Schweitzer Engineering Laboratories SEL-311C - Figure 12.1 Example Event Summary

12.4
SEL-311C Relay Instruction Manual Date Code 20060320
Standard Event Reports and SER
Standard 15/30/60/180-Cycle Event Reports
➤ Breaker Trip Time
➤ Recloser shot count at the trigger time
➤ System frequency at trigger time
➤ Active Settings Group
➤ Breaker Close Time
➤ Front-panel fault type targets at the time of trip
➤ Breaker Status (Open or closed)
➤ Phase (IA, IB, IC, VA, VB, VC), calculated residual ground (I
G
=
3I
0
), directional polarizing current IP, and negative-sequence
(3I
2
) currents, along with phase angles for pre-fault and fault
quantities.
➤ MIRRORED BITS
®
status if MIRRORED BITS are enabled.
The relay includes event summary information in the standard event report.
The identifiers, date, and time information are at the top of the standard event
report, and the other information follows as channel row data and summary
data at the end. See Figure 12.3.
Figure 12.1 corresponds to the full-length standard 15-cycle event report in
Figure 12.3.
=>>
SEL-311C POTT Date: 10/14/99 Time: 08:53:34.926
EXAMPLE: BUS B, BREAKER 3
Event: BCG T Location: 48.84 Trip Time: 08:53:34.930
#: 00008 Shot: Freq: 60.01 Group: 1 Close Time: --:--:--.---
Targets: ZONE1 Breaker: Closed
PreFault: IA IB IC IP IG 3I2 VA VB VC
MAG(A/kV) 199 200 201 0 2 0 131.500 131.610 131.730
ANG(DEG) -0.04-120.27 120.04 59.15 149.15 165.15 0.00 -120.03 119.94
Fault:
MAG(A/kV) 200 2478 2480 0 212 4294 131.570 113.930 113.980
ANG(DEG) -0.46-172.34 6.65 59.15 -11.30 94.15 0.73 -123.36 124.67
L C R L C R
B B B R B B B R
O A A O O A A O
K D D K K D D K
MB:8->1 RMBA TMBA RMBB TMBB A A A A B B B B
TRIG 00000000 00000000 00000000 00000000 0 0 0 0 0 0 0 0
TRIP 00000000 00000000 00000000 00000000 0 0 0 0 0 0 0 0
=>>
Figure 12.1 Example Event Summary
The relay sends event summaries to all serial ports with setting AUTO = Y
each time an event triggers.
The latest event summaries are stored in nonvolatile memory and are accessed
by the SUM and HIS (Event Summaries/History) commands.
Event Type
The Event: field shows the event type. The possible event types and their
descriptions are shown in Table 12.1. Note the correspondence to the
preceding event report triggering conditions (see Standard Event Report
Triggering on page 12.2).
NOTE: Figure 12.3 is on multiple
pages.