3.12
SEL-751 Relay Instruction Manual Date Code 20170927
PC Software
Event Analysis
View Event History
You can retrieve event files stored in the relay and transfer these files to a
computer. For information on the types of event files and data capture, see
Section 10: Analyzing Events. To download event files from the device, click
Tools > Events > Get Event Files. The Event History dialog box appears, as
shown in Figure 3.10.
The SEL-751 is capable of capturing three types of events (4 samples/cycle
filtered, 32 samples/cycle raw, and high-impedance fault). These three types
of events can be captured in either the compressed ASCII (.cev) or
COMTRADE format. QuickSet allows for downloading of the .cev events.
For information on how to download COMTRADE events from the relay see
Section 10: Analyzing Events. The drop-down menu under Event Type allows
the selection of which type of event to retrieve using QuickSet.
Get Event
Highlight the event you want to view (e.g., Event 3 in Figure 3.10), select the
event type with the Options Event type function (4 samples or 32 samples),
and click the Get Selected Event button. When downloading is complete,
QuickSet queries whether to save the file on your computer, as shown in
Figure 3.11.
Figure 3.11 Saving the Retrieved Event
Enter a suitable name in the File name text box, and select the appropriate
location where QuickSet should save the event record.
View Event Files
To view the saved events, you need the SEL-5601 software package. Use the
View Event Files function from the Tools > Events menu to select the event
you want to view (QuickSet remembers the location where you stored the
previous event record). Use View Combined Event Files to simultaneously
view as many as three separate events.
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