric loss factor and its increment. This standard applies to different rated voltage level of the rotating motor stator forming coil/winding, such as the rated voltage level of 6kV and above Of the motor, but also for single-stator coil in the core (that is, before and after the next line) and stator winding dielectric loss factor and its incremental measurement. This standard applies to the completion of the insulation curing coil/winding, does not apply to uncured coils and windings.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 7354 partial discharge measurement GB/T 16927.1 high voltage test techniques - Part 1. General definitions and test requirements GB/T 16927.2 high voltage test techniques - Part 2. Measurement system

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Capacitance Conductors and dielectric devices can store charge characteristics when there is a potential difference between the conductors. Note 1. C is the ratio between the charge quantity q and the potential difference U, see Eq. (1). The capacitance value is always positive, when the charge and potential difference units are Coulomb And volts, the capacitance unit is Farah. C = (1) Note 2. See GB/T 31838.1-2015 3.4. 3.2 Dielectric dissipation factor dielectricdissipationfactor tan δ The absolute value of the ratio of the imaginary part to the real part of the complex relative permittivity is given by Eq. (2). tan δ = ε "r ε'r (2) Note See 3.3.4 of GB/T 31838.1-2015. 3.3 Dielectric loss factor incrementally incremental dielectric pressure factor factor Δtan δ

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