Sel SEL-411L - Event Reporting and SER

SEL-411L Data Sheet Schweitzer Engineering Laboratories, Inc.
22
Event Reporting and SER
Event reports and SER features simplify post-fault analy-
sis and help improve your understanding of both simple
and complex protective scheme operations. These fea-
tures also aid in testing and troubleshooting relay settings
and protective schemes.
Oscillography and Event Reporting
In response to a user-selected internal or external trigger,
the voltage, current, and element status information con-
tained in each event report confirms relay, scheme, and
system performance for every fault. The relay provides
sampling rates as fast as 8 kHz for analog quantities in a
COMTRADE file format, as well as eight-sample-per-
cycle and four-sample-per-cycle event reports. The relay
stores as much as 3 seconds of 8 kHz event data. The
relay supports inclusion of user-configurable analogs in
the events. Reports are stored in nonvolatile memory.
Relay settings operational in the relay at the time of the
event are appended to each event report.
Each relay provides event reports for analysis with soft-
ware such as SEL-5601-2
SYNCHROWAVE
®
Event Soft-
ware. With
SYNCHROWAVE Event, you can display
events from several relays to make the fault analysis eas-
ier and more meaningful. Because the different relays
time-stamp the events with values from their individual
clocks, be sure to time synchronize the relay with an
IRIG-B clock input or PTP source to use this feature.
Event Summary
Each time the relay generates a standard event report, it
also generates a corresponding event summary. This is a
concise description of an event that includes the follow-
ing information:
➤ Relay/terminal identification
➤ Event date and time
➤ Event type
➤ Event number
➤ Time source
➤ Active settings group
➤ Targets asserted during the fault
➤ Current magnitudes and angles for each terminal
➤ Pre-fault and fault calculated zero- and negative-
sequence currents
➤ Voltage magnitudes and angles
➤ Terminals tripped for this fault
➤ Recloser shot count at time of trigger (if applicable)
➤ Fault location (if applicable)
➤ Breaker status (open/close)
With an appropriate setting, the relay sends an event
summary in ASCII text automatically to one or more
serial ports each time an event report is triggered.
SER
Use this feature to gain a broad perspective of relay ele-
ment operation. Items that trigger an SER entry are select-
able and can include as many as 250 monitoring points,
such as I/O change-of-state and element pickup/dropout.
The relay SER stores the latest 1000 events.
Analog Signal Profiling
The relay provides analog signal profiling for as many as
20 analog quantities. Select any analog quantity mea-
sured or calculated by the relay for analog signal profil-
ing. You can select signal sampling rates of 1, 5, 15, 30,
and 60 minutes through settings. The analog signal pro-
file report provides a comma-separated variable (CSV)
list that you can load into any spreadsheet or database for
analysis and graphical display.
SEL
OGIC enable/disable functions can start and stop sig-
nal profiling based on Boolean or analog comparison
conditions.
Synchrophasors
Voltages (Primary Magnitude, Angle)
V
A, B, C
(Y), V
A, B, C
(Z)
Primary phase quantities (kV) for each of the six voltage sources available.
Currents
I
A, B, C
(W), I
A, B, C
(X)
Primary phase quantities (A) for each of the six voltage sources available.
Frequency
FREQ
dF/dT
Frequency (Hz) as measured by frequency source potential inputs.
Rate-of-change in frequency (Hz/s).
Table 3 Metering Capabilities (Sheet 2 of 2)
Capabilities Description