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GB/T 24846-2018 English PDF

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GB/T 24846-2018: Preventive test standards of 1 000 kV AC electrical equipment
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Basic data

Standard ID GB/T 24846-2018 (GB/T24846-2018)
Description (Translated English) Preventive test standards of 1 000 kV AC electrical equipment
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard F24
Classification of International Standard 29.240
Word Count Estimation 42,422
Date of Issue 2018-07-13
Date of Implementation 2019-02-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 24846-2018: Preventive test standards of 1 000 kV AC electrical equipment

---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.
Preventive test standards of 1 000 kV AC electrical equipments ICS 29.240 F24 National Standards of People's Republic of China Replace GB /Z 24846-2009 1000kV AC electrical equipment preventive test procedures Published on.2018-07-13 Implementation of.2019-02-01 State Market Supervisory Administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 terms and definitions, symbol 2 4 General 3 5 Power Transformers and Reactors 4 6 transformer 16 7 switchgear 18 8 casing 21 9 insulator 22 10 insulating oil and sulfur hexafluoride gas 24 11 metal oxide arrester 26 12 fixed series capacitor compensation device 27 13 overhead power lines 34 14 Grounding device 34 Appendix A (Normative Appendix) Significant Difference Analysis Method 36 Appendix B (informative) (Affected by the environment) Analysis of the aspect ratio of the measured values 37 Appendix C (Normative) The rated insulation level of 1000kV AC electrical equipment 38 Appendix D (Normative Appendix) Site Contamination Level 39

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB /Z 24846-2009 "1000kV AC electrical equipment preventive test procedures", and GB /Z 24846-2009 The main changes are as follows. --- Added terminology and definitions "initial value difference" and "fixed series capacitor compensation device" (see 3.1.5 and 3.1.13); --- Added the section "Fixed Series Capacitor Compensation Devices" (see Chapter 12); ---Modified "General" "Power Transformers and Reactors" "Switching Devices" "Insulators" "Insulating Oil and Sulfur Hexafluoride Gas" and "Metal Test items, cycles and requirements for the section "Oxide arresters" (see Chapters 4, 5.1, 5.2, 5.3, 7.1, 9.2, Chapter 10 and 11.1, Chapters 4, 5.1, 5.2, 5.3, 7.1, 9.2, Chapter 10 and 11.1 of the.2009 edition; --- Removed the "experience test method for gas-insulated metal-enclosed switchgear" (see Appendix C of the.2009 edition). This standard was proposed by the China Electricity Council. This standard is under the jurisdiction of the National UHV AC Transmission Standardization Technical Committee (SAC/TC569). This standard was drafted. State Grid Corporation, China Electric Power Research Institute Co., Ltd., State Grid Operation Branch, State Grid Weibei Power Institute of Research, State Grid Shanxi Electric Power Company, State Grid Henan Electric Power Company, State Grid Hubei Electric Power Co., Ltd., State Grid Shanghai Electric Power Corporation Division, State Grid Fujian Electric Power Co., Ltd., State Grid Shandong Electric Power Company. The main drafters of this standard. Li Jinzhong, Sun Gang, Liu Xueli, Deng Chun, Zhang Shuqi, Gao Fei, Shaanxi Huaping, Xiao Xiaoshi, Wang Jianyi, Guo Rui, Chen Yufeng, Yan Chao, Fu Chenxi, Lian Jianhua, Jin Tao, Lin Yizhen, Zhao Zhigang, Wu Chao, Cai Wei. The previous versions of the standards replaced by this standard are. ---GB /Z 24846-2009. 1000kV AC electrical equipment preventive test procedures

1 Scope

This standard specifies the project, period, method and judgment criteria for preventive testing of 1000kV AC electrical equipment. This standard applies to 1000kV AC electrical equipment.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 261 Determination of flash point method Binski-Martin closed flash point cup method GB/T 264 petroleum product acid value determination method GB/T 507 insulation oil breakdown voltage measurement method GB/T 511 Determination of mechanical impurities in petroleum products and additives (gravimetric method) GB/T 1094.3 Power transformers - Part 3. Insulation level, insulation test and external insulation air gap GB 2536 Unused mineral insulating oil for electrical fluid transformers and switches GB/T 5654 Measurement of relative permittivity, dielectric loss factor and DC resistivity of liquid insulating materials GB/T 6541 Petroleum product oil-to-water interfacial tension method (circular method) Determination of water-soluble acid in transformer oil during GB/T 7598 operation Determination of moisture content of transformer oil and turbine oil in GB/T 7600 operation (Coulomb method) GB/T 11023 high-voltage switchgear sulphur hexafluoride gas seal test method GB/T 11142 Insulating oil gassing method under electric field and ionization GB/T 12022 industrial sulfur hexafluoride DL/T 345 Guidelines for the application of UV diagnostic techniques for live equipment General technical requirements for silicone rubber insulation materials for DL/T 376 composite insulators DL/T 423 Determination of gas content in insulating oils - Vacuum differential pressure method DL/T 432 Method for measuring particle contamination in power oil DL/T 506 sulphur hexafluoride electrical equipment DL/T 626 Deteriorated Disc Suspension Insulator Inspection Procedure DL/T 664 Infrared Diagnostic Application Specification for Live Equipment Gas chromatographic determination of gas content in DL/T 703 insulating oil DL/T 864 Nominal voltage higher than 1000V AC overhead line composite insulators DL/T 916 sulfur hexafluoride gas acidity determination method DL/T 917 sulfur hexafluoride gas density determination method DL/T 918 Determination of hydrolyzable fluoride in sulphur hexafluoride gas DL/T 919 Determination of mineral oil content in sulphur hexafluoride gas (infrared spectroscopy) Gas chromatographic determination of air and carbon tetrafluoride in DL/T 920 sulfur hexafluoride gas DL/T 1400-2015 oil immersed transformer temperature measuring device on-site calibration specification SH/T 0804 Electrical insulating oil Corrosive sulfur test Silver sheet test method

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