9.14
SEL-400 Series Relays Instruction Manual Date Code 20171006
Reporting
Event Reports, Event Summaries, and Event Histories
Event Report
The relay generates event reports to display analog data, digital data (control
inputs, control outputs, and the state of Relay Word bits), and relay settings. The
event report is a complete description of the data that the relay recorded in
response to an event trigger. Each event report includes these components:
➤ Report header and analog section—Currents and voltages,
sometimes including calculated quantities such as differential
currents
➤ Digital section—Relay Word bit elements, control outputs, control
inputs
➤ Event summary
➤ Settings
➢ Group settings
➢ Global settings
➢ Output settings
➢ SELOGIC control equations protection logic
Viewing the Event Report
Access event reports from the communications ports and communications cards
at Access Level 1 and higher. (You cannot view event reports at the front panel,
although you can view event summary information at the front-panel display.)
You can independently acknowledge the oldest event report at each communica-
tions port (EVE ACK command) so that you and users at other ports (SCADA,
Engineering, etc.) can retrieve complete sets of event reports. To acknowledge
the oldest event report, you must first view that event report at a particular port by
using the EVE N(EXT) command.
You can use the EVE command and a terminal to retrieve event reports by event
order or by event serial number. (The relay labels each new event with a unique
serial number as reported in the HIS command history report [see Event History on
page 9.27].)
Events are referenced two ways: by relative reference or by event serial number.
Relative references are in the range 1–9999, where 1 refers to the most recent
event, 2 to the next most recent, and so on. Event serial numbers are in the range
10000–42767. You can find the event serial number in the event history report.
With the EVE and CEV commands, you can retrieve events using either type of
reference. Event files are names based on the event serial number.
By applying modifiers to the EVE command, you can retrieve only analog or
digital information, and you can exclude the summary or settings portions of the
report. The default EVE command event report data resolution is 4 samples/cycle
and the default report length is 0.5 seconds (30 cycles at 60 Hz or 25 cycles at
50 Hz) with the factory default setting for LER.
See the EVE command description in Section 9: ASCII Command Reference in
the product-specific instruction manual for a complete list of options.
You can retrieve event reports with the QuickSet Tools > Events > View Event Files
menu. The Analysis > View Event Files menu gives you oscillogram/element
displays, phasor displays, harmonic analysis, and an event summary for each
event you select in the Event History dialog box.
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