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GB/T 42009-2022High voltage alternating-current circuit-breakers for filter banks (English PDF)

滤波器用高压交流断路器

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 14, 2022

Implementation date

May 1, 2023

Scope

GB/T 42009-2022 is the English-translated version of 滤波器用高压交流断路器.

GB/T 42009-2022 is the Chinese national standard for the high-voltage AC circuit-breakers that switch the AC filter banks of a converter station.

It gives their conditions of use, their ratings - including rated short-circuit breaking current, transient recovery voltage, short-circuit making current and rated capacitive switching current - the design and construction requirements, the type and factory tests, from capacitive current switching and internal arc fault to noise, phase-selection closing and seismic performance, a selection guide and the rules for transport, storage, installation, operation and maintenance.

It covers outdoor AC filter circuit-breakers at 50 Hz with a rated voltage of 252 kV and above. Its introduction states that the document is used together with GB/T 11022-2020, whose clause numbering it follows, numbering added clauses from 101. Issued on 14 October 2022, it has applied since 1 May 2023.

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Document preview — GB/T 42009-2022

National Standard of the People's Republic of China

ICS: 29.130.10
Classification: K 43

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

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Normal and special conditions of use
4.1 Overview
4.2 Normal use conditions
4.3 Special Conditions of Use
5 Rating
5.1 Overview
5.2 Rated voltage (Ur)
5.3 Rated insulation level
5.4 Rated frequency (fr)
5.5 Rated continuous current (Ir)
5.6 Rated short-time withstand current (Ik)
5.7 Rated peak withstand current (Ip)
5.8 Rated short-circuit duration (tk)
5.9 Rated supply voltage (Ua) of auxiliary and control circuits
5.10 Rated frequency of auxiliary and control circuit supply voltage
5.11 Rated charging pressure/level 4 for insulation and/or switching
5.101 Rated short-circuit breaking current (Isc)
5.102 Transient recovery voltage related to rated short-circuit breaking current
5.103 Rated short-circuit making current
5.104 Rated operating sequence
5.105 Rated capacitive switching current
5.106 Rated time parameter
5.107 Number of mechanical operations
5.108 Rated closing window of circuit breaker (where applicable)
5.109 Rated opening window of circuit breaker (where applicable)
6 Design and Structure
6.1 Requirements for liquids in circuit breakers
6.2 Requirements for gases in circuit breakers
6.3 Grounding of circuit breakers
6.4 Auxiliary and control equipment
6.5 Power closing
6.6 Energy storage closing
6.7 Manpower-independent operation
6.8 Operation of the trip unit
6.9 Low pressure and high pressure lockout
6.10 Nameplate
6.11 Interlock
6.12 Position indication
6.13 Degree of protection of the enclosure
6.14 Creepage distances
6.15 Sealing of gases
6.16 Sealing of liquids
6.17 Flammability
6.18 Electromagnetic compatibility (EMC)
6.19 Corrosion
6.101 Interpolar synchronicity requirements for single-make and single-point operations
6.102 General requirements for operation
6.103 Pressure limits for operating fluids
6.104 Select relevant requirements (if applicable)
6.105 Phase-selective breaking requirements (if applicable)
6.106 Secondary Communication Protocol
6.107 Fractured shunt capacitors (where applicable)
6.108 Closing resistance (if applicable)
6.109 Noise level
6.110 Other requirements
7 Type test
7.1 General
7.2 Insulation test
7.3 Radio interference voltage (riv) test
7.4 Measurement of main circuit resistance
7.5 Temperature rise test
7.6 Short-time withstand current and peak withstand current test
7.7 Verification of the degree of protection
7.8 Tightness test
7.9 Electromagnetic compatibility (EMC) test
7.10 Additional tests for auxiliary and control circuits
7.101 Mechanical and environmental tests
7.102 Requirements for making and breaking tests
7.103 Test circuit for short-circuit making and breaking tests
7.104 Short-circuit test parameters
7.105 Short-circuit test procedure
7.106 Basic short-circuit test method
7.107 Critical current test
7.108 Single-phase earth fault test
7.109 Capacitive current switching test
7.110 Test under internal arc fault conditions
7.111 Closing resistance thermal capacity test
7.112 Noise test
7.113 Determination of the rate of decrease in dielectric strength
7.114 Determination of rate of rise in dielectric strength
7.115 Phase selection closing test
7.116 Seismic performance test
8 Factory test
8.1 Insulation test of main circuit
8.2 Tests of auxiliary and control circuits
8.3 Measurement of main circuit resistance
8.4 Tightness test
8.5 Design and Visual Inspection
8.101 Mechanical operation test
8.102 Determination of humidity in SF6 gas
8.103 Pressure test of enclosure (where applicable)
8.104 No-load operation test with phase selection controller (if applicable)
9 Selection guide for circuit breaker operation
10 Information to accompany enquiries, tenders and orders
11 Rules for transport, storage, installation, operation and maintenance
11.1 Overview
11.101 Handover mechanical test
11.102 Handover withstand voltage test
11.103 Select compatibility test (if applicable)
11.104 Select compatibility breaking test (where applicable)
12 Security
13 Environmental impact of products
Appendix A (Informative) Influence of the difference in the input mode of the closing resistor on the test
Appendix B (Informative) Recommended Test Procedure for Seismic Performance Test
Reference

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

Introduction

The high-voltage AC circuit breaker used in the filter is an important equipment in the high-voltage DC transmission system. However, the special operating conditions of the AC filter are Requirements for the insulation, mechanical, closing and breaking performance of circuit breakers are different from those of conventional high-voltage AC circuit breakers. In order to make high pressure and ultra, The design, manufacture and test of high-voltage AC circuit breakers for filters in UHV DC transmission systems are complied with, and this document is specially formulated. this document Considering different use environments and engineering application conditions, the high-voltage AC circuit breaker used in the filter has a higher safe operating margin and can be used. dependability.

The technical requirements proposed in this document are based on the filters of DC transmission systems with voltage levels of ±500kV, ±800kV, and ±1100kV.

The scientific research conclusions of the insulation, mechanical, closing and breaking performance of high-voltage AC circuit breakers are summarized in the summary of the rated voltage of 252kV in the DC converter station.

Based on the technical parameters and test methods of circuit breakers used in AC filter groups and above, combined with the current national and industry standards for high-voltage AC circuit breakers.

It is compiled with reference to the design, operation and test experience of filter circuit breakers at home and abroad.

This document is used together with GB/T 11022. In order to simplify the expression of the same requirements, the chapter numbers of this document are the same as those of GB/T 11022. same. The numbering begins with 101 for new clauses supplemented under the same citation heading. High voltage AC circuit breaker for filter

1 Scope

This document specifies the outdoor AC filters (including frequency 50Hz, rated voltage 252kV and above) in the converter station Conditions of use, ratings, design and construction, testing, selection guidelines, transportation, storage, installation, operation and maintenance of circuit breakers for shunt capacitors) and other requirements.

This document is mainly aimed at circuit breakers for AC filter groups that are frequently operated in engineering.

Note 1. The circuit breakers for filter groups are usually only used to break several parallel filter group circuits, and do not need to withstand the closing inrush current in normal operating procedures.

Moreover, the frequency of operation is much lower than that of circuit breakers used in filter groups. Refer to the C1-level single capacitor bank switching test in GB/T 1984-2014. related requirements.

Note 2. In order to limit the closing inrush current, the high-voltage AC circuit breaker for the filter usually adopts the closing resistor or the phase selection control device.

Note 3. If the circuit breaker that has passed the GB/T 1984-2014 type test is used as the high-voltage AC circuit breaker for the filter, the use conditions specified in this document Special requirements such as parts, design and structure, and the content of Chapter 7 are necessary supplements.

Note 4. High-voltage AC circuit breakers for filters usually have strong capacitor bank current breaking capacity and certain short-circuit current breaking capacity, and do not require near-zone faults. and out-of-step fault breaking and automatic reclosing capabilities.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 1984-2014 High Voltage AC Circuit Breaker

GB/T 4787.1-2021 Voltage equalizing capacitors for high-voltage AC circuit breakers - Part 1: General

GB/T 7674-2020 Gas-insulated metal-enclosed switchgear with rated voltage of 72.5kV and above

GB/T 11022-2020 Common technical requirements for high-voltage AC switchgear and control equipment standards

GB/T 13540-2009 Seismic requirements for high-voltage switchgear and control equipment

GB/T 16927.1-2011 High Voltage Test Technology Part 1: General Definition and Test Requirements

GB/T 30846-2014 High-voltage AC circuit breakers with predetermined pole-to-pole different periods of operation

GB/T 33981-2017 Standard procedure for sound pressure level measurement of high-voltage AC circuit breakers

GB 50150-2016 Electrical Equipment Handover Test Standard for Electrical Installation Installation Engineering

3 Terms and Definitions

GB/T 11022-2020, GB/T 1984-2014, GB/T 30846-2014 and the following terms and definitions apply to this document.

3.1 High voltage AC circuit breaker for filter

In the HVDC transmission system, under the specified conditions of use, it can carry and frequently open and close the AC filter circuit and the reactive power compensation capacitor.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 27 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 28819-2023|NB/T 11077-2023|GB/T 41996-2022|GB/T 33346-2025|GB/Z 14048.24-2024|GB/T 10217-2021

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