3.52
SEL-400 Series Relays Instruction Manual Date Code 20171006
Basic Relay Operations
Reading Oscillograms, Event Reports, and SER
For more information on the event history, see Event History on page 9.27.
Viewing High-Resolution Oscillograms
Once you have successfully generated an event, you can view high-resolution
oscillograms and event report oscillograms about this event. When gathered from
a field-installed relay, this information helps you assess power system operating
conditions. In addition, when you first install the relay, this reporting information
helps you confirm that you have connected the relay correctly.
The relay provides high-resolution oscillography data in the binary COMTRADE
file format (IEEE/ANSI standard C37.111-1999). File transfer is the only mecha-
nism for retrieving high-resolution COMTRADE data from the relay.
The SEL-5601
SYNCHROWAVE Event is a program you can use to view COM-
TRADE data. Many third-party software suppliers can provide you with pro-
grams to display and manipulate COMTRADE files.
Retrieving High-Resolution COMTRADE Data in the Terminal
The relay recorded the event triggered in Generating an Event on page 3.49. The
procedure in the following steps shows you how to retrieve the high-resolution
raw oscillography data for this event.
Perform the steps listed in Generating an Event on page 3.49 before executing
the instructions in this example. For this procedure, you must use a communica-
tions terminal emulation computer program capable of file transfers.
If you need help finding a terminal emulation program, contact the SEL factory
or your local Technical Service Center.
Step 1. Prepare to monitor the relay at Access Level 1.
a. Using a communications terminal, type ACC <Enter>.
b. Type the Access Level 1 password and press <Enter>.
You will see the Access Level 1 => prompt.
=>HIS <Enter>
Relay 1 Date: 03/03/2015 Time: 17:27:44.140
Station A Serial Number: 0000000000
# DATE TIME EVENT LOCAT CURR GRP TARGETS
10024 03/03/2015 08:33:29.201 TRIP $$$$.$$ 0 1
10023 03/02/2015 15:41:35.777 ER $$$$.$$ 0 1
10022 03/02/2015 15:41:35.227 ER $$$$.$$ 0 1
10021 03/02/2015 15:41:34.577 ER $$$$.$$ 0 1
10020 03/02/2015 15:41:34.152 ER $$$$.$$ 0 1
10019 03/02/2015 15:41:32.702 ER $$$$.$$ 0 1
10018 02/24/2015 15:22:19.496 TRIG $$$$.$$ 1 3
10017 02/24/2015 15:22:17.705 TRIG $$$$.$$ 1 3
10016 02/23/2015 17:42:56.581 TRIG $$$$.$$ 1 3
10015 02/20/2015 19:23:41.369 BCG 0.02 3442 3
10014 02/20/2015 17:14:40.056 CA T 7.28 2449 3 TIME A_FAULT C_FAULT
=>
Figure 3.43 Sample HIS Command Output in the Terminal
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