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GB/T 20993-2012DC filter capacitors and neutral bus surge capacitors for HVDC transmission system (English PDF)

高压直流输电系统用直流滤波电容器及中性母线冲击电容器

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

June 29, 2012

Implementation date

November 1, 2012

Scope

GB/T 20993-2012 is the English-translated version of 高压直流输电系统用直流滤波电容器及中性母线冲击电容器.

GB/T 20993-2012 is the Chinese standard "DC filter capacitors and neutral bus surge capacitors for HVDC transmission system".

Its scope clause reads: 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. Its clauses include terms, definitions and abbreviations.

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Document preview — GB/T 20993-2012

National Standard of the People's Republic of China

ICS: 31.060.70
Classification: K 42
Replacing: GB/T 20993-2007

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms, Definitions and Abbreviations
4 Conditions
5 Quality requirements and testing
6 design and structural requirements
7 15 insulation level
8 Overload
9 Safety requirements
10 16 Flag
11 for installation and operation are
Appendix A (informative) HVDC systems commonly filter DC wiring diagram Example
Annex B (informative) formula capacitor discharge time of
Annex C (informative) HVDC converter stations and neutral DC bus filter capacitor mounting arrangement schematic impact
References

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] […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.

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Editions of GB/T 20993

Edition	Title	Revision	Status
GB/T 20993-2012	DC filter capacitors and neutral bus surge capacitors for HVDC transmission system	current edition	Current
GB/T 20993-2007	DC filter capacitors and neutral bus surge capacitors for HVDC transmission system	previous edition	Superseded

This page sells the current edition, GB/T 20993-2012. Earlier editions are listed for reference only.

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