A “previous curve collection” contains the following information:
•Time-versus-current characteristics of overcurrent relays, fuses, reclosers, damage curves as well text and graphic annotation that were displayed on the OC Curves Window.
•Impedance characteristics of distance relays, remote line impedances, load region as well text and graphic annotation that were displayed on the DS Relays Window.
The program lets you store one or more curve collections in binary files called Previous Curves Collection (PCC) files. The Open Previous Curve Collection command in the Main Window lets you recall, view or edit a curve collection within a PCC file.
TO VIEW A PREVIOUS CURVE COLLECTION:
1. Select the Relay | Open Previous Curve Collection command.
If a PCC file has not been opened, a dialog box will appear asking you the name of the PCC file that you wish to open.
Use the controls in the standard file dialog box to specify the name of the PCC file. Press Open.
The file dialog box will disappear, and the curve collection information dialog box will appear.
This dialog box shows the path of the PCC file and lists all the curve collections that it contains. Each entry in the list box shows the name of the collection as well as the name of the devices it contains.
2. Select a curve collection and press Show.
The Curve Window or the Distance Relays Window will appear showing graphically all of the objects in the collection. You can perform various operations on this window, such as adding, removing and editing the curves/characteristics.
OneLiner does not store the fault solutions in the PCC file. Once you have open a collection, however, you can use commands in the “Show | Relay Operations” commands in the Curve Window or Distance Relays Window to display the faults you simulated earlier in the session.
TO OPEN ANOTHER PCC FILE OR SAVE AN OPENED PCC FILES:
1. Select the Relay | Open Previous Curve Collection command.
The curve collection information dialog box will appear.
Press "Open" and enter the appropriate information in the standard file dialog box to open a new PCC file. If the present PCC file has been changed, another dialog box will appear asking you whether the change should be saved.
Press "Save" to save the curve collections to the PCC file you open previously.
Press "Save as" and enter the appropriate information in the standard file dialog box to save the curve collections to a PCC file of a different name.
Press "Done" to close the dialog box.
TO RENAME OR REMOVE A PREVIOUS CURVE COLLECTION:
1. Select the Relay | Open Previous Curve Collection command.
The curve collection information dialog box will appear..
Select a curve collection and:
Press "Remove" to remove the curve collection.
Press "Rename" and enter the appropriate information as prompted to rename a curve collection.
Press “Done: to close the dialog box.
Main Window
RELAY MENU