• IEC 60255-127:2010

    Current The latest, up-to-date edition.

    Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection

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

    Language(s):  English - French

    Published date:  27-04-2010

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    1 Scope and object
    2 Normative references
    3 Terms and definitions
    4 Specification of the function
    5 Performance specification
    6 Functional test methodology
    7 Documentation requirements
    Annex A (informative) - Reset time determination for relays
                            with trip output only
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60255-127:2010 specifies minimum requirements for over/under voltage relays. The standard includes specification of the protection function, measurement characteristics and time delay characteristics.

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

    Development Note Stability Date: 2018. (09/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current

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

    CEI EN 50438 : 2014 REQUIREMENTS FOR MICRO-GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH PUBLIC LOW-VOLTAGE DISTRIBUTION NETWORKS
    S.R. CLC/TS 50549-2:2015 REQUIREMENTS FOR GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH DISTRIBUTION NETWORKS - PART 2: CONNECTION TO A MV DISTRIBUTION NETWORK
    I.S. EN 50438:2013 REQUIREMENTS FOR MICRO-GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH PUBLIC LOW-VOLTAGE DISTRIBUTION NETWORKS
    BS EN 50438:2013 Requirements for micro-generating plants to be connected in parallel with public low-voltage distribution networks
    S.R. CLC/TS 50549-1:2015 REQUIREMENTS FOR GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH DISTRIBUTION NETWORKS - PART 1: CONNECTION TO A LV DISTRIBUTION NETWORK ABOVE 16 A
    PD IEC/TR 61869-100:2017 Instrument transformers Guidance for application of current transformers in power system protection
    CLC/TS 50549-2:2015 Requirements for generating plants to be connected in parallel with distribution networks - Part 2: Connection to a MV distribution network
    IEC TR 61869-100:2017 Instrument transformers - Part 100: Guidance for application of current transformers in power system protection
    CLC/TS 50549-1:2015 Requirements for generating plants to be connected in parallel with distribution networks - Part 1: Connection to a LV distribution network above 16 A
    EN 50438:2013 REQUIREMENTS FOR MICRO-GENERATING PLANTS TO BE CONNECTED IN PARALLEL WITH PUBLIC LOW-VOLTAGE DISTRIBUTION NETWORKS

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

    IEC 60050-447:2010 International Electrotechnical Vocabulary (IEV) - Part 447: Measuring relays
    IEC 61850-9-2:2011 Communication networks and systems for power utility automation - Part 9-2: Specific communication service mapping (SCSM) - Sampled values over ISO/IEC 8802-3
    IEC 60255-1:1967 Electrical relays - Part 1: Instantaneous all-or-nothing relays
    IEC 61850-7-4:2010 Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
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