GB/T 23642-2017 English PDF

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GB/T 23642-2017: Electrical insulating materials and systems -- Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses
Status: Valid

GB/T 23642: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23642-2017	494	Add to Cart	3 days	Electrical insulating materials and systems -- Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses	Valid
GB/T 23642-2009	799	Add to Cart	3 days	Electrical insulating materials and systems instantaneous rise and repeated electrical shock voltage conditions partial discharge (PD) measurement	Obsolete

Similar standards

GB/T 20632.3   GB/T 20632.2   GB/T 31034   GB/T 13542.4   GB/T 23641   

Basic data

Standard ID: GB/T 23642-2017 (GB/T23642-2017)
Description (Translated English): Electrical insulating materials and systems -- Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K15
Classification of International Standard: 29.080.30
Word Count Estimation: 26,288
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Older Standard (superseded by this standard): GB/T 23642-2009
Regulation (derived from): National Standards Bulletin 2017 No. 32
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 23642-2017: Electrical insulating materials and systems -- Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses

---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.
Electrical insulating materials and systems - Electrical measurement of partial discharges (PD) under short rise time and repetitive voltage impulses ICS 29.080.30 K15 National Standards of People's Republic of China Replacing GB/T 23642-2009 Electrical insulation materials and systems Instantaneous rise and repeated voltage shock conditions Partial Discharge (PD) Electrical Measurements discharges (PD) undershortrisetimeandrepetitivevoltageimpulses (IEC /T S61934.2011, IDT) 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Partial discharge pulse measurement during repetitive, instantaneous rising voltage shocks and comparison with measurements at power frequency 2 5 PD detection method 5 6 measuring instruments 9 7 PD measuring instrument sensitivity test 10 8 Repeat the test procedure for increasing and decreasing the impulse voltage level 11 9 Test Report 12 Appendix A (Informative) with a coupling device voltage shock suppression instructions Appendix B (Informative) The use of filtering technology to extract PD pulses from the voltage source 16 Appendix C (informative) RPDIV measurement of the parallel test results 18 Appendix D (informative) PD sounding noise level instance 20 References 21

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 23642-2009 "Insulation materials and systems transient rise and repeated pulse voltage conditions under the local Discharge (PD) Electrical Measurements ", the main technical changes compared with GB/T 23642-2009 are as follows. --- Modify the scope (see Chapter 1,.2009 edition Chapter 1); --- Modify the definition of the term "partial discharge pulse" (see 3.3,.2009 edition 3.3); --- Modify the definition of the term "repetitive partial discharge inception voltage" (see 3.4,.2009 edition 3.4); --- Modify the definition of the term "repeated discharge discharge voltage" (see 3.5,.2009 edition 3.5); --- Removed the terms "PD pulse repetition rate" and "surge voltage rise rate" (see.2009 version 3.10 and 3.12); --- Modify the terms "pulse width and pulse duty cycle" (3.9 and 3.10, see the.2009 edition of 3.14 and 3.15); --- Added "Impact Generator" clause (see 4.4); --- Removed the "impact of voltage source" clause (see.2009 version 4.4.2); --- Added "Figure 6, Figure 10, Figure 11 and Figure 12" (see Figure 6, Figure 10, Figure 11 and Figure 12); --- Modify the "PD measurement sensitivity" chapter (see Chapter 7,.2009 edition Chapter 7); --- Removed the "test circuit" and "test procedures" provisions (see the.2009 edition of Chapter 8 and Chapter 9); --- Added "Test procedures for repetitive increases and decreases in the magnitude of impulse voltages" (see Chapter 8); --- Modify the "test report" chapter (see Chapter 9,.2009 edition Chapter 10); --- Added "Appendix C and Appendix D" (see Appendix C and Appendix D). This standard uses the translation method identical with IEC /T S61934.2011 "Electrical Insulation Materials and Systems Instantaneous rise and repeated voltage punch Partial discharge (PD) electrical measurement under impact conditions ". 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 unit. Taihu Lake Suzhou Electrical New Materials Co., Ltd., Beijing Institute of Electrical Engineering Machinery Industry, Dongfang Electric Gas Group Dongfang Electrical Machinery Co., Ltd., Shanghai Electric Apparatus Research Institute, Changzhou Weiyuan Electrical Equipment Co., Ltd., Harbin Institute of Technology, Nanjing Automobile Wheeler Changfeng New Energy Co., Ltd., ABB High Voltage Electrical Machinery Co., Ltd., Shanghai Shen Fa Detection Instrument Co., Ltd., Sichuan University, West An Jiaotong University. The main drafters of this standard. Liu Yali, Chen Hao, Guo Zhenyan, Wu Bin, Zhang Shengde, Zhao Chao, Liang Zhiming, Cui Hesong, Guo Ning, Tian Jianzhong, Xia Xingchen, Wang Peng, Ye Xianang, Xu Baodi, Han Qingzhan, Liu Xuezhong, Lin Ran Ran. Electrical insulation materials and systems Instantaneous rise and repeated voltage shock conditions Partial Discharge (PD) Electrical Measurements

1 Scope

This standard specifies the electrical insulation system (EIS) Partial discharge (PD) occurs when subjected to repeated voltage shocks generated by power electronics equipment. Offline measurement method. This standard applies to power electronic equipment supply EIS, such as motors, inductive reactors and wind turbines. Note 1. The use of this standard for certain products may require the addition of other procedures. Note 2. As this standard outlines an emerging technology, the same applies to experience and precautions as well as to specific preconditioning conditions. The following measurement methods except. --- Optical or ultrasonic based on the PD detection method; --- No repetitive voltage surge (such as lightning impact or switching device switching impact) PD measurement.

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 7354-2003 Partial discharge measurement (IEC 60270.2000, IDT) IEC 60034 (all parts) Rotating electrical machines (Rotatingelectrmachines)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Repetitive voltage shock repetitivevoltageimpulses The voltage surge generated by the switching of the power electronics carrier or drive frequency. 3.2 Partial discharge partialdischarge; PD Inter-conductor insulation is only partially bridged by electrical discharges. Remark GB/T 7354-2003, the definition 3.1. 3.3 Partial discharge pulse partialdischargepulse Current pulses measured at the end of the test piece during partial discharge in the test piece. Note 1. For the purpose of testing, the pulse is measured with the appropriate test circuit connected to the test circuit. Note 2. According to this standard, the current or voltage signal detected at the output is related to the PD pulse at the input. Note 3. Rewrite GB/T 7354-2003, the definition of 3.2. 3.4 Repetitive partial discharge start voltage repetitivepartialdischargeinceptionvoltage; RPDIV The minimum peak-to-peak surge voltage of five PD pulses appears in ten voltage shocks of the same polarity. NOTE For the specified test time and test circuit, this value is the average value and the voltage applied to the test piece gradually increases from undetectable PD. ......

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