Sel SEL-421 - Page 297

R.4.23
Date Code 20111215 Reference Manual SEL-421 Relay
Communications Interfaces
Communications Card
The BREAKER region contains some of the information available in a
summary Breaker report. This region is updated every 15 seconds. See
Tab le 4.24 for the Map.
Table 4.23 SEL-421 Communications Card Database Structure—HISTORY Region
Address
(Hex)
Name Type Description
4000 _YEAR int 4-digit year when data was sampled
4001 DAY_OF_YEAR int 1–366 day when data was sampled
4002 TIME(ms) long int Time of day in msec when data was sampled
(0–86,400,000)
4004 REF_NUM int[10] Event serial number
400E MONTH int[10] Month of event
4018 DAY int[10] Day of event
4022 YEAR int[10] Year of event
402C HOUR int[10] Hour of event
4036 MIN int[10] Minute of event
4040 SEC int[10] Second of event
404A MSEC int[10] Milliseconds of event
4054 EVENT char[60] Event type string
4090 GROUP int[10] Active group during fault
409A FREQ float[10] System frequency at time of fault
40AE TARGETS char[160] System targets from event
414E FAULT_LOC float[10] Fault location
4162 SHOT int[10] Recloser shot counter (sum of 1-pole and 3-
pole)
416C SHOT_1P int[10] Single-pole recloser counter
4176 SHOT_3P int[10] Three-pole recloser counter
4180 CURR int[10] Fault current in primary amps
Table 4.24 SEL-421 Communications Card Database Structure—BREAKER
Region (Sheet 1 of 2)
Address
(Hex)
Name Type Description
5000 _YEAR int 4-digit year when data was sampled
5001 DAY_OF_YEAR int 1–366 day when data was sampled
5002 TIME(ms) long int Time of day in msec when data was sampled
(0–86,400,000)
5004 BCWA1 float Breaker 1 phase A breaker wear (%)
5006 BCWB1 float Breaker 1 phase B breaker wear (%)
5008 BCWC1 float Breaker 1 phase C breaker wear (%)
500A BCWA2 float Breaker 2 phase A breaker wear (%)
500C BCWB2 float Breaker 2 phase B breaker wear (%)
500E BCWC2 float Breaker 2 phase C breaker wear (%)
5010 CURA1 float Breaker 1 phase A accumulated current (kA)
5012 CURB1 float Breaker 1 phase B accumulated current (kA)