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GB/T 20993-2012 English PDF

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Q: Should I purchase the latest version GB/T 20993-2012?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20993-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20993-2012: DC filter capacitors and neutral bus surge capacitors for HVDC transmission system
Status: Valid

GB/T 20993: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20993-2012	599	Add to Cart	5 days	DC filter capacitors and neutral bus surge capacitors for HVDC transmission system	Valid
GB/T 20993-2007	919	Add to Cart	6 days	HVDC DC filter capacitor	Obsolete

Similar standards

GB/T 19212.5 GB/T 11024.4 GB/T 11024.2 GB/T 22582 GB/T 26215 GB/T 19749.4

Basic data

Standard ID: GB/T 20993-2012 (GB/T20993-2012)
Description (Translated English): DC filter capacitors and neutral bus surge capacitors for HVDC transmission system
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K42
Classification of International Standard: 31.060.70
Word Count Estimation: 26,268
Older Standard (superseded by this standard): GB/T 20993-2007
Quoted Standard: GB/T 2900.16; GB/T 11024.1; GB/T 11024.4; GB/T 13498; GB/T 16927.1; GB/T 20994
Regulation (derived from): National Standards Bulletin No. 13 of 2012
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 HVDC system with DC filter capacitors and neutral bus surge capacitor terms and definitions, conditions of use, quality requirements and testing, design and construction and other basic requirements. This standard applies to hi

GB/T 20993-2012: DC filter capacitors and neutral bus surge capacitors for HVDC transmission system

---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.
DC filter capacitors and neutral bus surge capacitors for HVDC transmission system ICS 31.060.70 K42 National Standards of People's Republic of China Replacing GB/T 20993-2007 HVDC DC filter capacitor Shock and neutral bus capacitor Issued on. 2012-06-29 2012-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms, Definitions and Abbreviations 1 4 Conditions 5 5 Quality requirements and testing 6 6 design and structural requirements 13 7 15 insulation level 15 8 Overload 9 Safety requirements 15 10 16 Flag 11 for installation and operation are 17 Appendix A (informative) HVDC systems commonly filter DC wiring diagram Example 19 Annex B (informative) formula capacitor discharge time of 20 Annex C (informative) HVDC converter stations and neutral DC bus filter capacitor mounting arrangement schematic impact 21 References 22 Figure A.1 double-tuned filter wiring diagram Example 19 Figure A.2 triple-tuned filter wiring diagram Example 19 Figure C.1 HVDC converter stations and neutral DC bus filter capacitor mounting arrangement schematic impact 21 Table 1 Upper temperature range with 6 letter code Table 2 insulation level to consider when selecting Ut 9 Ambient air temperature during the thermal stability test in Table 3 of 10 Table 4 capacitors can withstand the torque conductive bars 13

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 20993-2007 "HVDC systems with DC filter capacitor", and GB/T 20993-2007 phase Ratio, the main changes are as follows. --- Increase the impact of the neutral bus capacitor requirements (see Chapter 1); --- Installation site will be expanded to include indoor products (see Chapter 1); The test voltage --- internal fuses and discharge test was modified by 1.2UN 1.5UN (see section 5.10,2007 version 2.10); --- The test voltage of the DC thermal stability test by 1.3Ud modify 1.2Ud (see section 5.11.2,2007 version 2.11.2); --- Reversing the polarity inversion test time from 2min modified to 10ms; the capacitor should be able to withstand three times to change the voltage polarity reversal Capacitor should be able to withstand three cycles voltage polarity reversal (see section 5.16,2007 version 2.16); --- Remove the seismic test a special pilot project (see section 5.2.3,2007 version 2.2.4). The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Standardization Technical Committee on Power capacitor (SAC/TC45) centralized. This standard is drafted by. Xi'an High Voltage Apparatus Research Institute Co., Ltd. Participated in the drafting of this standard. Xi'an Electric Power Capacitor Co., Ltd., Guilin Power Capacitor Co., Ltd., the Hass Source Power Capacitor Co., Ltd., Zhejiang Electric Power Test & Research Institute, Beijing Electrical Machinery Industry Technical and Economic Research Institute, China Southern Power Grid SCIENCE RESEARCH Study hospital limited liability company, New Northeast Electric (Jinzhou) Power Capacitor Co., Ltd. Shaanxi capacity of Electric Capacitor Co., Ltd., Shenzhen City And Power Technology Co., Cooper Shanghai Power Capacitor Co., Ltd. Shenzhen Wo, Central China Electrical Technology Co., Ltd. Xi'an ABB electric Limited power capacitors. The main drafters of this standard. Liu Jing, room sworn, Tian Enwen, Cong Liang, Jia Hua, Zhang Jianping, Liang Weihong, Guo Liping, Hu Chong, Yanhuan Ling, Huang Ying, Chen Wenqi, Fan Ying, Lin Yue Wang, Ge Xing Ru, Wang Yao, Wang Linghai, Lu Tao, Guo Yinxing, Zhang Aili, HE tide, Zhang Jianfu, Wang Yu Jing, Li Huaiyu. This standard replaces the standards previously issued as follows. --- GB/T 20993-2007. HVDC DC filter capacitor Shock and neutral bus capacitor

1 Scope

This standard specifies the impact of HVDC DC bus capacitors filter capacitors and neutral terms and definitions, usage conditions Basic requirements parts, quality requirements and testing, and other aspects of design and construction. This standard applies to high-voltage direct current transmission (HVDC) converter station DC side, installed in the indoor or outdoor types of capacitors. a) DC filter capacitors. C1 installed in the DC filter capacitors and capacitor unit; b) Impact neutral bus capacitors. capacitors and capacitor mounted unit converter station bus and the DC side of the neutral ground. This standard does not apply to the DC filter capacitors C2 and C3 and the capacitor unit requirements see GB/T 20994.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 2900.16 Electrotechnical terminology - Power capacitors [GB/T 2900.16-1996, neqIEC 60050 (436).1990] GB/T 11024.1 nominal voltage above 1000V ac power systems in parallel capacitors - Part 1. General (GB/T 11024.1 -2010, IEC 60871-1.2005, MOD) GB/T 11024.4 rated voltage above 1kV shunt capacitors for ac power systems - Part 4. Internal fuses (GB/T 11024.4 -2001, Idt IEC 60871-4.1996) GB/T 13498 HVDC term (GB/T 13498-2007, IEC 60633.1998, IDT) GB/T 16927.1 High-voltage test techniques - Part 1. General definitions and test requirements (GB/T 16927.1-2011, IEC 60060-1.2010, MOD) GB/T 20994 HVDC systems with parallel capacitors and the AC filter capacitor 3 Terms, definitions and abbreviations 3.1 Terms and Definitions GB/T 2900.16 define the following terms and definitions apply to this document. 3.1.1 Capacitor element (or elements) capacitorelement (orelement) A dielectric and two electrodes separated by its members posed. [GB/T 11024.1-2010, Definition 3.1] 3.1.2 Capacitor unit (or units) capacitorunit (orunit) By one or more capacitor elements assembled in the same housing and a lead terminal of the assembly. [GB/T 11024.1-2010, the definition 3.2] ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20993-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20993-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20993-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20993-2012_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 20993-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20993-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.