6-34 BE1-951 Reporting and Alarm Functions 9328900990 Rev L
BE1-951 FAULT DIRECTORY
STYLE NUMBER : E4N1H3Y
FIRMWARE VERSION: 2.59.00
REPORT DATE : 11/29/06
REPORT TIME : 03:12:37
STATION ID : SUBSTATION_1
RELAY ID : BE1-951
RELAY ADDRESS : 0
NEW FAULTS : 4 (02:23:27 11/29/06-02:23:44 11/29/06)
TOTAL FAULTS : 4 (02:23:27 11/29/06-02:23:44 11/29/06)
-#- --DATE-- --TIME-- --EVENT TYPE-- --OSC--
004 11/29/06 02:23:44 RF=TRIG 1
003 11/29/06 02:23:39 RF=TRIG 1
002 11/29/06 02:23:33 RF=TRIG 1
001 11/29/06 02:23:27 RF=TRIG 1
New Faults Counter. One line of the fault summary directory report contains the new faults counter. The
new faults counter tracks how many new fault reports have been recorded since the new faults counter
was reset to 0. This counter provides a way to check the fault information and then reset the new faults
counter. Then, the next time that the relay is checked, it's easy to determine if any fault reports have been
entered. Resetting the new faults counter is achieved using the RF-NEW=0 command. Write access to
Reports must be gained to reset the new faults counter through the communication ports. The new faults
counter can also be viewed at HMI Screen 4.1. The new faults counter cannot be reset at the HMI.
Fault Summary Reports. Individual fault summary reports can be retrieved using the RF-n command,
where n represents the number assigned to the fault summary report. To obtain the most recent report,
use RF-NEW. If additional detail is desired, Sequence of Events Recorder data and Oscillographic data
can be obtained for the faults also. This is discussed in greater detail later in this section.
Oscillographic Records
Recording Oscillographic Records
The fault reporting function can record up to 16, IEEE Standard Common Format for Transient Data
Exchange (COMTRADE) oscillographic records. Each time the fault reporting function starts recording a
fault summary report, it freezes a 4 cycle pre-fault buffer. If the fault is not cleared within that time, the
fault reporting function records a second oscillographic record. This second record captures the end of
the fault. Oscillographic records are stored in volatile memory. As additional faults are recorded, the
oldest records are overwritten. The relay has 240 cycles of memory. The SG-OSC setting sets the
number of partitions and the length of the record is a function of the number of records. See
Table 6-17.
Table 6-17. Possible Oscillographic Records
Number of Records Length in Cycles
6 40
8 30
10 24
12 20
15 16
16 15
If a second oscillographic record is required, the fault recording function will continue to record sample
data in the second record with no gap. During this time, a 5-cycle buffer is being filled. If the fault is
cleared within 5 cycles of the start of the second record, the record is terminated after it finished. If the
fault does not clear in that period of time, the fault reporting function continues to save 5 cycles of sample
data in its buffer until the fault is cleared. At that point, it freezes the 5-cycle buffer, providing 5 cycles of
end of fault data.
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