I.S. EN 60255-24:2001

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

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.