This section describes all the input and output files of ASPEN OneLiner. The input data files are these:
• Binary data files with .OLR extension. These are binary files that contain the system parameters as well as graphical and relay information. You can read in an OLR file with the File | Open Binary Data File command. OLR files are designed to be both forward and backward compatible.
• XML-formatted data files with .OLX and .ADX extensions. The OLX data file is a XML formatted text file that is designed to store all the parameters of an OneLiner case: power network components, protective devices, modeling parameters and other details. The ADX data file is also a XML formatted text file that is designed to store changes in OneLiner network. Both OLX and ADX files share a common XML scheme. The OLX data format, and the ADX change file format, are designed to be compatible with the CIM standards (IEC 61968, IEC 61970) and are intended a medium of exchange between ASPEN OneLiner/Power Flow and other programs model data management systems based on the CIM standards. The text data file format is described in Section 11.
• Text data files with .DXT extension. These are text files that contain the network data. Most commonly, text data files came from one of the many data conversion programs. Text data files can be imported into the program with the File | Open Text Data File command in the Main Window and saved as OneLiner binary data files. OneLiner can also add the contents of a text data file to an existing binary data file with the File | Add Network command in the Main Window. The text data file format is described in Section 9. We plan to stop supporting DXT files at the end of 2024. Please see Section 9.1 for details.
• Relay data files with .RAT extension. These are text files with relay data created by the Relay | Export Relay command in the Main Window. Relay data files can be imported into OneLiner using the Relay | Import Relay command. The relay data format is described in Section 10.
• Change files with .CHF or .ANA extension. This is one of the outputs of the ASPEN Case Comparison Program when you compare two data files. Change file contains commands that will make the network and relay data of one of the files to be the same as the other. The .CHF change file format is very similar to that described in Section 9 and 10. The .ANA change file is compatible with ANAFAS software, a short circuit program used by Brazilian utilities. See APPENDIX F: CASE COMPARISON PROGRAM for more information.
• Overcurrent Relay Curve Files *.RLY. OneLiner reads these files in the Library Directory to get the curve parameters for overcurrent relays, fuses, reclosers and custom damage curves. You can use Overcurrent Relay Editor to edit the existing curves and create new curves. The Library Path used by OneLiner is stored in the Window registry under "LibraryPath=" entry in the [OneLiner] section. You can specify the location of the Library Directory by running the OneLiner/Power Flow Configuration Program, CFG1LPF.EXE.
Note: The curves in the relay libraries were created by users of OneLiner. ASPEN collects the relay curves periodically and distributes them to all the users. ASPEN has not verified the correctness of the relay curves. It is important for users to check these curves against the manufacturers' specifications before applying them.
• Distance Relay Library File ASPEN.DRL (or other names you specified). OneLiner reads this file in the Library Directory to get the type names, the method name and parameter list for distance relays. (Manufacture-specific distance relay models are not stored in this file.) You can use the Distance Relay Editor to edit the existing relay types and to create new types. The full path name of the distance relay library referenced by OneLiner is stored in the Window registry under "DSlibrary=" entry in the [OneLiner] section. You can specify the name of the distance relay library by running the OneLiner/Power Flow Configuration Program, CFG1LPF.EXE.
Note: It is important for users to check the distance relay models against the manufacturers' specifications before applying them.
• Lines Table Files with .LTB extension. The Line Table File contains electrical parameters of various types of lines and cables on a per unit-length basis. The program reads this file in the Library Directory when it begins execution. The full path name of the line table file used by OneLiner is stored in the Window registry under "LineTable=" entry in the [OneLiner] section. You can specify the name of the line table file by running the OneLiner/Power Flow Configuration Program, CFG1LPF.EXE.
• Previous Curve Collection Files with .PCC extension. These are binary files created by OneLiner within the Curve Collection dialog box. When you recall a previous curve collection, the program displays the relay curves, damage curves, annotation, pictures and time-difference sliders, and shapes in the exact position as before.
• PowerScript files with .BAS extension. These are text files containing programs written in the Basic programming language. You can create a script file with the Script Editor in OneLiner or with any text editor.
OneLiner generates the following files:
• Output files with .TXT and .CSV extension. These are text files that contain the short circuit solutions in the traditional text form. The output files are generated when you invoke the Faults | Solution Report, Faults | Bus Fault Summary, Faults | Line-End and Line-Out Summary and Faults | Batch Fault Simulation commands of the Main Window. A description of the output file is available in Section 7.
• Report files with .TXT extension. These are text files that contain a report of the network or relay data in the traditional text form. The report files are generated when you invoke the following commands:
1. The Network | Report command in the Main Window,
2. The Relay | Report command in the Main Window,
3. The Menu | Save Selected Text command in the TTY Window.
• Temporary files with .TMP extension and names that begin with ~1L. While it is running, OneLiner creates a temporary file in the root directory or in the temporary directory (usually c:\windows\temp). OneLiner deletes the temporary files automatically at the end of each session. In the event the program bombs out before the end of a session, the temporary files will be left behind on the disk. If you see any of the temporary files on the directory when OneLiner is not running, you can reclaim the disk space by deleting them. DO NOT delete these files while OneLiner is running.
• Text Data Files with .DXT extension. Text data files contain system parameters but no graphical or relay information. You can generate a text data file with the File | Export Network command.
• Relay data files with .RAT extension. These are text files that contain the relay data. Relay data files can be exported using the File | Export Relay command. The relay data format is described in Section 10.
• Previous Curve Collection Files with .PCC extension. These are binary files created by OneLiner within Curve Collection dialog box. This file stores a series of overcurrent relay collections for later recalling.
• Backup files with .BAK extension. When you update an existing binary data file using the File | Save or File | Save As commands, OneLiner saves the original data file under the .BAK extension. This file serves as a backup in case you want to revert back to the original file.
• Windows metafiles with .WMF extension. When you execute the File | Export One-Line Diagram command, OneLiner creates a Window Metafile or Enhanced Window Metafile with extensions .WMF or .EMF that corresponds to the current state of the one-line diagram. The metafiles are vector-graphic files that can be imported to other Windows programs.