• I.S. EN 60255-24:2001

    Current The latest, up-to-date edition.

    ELECTRICAL RELAYS - PART 24: COMMON FORMAT FOR TRANSIENT DATA EXCHANGE (COM-TRADE) FOR POWER SYSTEMS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2001

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    1 Scope and object
    2 Definitions
       2.1 data representation
       2.2 critical/non-critical
       2.3 primary/secondary ratios
       2.4 floating point notation
       2.5 categories of files
       2.6 methods of accessing data in files
       2.7 data separators, delimiters, field
           lengths, data minimum and maximum
           values
    3 COMTRADE files
       3.1 Header file (xxxxxxxx.HDR)
       3.2 Configuration file (xxxxxxxx.CFG)
       3.3 Data file (xxxxxxxx.DAT)
       3.4 Information file (xxxxxxxx.INF)
    4 Header files
       4.1 Content
       4.2 Filenames
       4.3 Format
    5 Configuration files
       5.1 Content
       5.2 Filenames
       5.3 Format
       5.4 Missing data in configuration files
       5.5 Configuration file layout
    6 Data files
       6.1 Content
       6.2 Data filenames
       6.3 ASCII data file format
       6.4 Example of an ASCII data sample
       6.5 Binary data files
       6.6 Example of binary data sample
    7 Information files
       7.1 Content
       7.2 Information file filenames
       7.3 Information file structure
       7.4 File characteristics
       7.5 Section headings
       7.6 Entry line 27
       7.7 Adding, modifying and deleting information 29
       7.8 Public section header and entry line definitions
       7.9 Public record information section
       7.10 Public event information definitions
       7.11 Public file description section
       7.12 Public analog channel section
       7.13 Public status channel section
       7.14 Sample .INF file
    Annex A (informative) Sources and exchange medium for
            transient data
          A.1 Digital fault recorders
          A.2 Analog tape recorders
          A.3 Digital protective relays
          A.4 Transient simulation programs
          A.5 Analog simulators
          A.6 Data exchange medium
    Annex B (informative) Data exchange sampling rates
          B.1 Introduction
          B.2 Sampling process structure
          B.3 Interpolation
    Annex C (informative) Sample file
    Annex D (informative) Sample program for sampling
            frequency conversion
    Annex E (informative) Sample applications of
            conversion factors
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes a format for files containing transient waveform and event data collected from power systems or power system models. Also applies to files stored on physical media such as digital hard drives and diskettes.

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    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current
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