DADiSP Software
Module - Comtrade 2.0
 DADiSP/Comtrade
is a menu-driven module that extends DADiSP's importing functionality,
allowing users to import COMTRADE (IEEE Standard Common Format for Transient
Data Exchange) files.
Designed specifically for the power utility indiustry, DADiSP/Comtrade
imports COMTRADE data files by converting information in the COMTRADE
configuration file into a fully qualified DADiSP header file. This header
is automatically processed by DADiSP's Import Facility, providing a complete
import of data into a DADiSP format.
Key Features
- Simple User Interface
- Fast and Direct COMTRADE File Import
- Automatic Header Conversion Preserves Important Data Properties
DADiSP / Comtrade New Features
DADiSP/Comtrade Version 2.0 has been redesigned with an updated and
simplified user interface. Important file summary information is displayed
and the complete CFG header can be previewed to provide a quick overview
of the file contents. Individual channels can be selected and imported
channels are optionally loaded into one or more Windows for immediate
display.
Both ASCII and binary COMTRADE files are supported. The original or
revised COMTRADE specification is automatically detected and processed.
Comtrade 2.0 New Features Summary
* Updated and Streamlined User Interface
* Individual Channel Selection for Import
* Optional Automatic Display of Imported Channels
* Support for Binary Files
* Support for Revised COMTRADE Specification
 COMTRADE Data File Import Module
COMTRADE (Common Format for Transient Data) is an important IEEE standard
(C37.111) developed explicitly for the power industry. The standard defines
a common format for data files used for the interchange of various types
of fault, test or simulation data for electrical power systems. The IEEE
standard also describes the sources of transient data such as digital
protective relays, digital fault recorders and transient simulation programs
and discusses the sampling rates, filters, and sample rate conversions
for the transient data being exchanged. The C37.111-1999 standard establishes
that the following files are necessary for the data exchange: header
file (.hdr), configuration file (.cfg) and data file (.dat).
COMTRADE
Header Conversion
DADiSP/Comtrade imports COMTRADE data files by automatically converting
information in the COMTRADE configuration file (*.cfg) into a DADiSP
header file. The header is processed by DADiSP's Import Facility to fully
import COMTRADE data into a DADiSP series.
COMTRADE ASCII and Binary Formats
Both ASCII and binary COMTRADE file formats are supported. The original
or revised file specification is automatically detected and fully processed.
PTR (Potential Transformer Ratio) and CTR (Current Transformer Ratio)
scaling factors are applied to the appropriate analog channels.
Simple
Menu Interface
DADiSP/Comtrade runs from the DADiSP worksheet and is accessed by a
press of a button. The COMTRADE user interface displays important file
information and allows for individual channel selection. COMTRADE time
and count channels are optionally supported. Once the COMTRADE parameters
have been defined, the COMTRADE data is imported into DADiSP using the
specific data acquisition settings provided in the configuration file.
The imported channels can be plotted for immediate display.
Full Analysis
System
DADiSP provides a complete analysis, display, and processing environment
using COMTRADE data. The integration of DADiSP/Comtrade into DADiSP makes
it easy to automate data import and analysis applications completely
through SPL (Series Processing Language), macros, and command files.
Requirements
DADiSP/Comtrade requires DADiSP 6.0 B18 or higher. Contact us for information
about updating your current version of DADiSP.
COMTRADE Functions
DADiSP/Comtrade is a fully menu driven module. However, the following
functions can be used on a standalone basis to read COMTRADE files.
| COMTRADE Functions |
| cfgimport |
Import a COMTRADE file into a dataset. |
| cfg2head |
Convert a COMTRADE header into a DADiSP header |
| 
