Sel SEL-787 - Sequential Events Recorder (SER) Report

9.22
SEL-787 Relay Instruction Manual Date Code 20150130
Analyzing Events
Sequential Events Recorder (SER) Report
Sequential Events Recorder (SER) Report
The SER report captures relay element state changes over an extended period.
SER report data are useful in commissioning tests and root-cause analysis
studies. SER information is stored when state changes occur. The report
records the most recent 1024 state changes if a relay element is listed in the
SER trigger equations.
SER Triggering
Settings SER1 through SER4 are used to select entries in the SER report. To
capture relay element state changes in the SER report, the relay element name
must be programmed into one of the four SER trigger equations. Each of the
four programmable trigger equations allows entry of as many as 24 relay
elements; the SER report can monitor a total of 96 relay elements.
The relay adds a message to the SER to indicate power up or settings change
conditions:
Each entry in the SER includes the SER row number, date, time, element
name, and element state.
SER Aliases
You may rename as many as 20 of the SER trigger conditions using the
ALIAS settings. For instance, the factory-default alias setting 2 renames Relay
Word bit PB02 for reporting in the SER:
ALIAS2:= PB02 FP_LOCK PICKUP DROPOUT
[11]
782.5 636.1 2.6 3.6 * 1. .. .. 1. ... . . .*
777.9 633.8 3.4 3.6 * 1. .. .. 1. ... . . .*
777.9 633.7 0.3 2.6 * 1. .. .. 1. ... . . .*
780.7 634.7 5.6 2.2 * 1. .. .. 1. ... . . .*
[12]
779.9 634.4 0.2 3.4 * 1. .. .. 1. ... . . .*
777.4 633.3 4.8 5.5 * 1. .. .. 1. ... . . .*
778.1 633.7 3.2 4.8 * 1. .. .. 1. ... . . .*
780.6 634.7 3.7 0.0 * 1. .. .. 1. ... . . .*
[13]
780.6 634.7 0.2 2.6 * 1. .. .. 1. ... . . .*
778.0 633.7 3.6 5.7 * 1. .. .. 1. ... . . .*
779.4 634.4 2.4 5.0 * 1. .. .. 1. ... . . .*
781.9 635.4 2.4 2.2 * 1. .. .. 1. ... . . .*
[14]
781.2 635.1 0.2 3.4 * 1. .. .. 1. ... . . .*
778.4 634.2 3.6 5.5* * 1. .. .. 1. ... . . .*
779.2 634.5 2.6 4.8 * 1. .. .. 1. ... . . .*
779.7 634.3 2.6 2.4 * 1. .. .. 1. ... . . .*
[15]
778.8 634.0 2.4 5.6 * 1. .. .. 1. ... . . .*
776.3 632.9 3.4 6.9 * 1. .. .. 1. ... . . .*
777.1 633.3 2.6 4.8 * 1. .. .. 1. ... . . .*
782.1 635.3 3.7 0.3 * 1. .. .. 1. ... . . .*
Figure 9.7 Example Standard 15-cycle Differential Event Report (EVE DIF1
Command) 1/4 Cycle Resolution (Sheet 2 of 2)
Relay Powered Up
.
.
.
Relay Settings Changed