10.19
Date Code 20170927 Instruction Manual SEL-751 Relay
Analyzing Events
Event Reporting
The Ethernet file server EVENTS folder contains two types of files for each
event stored in the relay:
➤ Compressed, 4 sample/cycle, filtered event, equivalent to
issuing a CEV command. These files are named C4.nnnnn.cev,
where nnnnn is the unique event identifier.
➤ Compressed, 32 sample/cycle, unfiltered event, equivalent to
issuing a CEV R command. These files are named
CR.nnnnn.cev, where nnnnn is the unique event identifier.
The date and time displayed for events are from the time of event trigger. The
times are UTC.
The EVENTS folder also contains the event history with unique event
identification number (equivalent to the HIS command) and the compressed
event history (equivalent to the CHIS command). See HISTORY Command on
page 7.37. The Event files can also be retrieved with the FIL command. See
FILE Command on page 7.32 and CHIS Command on page 10.2 for
additional information.
CEVENT
The relay provides a Compressed ASCII event report for SCADA and other
automation applications. QuickSet uses Compressed ASCII commands to
gather event report data. If you want to view the Compressed ASCII event
report data, use a terminal to issue ASCII command CEV. A sample of the
report appears in Figure 10.6; this is a comma-delimited ASCII file. The relay
appends a four-digit hex checksum at the end of the line in the Compressed
ASCII report.
Items included in the Compressed ASCII event report are similar to the event
report, although the relay reports the items in a special order. CEV files (and
COMTRADE files) include all Relay Word bits (see Appendix K: Relay Word
Bits). See SEL Compressed ASCII Commands on page C.1 for more
information on the Compressed ASCII command set.
=>>CEV <Enter>
"FID","CEV_VER","PART_NUM","SER_NUM","097C"
"FID=SEL-751-R112-V0-Z006002-D20151112","2.0.1","751401B0X0XL087067N","000000000000000","120A"
"MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","0ACA"
12,14,2016,12,23,52,927,"0496"
Report Header
"REC_NUM","REF_NUM","NUM_CH_A","NUM_CH_D","FREQ","NFREQ","SAM/CYC_A","SAM/
CYC_D","NUM_OF_CYC","PRIM_VAL","CTR_IA","CTR_IB","CTR_IC","CTR_IN","CTR_IG","PTR_VAB","PTR_VBC","PT
R_VCA","PTR_VS","EVENT","LOCATION","GROUP","IA(A)","IB(A)","IC(A)","IN(A)","IG(A)","VAB(V)","VBC(V)
","VCA(V)","VS(V)","VDC(V)","WDG(C)","BRG(C)","AMB(C)","OTH(C)","5057"
Summary Labels
1,36266,19,1264,60.0,60,4,4,15,"YES",120.00,120.00,120.00,120.00,120.00,180.00,180.00,180.00,4.80,"A
G T",$$$$,1,1212.2,119.6,122.2,0.00,1089.0,12049.299,12055.252,20960.781,0.152,2.012,"NA","NA","NA"
,"NA","2753"
Summary Data
Figure 10.6 Sample Compressed ASCII Event Report
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