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GB/T 24843-2018 English PDF

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GB/T 24843-2018: Technical specification of 1 000 kV single phase oil-immersed auto-transformer
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Basic data

Standard ID GB/T 24843-2018 (GB/T24843-2018)
Description (Translated English) Technical specification of 1 000 kV single phase oil-immersed auto-transformer
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K41
Classification of International Standard 29.240
Word Count Estimation 22,241
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 24843-2018: Technical specification of 1 000 kV single phase oil-immersed auto-transformer

---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.
Technical specification of 1 000 kV single phaseoil-immersed auto-transformer ICS 29.240 K41 National Standards of People's Republic of China Replace GB /Z 24843-2009 1000kV single-phase oil immersed autotransformer power transformer specifications Published on.2018-07-13 Implementation of.2019-02-01 State Market Supervisory Administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 terms and definitions, symbol 1 4 Conditions of use 2 5 performance parameters 3 6 Structure and group component requirements 6 7 test 8 8 Marking, packaging and shipping 12 Appendix A (informative) High-voltage line end long-term induced voltage test (ACLD) and medium-voltage line end short-time induction withstand voltage test (ACSD) Description 13 Appendix B (informative) Comparison of rated insulation levels of UHV transformer windings in various countries 15 Appendix C (informative) Introduction to the typical 1000kV single-phase oil-immersed autotransformer wiring principle 16

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB /Z 24843-2009 "1000kV single-phase oil-immersed self-coupling power transformer technical specification". With GB /Z 24843- The main technical changes in.2009 are as follows. --- Added some terms and definitions, including disintegration transport (3.1.7), on-site assembly (3.1.8); --- Updated the pollution level requirements (see 4.1.8, 4.1.8 of the.2009 edition); --- Increased on-load tap-changing range (see Table 1); --- Increased the no-load loss and deviation requirements of 1500MVA UHV transformers (see 5.4.1); --- Increased requirements for on-load tap-changers (see 6.4); --- Increased casing structure requirements (see 6.6.5); --- Increased the test program for dissolved gases in oil (see 7.2.1); --- Increase the understanding of body transport and on-site assembly and other related content (see 6.1, 8.1.6); --- For the high-voltage line end long-term induced voltage test (ACLD) and medium-voltage line end short-time induction withstand voltage test (ACSD) The description was further clarified (see Appendix A); --- Added schematic diagram of constant flux compensation [see Appendix C, Figure C.1b)]. 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 Electric Power Research Institute, Shenyang Transformer Research Institute, TBEA Shenyang Transformer Group Co., Ltd., Baoding Tianwei Baobian Electric Co., Ltd., Xi'an Xidian Transformer Co., Ltd. Any company. The main drafters of this standard. Shu Yinyi, Li Guangfan, Zhu Yinghao, Liu Zehong, Fu Xiian, Wang Shaowu, Ling Wei, Hu Huiran, Wang Mengyun, Wanda, Wang Xiaoning, Li Jinzhong, Zhong Juntao, Zhang Xile, Ruan Chuanlong, Li Bo, Wu Zhirong, Sun Shubo, Liu Dongsheng, Xie Qingfeng, Zhang Shuqi, Wang Ninghua, Zhao Zhigang, Guo Huihao. The previous versions of the standards replaced by this standard are. ---GB /Z 24843-2009. 1000kV single-phase oil immersed autotransformer power transformer specifications

1 Scope

This standard specifies the performance parameters, structural requirements, tests and signs, packaging and transportation of 1000kV single-phase oil-immersed autotransformer power transformers. Requirements for losing and other aspects. This standard applies to single-phase oil immersed auto-coupling power transformers of 1000kV class with rated capacity of 1000MVA and 1500MVA. Pressure device.

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 1094 (all parts) Power Transformers GB/T 1094.1 Power transformers - Part 1. General GB/T 1094.2 Power transformers - Part 2. Temperature rises of liquid immersed transformers GB/T 1094.3-2003 Part 3. Insulation level, insulation test and external insulation air gap GB/T 1094.4 Power transformers - Part 4. Lightning impulse test and operational impulse test for power transformers and reactors Guidelines GB/T 1094.5 Power transformers - Part 5. Ability to withstand shorts GB/T 1094.7 Power transformers - Part 7. Load guides for oil-immersed power transformers GB/T 1094.10 Power transformers - Part 10. Sound level determination GB/T 2424.25 Environmental testing of electrical and electronic products - Part 3. Test guides GB 2536 Unused mineral insulating oil for electrical fluid transformers and switches GB/T 2900.15 Electrotechnical terminology transformers, transformers, voltage regulators and reactors GB/T 5273-2016 High-voltage electrical terminal size standardization GB/T 10230.1 Tap-changers - Part 1. Performance requirements and test methods GB 50994 Industrial Enterprise Electrical Equipment Seismic Evaluation Standard IEC 60296.2012 Unused mineral insulating oil for liquid transformers and switchgear for electricians (Fluidsforelectro- technicalapplications-Unusedmineralinsulatingoilsfortransformersandswitchgear) 3 terms and definitions, symbols 3.1 Terms and definitions The following terms and definitions as defined in GB/T 1094.1 and GB/T 2900.15 apply to this document. 3.1.1 Main transformer mainpartoftransformer When the 1000kV single-phase oil-immersed self-coupling power transformer adopts the transformer body part and the voltage regulation compensation part, the transformer is arranged.

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