3.49
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Basic Relay Operations
Reading Oscillograms, Event Reports, and SER
Generating an Event
To view high-resolution raw data oscillograms and event reports, you must gener-
ate a relay event. High-resolution oscillography and event reports use the same
event triggering methods. The relay uses multiple sources to initiate a data cap-
ture, including any of the following: Relay Word bit TRIP asserts, SEL
OGIC con-
trol equation ER (event report trigger), or the TRI command. (Factory-default
setup does not include the PUL command as an event report trigger. You can add
the PUL command by entering the Relay Word bit TESTPUL in the ER
SEL
OGIC control equation.)
You can use an event trigger to initiate capturing power system data. The proce-
dure in the following steps shows how to use the QuickSet HMI to generate the
TRI command, which triggers an event capture. In this example, the relay uses
default parameters to record the event. These parameters are at a sampling rate
(SRATE) of 2000 samples per second (2 kHz), a pretrigger or prefault recording
length (PRE) of 0.1 seconds, and an event report length (LER) of 0.5 seconds.
See Duration of Data Captures and Event Reports on page 9.7 for complete
information on changing these default settings to match your application.
This example assumes that you have successfully established communication
with the relay (see Making an EIA-232 Serial Port Connection on page 3.4). In
addition, you must be familiar with relay access levels and passwords (see
Changing the Default Passwords in the Terminal on page 3.10 to change the
default access level passwords). You should also be familiar with QuickSet (see
Checking Relay Status in QuickSet on page 3.12 and Section 2: PC Software). In
addition, you should perform the steps described in View Metering Using the Ter-
minal on page 3.35 to connect secondary test voltages and currents, and to set the
relay to meter these quantities correctly.
Step 1. Connect voltage and current sources to the relay secondary voltage
and secondary current inputs (use the connections of View Metering
Using the Terminal on page 3.35 and Figure 3.27 or Figure 3.28).
Step 2. Apply power to the relay, start QuickSet, and establish a connection
with the relay. See Step 1 and Step 2 of Checking Relay Status in
QuickSet on page 3.12 for detailed steps.
NOTE: The Trigger New Event button
in the Event History dialog box may
also be used (see
Figure 3.42
).
Step 3. In the top toolbar menu, select Tools > HMI > HMI to start the
QuickSet operator interface.
Step 4. Click Control Window in the HMI tree view (see Figure 3.39).
QuickSet displays the Control Window similar to that shown in
Figure 3.40.
Figure 3.39 QuickSet HMI Tree View
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