• IEC 60071-5:2014

    Current The latest, up-to-date edition.

    Insulation co-ordination - Part 5: Procedures for high-voltage direct current (HVDC) converter stations

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French, Spanish, Castilian

    Published date:  24-10-2014

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 General
    2 Normative references
    3 Terms and definitions
    4 Symbols and abbreviations
    5 Typical HVDC converter station schemes
    6 Principles of insulation co-ordination
    7 Voltages and overvoltages in service
    8 Arrester characteristics and stresses
    9 Design procedure of insulation co-ordination
    10 Study tools and system modelling
    11 Creepage distances
    12 Clearances in air
    Annex A (informative) - Example of insulation co-ordination
            for conventional HVDC converters
    Annex B (informative) - Example of insulation co-ordination
            for capacitor commutated converters (CCC) and
            controlled series capacitor converters (CSCC)
    Annex C (informative) - Considerations for insulation
            co-ordination of some special converter configurations
    Annex D (informative) - Typical arrester characteristics
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60071-5:2014 provides guidance on the procedures for insulation co-ordination of high-voltage direct current (HVDC) converter stations, without prescribing standardized insulation levels. This standard applies only for HVDC applications in high-voltage a.c. power systems and not for industrial conversion equipment. Principles and guidance given are for insulation co-ordination purposes only. The requirements for human safety are not covered by this standard. This International Standard cancels and replaces IEC TS 60071-5 published in 2002. On the basis of technical experience gained since the Technical Specification was published, sufficient consensus has emerged for transformation of the Technical Specification into an International Standard. The technical content is essentially the same as that contained in the Technical Specification with amendments mainly for user convenience. The structure of the document has been changed to allow division and subdivision into complete integral parts to facilitate comprehension and ease of referencing. In addition to the high level revisions above, the following main technical changes have been made with respect to the previous edition:
    - arresters have been added to several locations to reflect some recent 800 kV HVDC scheme practice, along with their justifications, expected voltages, overvoltages and arrester stresses in service;
    - significant changes have been made in Clause 8 - all subclauses on the characteristics, schemes, stresses and specification of arresters have been consolidated into a single entity, Clause 8;
    - the implications of a smoothing reactor and of a neutral blocking filter located on the neutral bus (as on some recent 800 kV schemes), on coordination of arresters connected to the neutral end have been added;
    - possible use of sacrificial arresters on the neutral bus is introduced to cater for excessive arrester energy in the rather unlikely event of a particular rare fault;
    - all subclauses dealing with study tools and modelling details have been consolidated into Clause 10;
    - creepage distances and clearances have been consolidated into Clauses 11 and 12, respectively, with more details added.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes IEC TS 60071-5. Stability date: 2020. (10/2014)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    PD IEC/TR 62001-1:2016 (published 2016-05) High-voltage direct current (HVDC) systems. Guidance to the specification and design evaluation of AC filters Overview
    EN IEC/IEEE 65700 : 2018 BUSHINGS FOR DC APPLICATION (IEC/IEEE 65700-19-03:2014)
    S.R. CLC/TR 50609:2014 TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS
    BS PD CLC/TR 50609 : 2014 TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS
    IEC TR 62001-1:2016 High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of AC filters - Part 1: Overview
    PD IEC/TR 62001-4:2016 High-voltage direct current (HVDC) systems. Guidance to the specification and design evaluation of AC filters Equipment
    IEC TS 63014-1:2018 High voltage direct current (HVDC) power transmission - System requirements for DC-side equipment - Part 1: Using line-commutated converters
    IEEE 1277 : 2010 GENERAL REQUIREMENTS AND TEST CODE FOR DRY-TYPE AND OIL-IMMERSED SMOOTHING REACTORS FOR DC POWER TRANSMISSION
    CLC/TR 50609 : 2014 TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS
    I.S. EN IEC/IEEE 65700:2018 BUSHINGS FOR DC APPLICATION
    CEI CLC/TR 50609 : 2014 TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS
    IEC TR 62543:2011+AMD1:2013 CSV High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC)
    IEC TR 62001-4:2016 High-voltage direct current (HVDC) systems - Guidance to the specification and design evaluation of AC filters - Part 4: Equipment
    IEC TS 61936-2:2015 Power installations exceeding 1 kV a.c. and 1,5 kV d.c. - Part 2: d.c.
    PD IEC/TS 61936-2:2015 (published 2015-08) Power installations exceeding 1 kV a.c. and 1,5 kV d.c. d.c.

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60099-4:2014 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
    IEC TS 60815-2:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 2: Ceramic and glass insulators for a.c. systems
    IEC 60505:2011 Evaluation and qualification of electrical insulation systems
    IEC TR 60919-2:2008+AMD1:2015 CSV Performance of high-voltage direct current (HVDC) systems withline-commutated converters - Part 2: Faults and switching
    IEC 60700-1:2015 Thyristor valves for high voltage direct current (HVDC) power transmission - Part 1: Electrical testing
    IEC 60721-3-0:1984+AMD1:1987 CSV Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Introduction
    IEC 60099-5:2013 Surge arresters - Part 5: Selection and application recommendations
    IEC 60633:1998+AMD1:2009+AMD2:2015 CSV Terminology for high-voltage direct current (HVDC) transmission
    IEC 60071-2:1996 Insulation co-ordination - Part 2: Application guide
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
    IEC TS 60815-1:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles
    IEC TS 60815-3:2008 Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 3: Polymer insulators for a.c. systems
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