GB/T 25091-2010 English PDF

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GB/T 25091-2010: High-voltage direct-current disconnectors and earthing switches
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25091-2010	419	Add to Cart	3 days	High-voltage direct-current disconnectors and earthing switches	Valid

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Basic data

Standard ID: GB/T 25091-2010 (GB/T25091-2010)
Description (Translated English): High-voltage direct-current disconnectors and earthing switches
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K43
Classification of International Standard: 29.130.10
Word Count Estimation: 18,199
Date of Issue: 2010-09-02
Date of Implementation: 2011-02-01
Quoted Standard: GB 1985-2004; GB/T 4585-2004; GB/T 11022-1999; GB/T 13498-2007; GB 13540-2009; GB/T 16927.1-1997; GB/T 20635-2006
Regulation (derived from): Announcement of Newly Approved National Standards No. 4 of 2010 (total 159)
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
Summary: This standard specifies the high voltage DC disconnectors and earthing switches use conditions, ratings, design and construction, testing, equipment selection guidelines and other aspects of common technical requirements in order to harmonize the basic equipment design and test requirements to ensure safe operation of the system. This standard applies to the design and installation of indoor and outdoor, running on �� 800kv and below HVDC systems in isolation and earthing switches, This standard also applies to these disconnectors and earthing switch operating mechanism and auxiliary devices.

GB/T 25091-2010: High-voltage direct-current disconnectors and earthing switches

---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.
High-voltage direct-current disconnectors and earthing switches ICS 29.130.10 K43 National Standards of People's Republic of China High voltage DC isolating switch and earthing switch 2010-09-02 release 2011-02-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released Directory Preface III 1 Overview 1 1.1 Scope 1 1.2 Normative references 1 2 normal and special conditions of use 1 3 Terms and definitions 1 4 rated 1 4.1 Rated DC voltage (Ur) 1 4.2 Rated insulation level 2 4.3 Rated current and temperature rise 2 4.4 Rated short time withstand current (Ik) 2 4.5 Rated peak withstand current (Ip) 2 4.6 Rated short duration (tk) 2 4.7 DC filter high voltage side of the isolation switch opening and closing DC filter capacity of the rated 2 4.8 DC filter high voltage side isolation switch electrical life 3 4.9 Rated contact area 3 4.10 Rated terminal mechanical load 3 4.11 Mechanical life rating 3 4.12 auxiliary power supply 3 4.13 Radio interference voltage level (RIV) 3 Structure Type 3 5.1 General 3 5.2 Flammability 3 5.3 creepage distance 3 5.4 Terminals 4 5.5 points, closing operation 4 5.6 operating mechanism 4 5.7 Protection class of enclosure 4 5.8 Interlock requirements 4 5.9 Mechanical strength 4 5.10 Reliability of location 4 5.11 auxiliary contact 4 5.12 ground 4 5.13 Seismic requirements 4 5.14 Electromagnetic compatibility 4 5.15 Nameplate 4 6 type test 4 6.1 Overview 4 6.2 Insulation test 5 6.3 Radio interference test 6 6.4 Main circuit resistance measurement 6 6.5 Temperature rise test 6 6.6 Short-time withstand current and peak withstand current test 6 6.7 Degree of protection test 7 6.8 Electromagnetic compatibility test (EMC) 7 6.9 Operation and mechanical life test 7 6.10 Operation under severe freezing conditions 7 6.11 Operation at extreme temperature 7 6.12 Seismic test 7 6.13 DC filter high voltage side isolation switch opening and closing harmonic current capability test 7 7 routine test 8 7.1 Insulation test of main circuit 8 7.2 Test of auxiliary circuit and control circuit 8 7.3 Main circuit resistance measurement 8 7.4 Mechanical Operation Test 8 7.5 Design inspection and visual inspection 8 8 field transfer test 8 8.1 Inspection after installation 8 8.2 Insulation resistance measurement 9 8.3 Insulation test for auxiliary and control circuits 8.4 Main circuit resistance measurement 9 8.5 check the dynamic, static contact between the distance 9 8.6 Operation agency test 9 8.7 porcelain flaw detection test 9 Guidance on the selection of DC disconnectors and earthing switches 9.1 Overview 9 9.2 Selection of ratings under normal operating conditions 9 10 Information provided with inquiries, tenders and orders 10.1 Information provided with inquiries and orders 10.2 Information provided with tenders 11 Rules for transport, storage, installation, operation and maintenance 11.1 Conditions for transport, storage and installation 12 11.2 Installation 12 11.3 running 12 11.4 Maintenance 12 12 security 12 12.1 Electrical aspects 12 12.2 Mechanical aspects 12 12.3 hot aspects 12 12.4 Operational aspects 12 Appendix A (informative) DC disconnector and earthing switch typical arrangement 13 Appendix B (informative) DC system overload current 14 B.1 Domestic ± 800kV DC system overload current 14 B.2 Domestic ± 500kV DC system overload current 14

Foreword

Appendix A and Appendix B of this standard are informative. This standard is proposed by China Electrical Equipment Industry Association. This standard by the National High Voltage Switchgear Standardization Technical Committee (SAC/TC65) centralized. The unit responsible for this standard. Xi'an High Voltage Electric Appliance Research Institute limited liability company Xi'an high voltage electrical appliances research institute. This standard Participation Unit. China Southern Power Grid Technology Research Center, Machinery Industry Beijing Institute of Technology and Economic Technology, Xi'an West High Voltage Switch Limited liability company, Henan Ping high electrical limited liability company, the new Northeast Electric (Shenyang) High Voltage Switch Co., Ltd., the State Grid Corporation of special high Pressure operation and transportation, Southwest Electric Power Design Institute. The main drafters of this standard. Cheng Xiao Xuan, Gou Ruifeng, Rao Hong, Xu Guanghui, Yang Xiaohui. This standard participates in the drafters. Li Xiaolin, Guo Liping, You Yimin, Gao Wen, Du Haiyan, Wang Tianxiang, Wang Yuchi, Yan Guanxing, Wang Xuefan, Li Fucheng, Wang Qi, Li Yan, Zhang Huiliang, Li Binbin, Guo Xianshan, Wang Jing. High voltage DC isolating switch and earthing switch

1 Overview

1.1 Scope This standard specifies the use conditions, ratings, design and structure of the high voltage DC isolating switch and earthing switch, test and equipment selection guide And other aspects of the general technical requirements, in order to unify the basic design of equipment and test requirements to ensure the safe operation of the system. This standard is suitable for the design and installation in the indoor and outdoor, running in ± 800kV and below the high voltage DC system in the isolation switch and grounding switch. This standard also applies to these isolating switches and grounding switches of the operating mechanism and auxiliary devices. 1.2 Normative references The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all (Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard. High voltage AC disconnectors and earthing switches (IEC 62271-102..2002, MOD) GB/T 4585-2004 Artificial contamination test for high voltage insulators for AC systems (IEC 60507..1991, IDT) GB/T 11022-1999 Common technical requirements for high voltage switchgear and control equipment standards (eqvIEC 60694..1996) Glossary of terms for HVDC transmission (IEC 60633..1998, IDT) GB/T 13498-2007 GB 13540-2009 Seismic requirements for high voltage switchgear and control equipment (IEC 62271-2..2003, MOD) GB/T 16927.1-1997 High voltage test technology - Part 1. General test requirements (eqvIEC 60060-1. 1989) Technical requirements for high - voltage electrical appliances for high altitude GB/T

2 normal and special conditions of use

Chapter 2 of GB/T 11022-1999 applies and is amended as follows. Installation of DC isolation switches and earthing switches at altitudes above 1000 m, external insulation Insulated water under standard reference atmospheric conditions Should be in accordance with GB/T 20635-2006 5.1 to be amended.

3 terms and definitions

Chapter 3 of GB/T 11022-1999 and GB/T 13498-2007 shall apply and shall be supplemented as follows. 3.1 DC disconnector and earthing switch DCdisconnectorandearthingswitch For the high-voltage DC converter station DC field isolation switch and grounding switch, the normal operation of the system carrying the corresponding DC stress. Note. DC disconnectors and earthing switches can be combined or stand-alone design. 3.2 Valve hall ground switch valvehalearthingswitch Installed in the hall of the grounding switch, for the single column ground type. According to the design of the valve hall, the static contact can be installed in the valve hall inside the mother or pressure Hooded.

4 rating

4.1 Rated DC voltage (Ur) Rated DC voltage for the DC isolation switch and grounding switch system where the maximum voltage limit, the rated DC voltage of the standard value see Table 1. ......

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