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Dran-View 6 User Guide

6.1.1. Reading COMTRADE files

COMTRADE

Enterprise

Edition Only

When opening a COMTRADE (.CFG) file, the COMTRADE Text Import

Wizard will help you define the data.

COMTRADE is commonly used to store waveshapes from relay protection

systems.

A COMTRADE “file” is actually a pair of two files (.CFG and .DAT). The

leading file name must be identical for the two files and both must reside in the

same folder.

The flexibility offered in the COMTRADE file format generates some problems

for Dran-View and the user since Dran-View wants to have all data thoroughly

defined. Once you have gone through the import wizard, the setup you have

made will be stored for future use. In the future, when a COMTRADE file

contains a channel with the same name as you have previously defined, it will

suggest that particular setup. When setting up the grid, you should adjust the

combo boxes left to right, because adjustments may be made on any settings to

the right of the one you are modifying on the fly.

The options in the grid are derived from the specification of PQDIF (IEEE1159-

3), which is the way Dran-View internally defines channels when reading an

instrument file.

The first column contains a checkbox. If this checkbox is disabled, the data will

not be imported.

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Dranetz Guide Guía de usuario Pagina 31