Free COMCALC PRO - IEEE/IEC Comtrade file ANALYSIS Software
  1. Download and Install (FULL FEATURES @ no charge - click here) (File size < 15MB)

    Version 3.9.3 = 1 Feb 2020
        with IEEE/IEC Comtrade ASCII and BINARY (and variants 1991, 1999, 2011, 2013, 2014, binary32, float32 etc) from all OEM types,
                                                            including files with multiple sampling frequencies,
                                                            including auto-correct for incorrectly formatted files.


    DID YOU KNOW: Comcalc Pro has been and always will be free (no charge for full analysis/viewing features) and includes:
                                           * User-defined mathematical expressions and plots (including filters, symmetrical components, harmonics etc)
                                           * Import and view multiple files simultaneously (merge, tile, timeline etc).
                                           * Editing of Comtrade file structure and sampled values.
                                           * Protection relay measurement and characteristic modeling and behavior analysis.
                                           * Search through recording for user-defined criteria and extract/display relevant information etc.


    Recommended minimum requirements:
                                                                                       Windows XP/7/8/8.1/10
                                                                                       Display/Screen size = 1280 x 768

    Development in progress:
       * View user-defined calculated values on viewing display (View Wizard).
       * Include built-in example protection relay measurements and models (user-defined), previously created by users using Comcalc Pro capabilities.
       * Import any text file.

    Latest Enhancements:
       * Overall quality and print preview speed enhanced
      
    * Expression calculation speed (e.g. necessary expressions automatically re-calculated if referenced without apostrophies, i.e. A:=DFT1, B:='A', C:=A)
       * Full features automatically available without registration @ no charge (previously registration was required @ no charge)
       * Added more expression examples (e.g. Load expressions, variables, complex, functions, files and filters, program settings)
       * Enhanced error checking
      
    * Enhanced loading and saving of settings, colors and lists (plot/data wizard colors and lists, general, etc)
       * Multi-file import limited to 10 simultaneous views
      
    * Digsilent, ABB, Micom and SEL synchrophasor / traveling wave capture import enhancements

    Latest Fixes (over several versions period):
       * Defaul Fundamental Frequency filter (DFF) returned zero values
       * Multi-file import and plot/data wizard bug fixes
      
    * Timeline and Vertical pile view bug fixes
       * Print Preview
       *  Fixed specific expression errors (structure related and not value related)
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                    Please contact if you do perhaps encounter a False Positive (we follow-up and work with Anti-virus vendors do resolve False Positives).

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Optional: Installation ID

-A- -B- -C-

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