GBZ24842-2009 English PDF
Basic dataStandard ID: GB/Z 24842-2009 (GB/Z24842-2009)Description (Translated English): Overvoltage and insulation coordination of 1000kV UHV AC transmission project Sector / Industry: National Standard Classification of Chinese Standard: F20 Classification of International Standard: 29.240 Word Count Estimation: 46,425 Date of Issue: 2009-11-30 Date of Implementation: 2010-05-01 Quoted Standard: GB/T 2900.1; GB/T 2900.12; GB/T 2900.15; GB/T 2900.19; GB/T 2900.20; GB/T 2900.50; DL/T 620 Regulation (derived from): ?National Standard Approval Announcement 2009 No.14 (Total No.154) Issuing agency(ies): Ministry of Health of the People's Republic of China Summary: This standard specifies the 1000 kV UHV AC Transmission measures to limit over-voltage and over- voltage level of restrictive measures adopted after, recommended analytical methods for calculating overhead lines and substations lightning performance. Provides insulation characteristics according to 1000 kV transmission lines and substation equipment and possible influencing factors, from the safe operation and economic rationality to determine the principles of both the equipment insulation levels and air gap distance, methods and recommended values. The technical guidance document applies to the nominal voltage of 1 000 kV Overvoltage and Insulation (highest system voltage of 1 100 kV) UHV power transmission project coordination. GBZ24842-2009: Overvoltage and insulation coordination of 1000kV UHV AC transmission project---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.Overvoltage and insulation coordination of 1000kV UHV AC transmission project ICS 29.240 F20 People's Republic of China national standardization of technical guidance documents 1000 犽 犞 UHV AC power transmission project Over voltage and insulation coordination Posted.2009-11-30 2010-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 lines and equipment on the role of voltage 3 5 temporary over-voltage and limit 3 6 over-voltage operation and protection 4 7 lightning over-voltage and protection 6 8 insulation with 8 Appendix A (Informative) Various types of voltage and standard test voltage waveform 13 Appendix B (informative) 1000kV overhead lines and substations lightning performance calculation method 14 Appendix C (Normative) Weathering correction of external insulation discharge voltage or withstand voltage 18 Appendix D (normative) 1000kV substation metal oxide surge arresters main electrical parameters 19 Appendix E (Informative) Calculation of Insulation Coordination for 1000 kV Lines and Substation Appendix F (Informative) Calculation method of line flashover rate under overvoltage operation Appendix G (Normative) 1000kV AC electrical equipment to withstand a temporary over-voltage requirements 26 Appendix H (informative) 1000kV line tower air gap and substation air gap discharge voltage test data 27 ForewordAppendix C, Appendix D and Appendix G of this Guidance Document are normative appendixes, appendix A, appendix B, appendix E, appendix f and appendix Record H for information appendix. This Guidance Document is proposed by China Electricity Council. This Guidance Document is administered by China Electricity Council. The guidance of technical documents by the UHV AC Transmission Standardization Technical Committee, State Grid Electric Power Research Institute, China Electric Power Science Institute is responsible for the explanation. The guidance of technical documents drafted by. State Grid Corporation, State Grid Electric Power Research Institute, China Electric Power Research Institute. The main drafters of this Guidance Document are Shubin Biao, Chen Weijiang, Du Shuchun, Gu Dingxie, Zhou Peihong, Wang Shaowu, Ge Dong, Chen Yong, Zhang Cuixia, Dai Min, Lin Jiming, Li Zhijun, Ban Liangeng, He Huiwen, Wang Xiaogang, Zhang Liuchun.IntroductionTo date, the current national standards, industry standards and IEC standards or other national standards, are not involved in 1000kV UHV AC transmission Substation over-voltage and insulation with the content, in order to meet China's construction of 1000kV UHV AC power transmission project standardization needs, Special preparation of "1000kV UHV AC transmission project over-voltage and insulation with" national standardization of technical guidance documents. The preparation of this technical document refers to the relevant standards for overvoltage protection and insulation coordination at home and abroad. In the preparation of this guidance Technical documents, included in our country has now completed the construction of 1000kV Changzhi - Nanyang - Jingmen UHV AC power transmission and transformation pilot demonstration project Cheng and research 1000kV Huainan - Shanghai UHV AC double tower on the same power transmission project and other UHV power transmission at home and abroad Cheng's research achievements, design and operation experience. This Guidance Document confirms the measures of limiting over-voltage in 1000kV UHV AC power transmission and transformation project and adopting the restriction measures After the overvoltage level; recommended overhead lines and substations lightning performance calculation and analysis methods; provided according to 1000kV transmission line Insulation characteristics of road and substation equipment and possible influencing factors, determine the level of equipment insulation from both safe operation and economic rationality And air gap distance principles, methods and recommended values. The contents of the current relevant standards, procedures, provisions of the same section, the guidance Technical documents will not be repeated. 1000 犽 犞 UHV AC power transmission project Over voltage and insulation coordination1 ScopeThis Guidance Document stipulates the measures to limit overvoltage in 1000kV UHV AC power transmission project and the adoption of restrictions After the overvoltage level; recommended overhead lines and substations lightning performance calculation and analysis methods; provided according to 1000kV transmission line Insulation characteristics of road and substation equipment and possible influencing factors, determine the level of equipment insulation from both safe operation and economic rationality And air gap distance principles, methods and recommended values. This guidance applies to technical documents for a nominal voltage of 1000kV (system maximum voltage of 1100kV) UHV AC power transmission Over-voltage process and insulation.2 Normative referencesThe following documents contain provisions which, through reference in this Guidance Document, become the provisions of this Guidance Note document. All dated Reference documents, all subsequent amendments (not including errata content), or revisions do not apply to this guidance document, however, drums Recipients of the agreement based on this guidance document are encouraged to study whether the latest versions of these documents are applicable. All undated references The latest version of this document applies to this guidance document. GB/T 2900.1 Electrotechnical terminology Basic terms GB/T 2900.12 Electrotechnical terminology arrester, low voltage surge protector and components GB/T 2900.15 Electrotechnical terminology transformers, transformers, voltage regulators and reactors (GB/T 2900.15-1997, neq IEC 60050 (421)..1990, IEC 60050 (321). 1986) GB/T 2900.19 Electrotechnical terminology High voltage test techniques and insulation coordination (GB/T 2900.19-1994, neqIEC 60071-1. 1993) GB/T 2900.20 Electrotechnical terminology high-voltage switchgear (GB/T 2900.20-1994, neqIEC 60050 (IEV). 1984) GB/T 2900.50 Electrotechnical terminology Power generation, transmission and distribution of generic terms (GB/T 2900.50-2008, IEC 60050-601. 1985, MOD) DL/T 620 AC electrical installations over-voltage protection and insulation coordination3 Terms and definitionsGB/T 2900.1, GB/T 2900.12, GB/T 2900.15, GB/T 2900.19, GB/T 2900.20 and GB/T 2900.50 And the following terms and symbols apply to the guidance of technical documents. 3.1 Terms and definitions 3.1.1 Every square kilometer, the number of annual landfall. 3.1.2 Ground wire on the protection of the angle of the pole tower Department, regardless of the wind bias, the ground on the horizontal plane and the ground line and the outermost sub-wire connection The angle between. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GBZ24842-2009_English be delivered?Answer: Upon your order, we will start to translate GBZ24842-2009_English as soon as possible, and keep you informed of the progress. 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