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8.4
Disturbance Fault Recording (DFR)
Disturbance fault recording includes the disturbance records in COMTRADE format and the data of each
COMTRADE (fault reports). The relay can store, in FRAM memory. From the standby mode screen,
press
‘
OK
’
key to access the first line of menus. Use the
‘▲’
and
‘▼’
keys to position the cursor over the
‘
FAULTS
’
screen. They are also accessible by pressing
‘◄’
from the standby menu. The next information
can be checked:
•
Date-time at which the fault started.
•
List of all events occurred in the relay during the fault.
To delete the fault reports buffer, position the cursor over the fault report menu and press and hold the
‘
RESET
’
key, until there are no fault reports. There will be an event
‘
Fault reports erased
’
.
Besides, the relay can store the fault reports in COMTRADE format - cyclic recording by FIFO method -
(resolution 32 samples/cycle):
5 COMTRADE records (260 cycles each record): 1 to 8 pre-fault 252 to 259 postfault cycles.
25 COMTRADE records (60 cycles each record): 1 to 8 pre-fault 52 to 59 postfault cycles.
50 COMTRADE records (30 cycles each record): 1 to 8 pre-fault 22 to 29 postfault cycles.
100 COMTRADE records (15 cycles each record): 1 to 8 pre-fault 7 to 14 postfault cycles.
The DFR start is configurable by the user (by default it is configured to the general trip). The DFR closure
will happen when the time is finished or when the events record is full (29 events).
The COMTRADE file is downloaded by communications through the front or rear port using the Modbus
protocol. The SICom communications program allows the user to download and save the reports in
COMTRADE format (IEEE C37.111-1991).
Once the COMTRADE is saved 3 files are generated:
•
File
‘
.dat
’
: The information of the COMTRADE record in data format.
•
File
‘
.cfg
’
The information of the COMTRADE record in graphic format (this is the file to
open to analyze the waves and the signals involved in the DFR).
•
File
‘
.hdr
’
: This is the COMTRADE header file that includes: date-time of the record,
number of COMTRADE record, pre-fault and post-fault cycles and analog/digital channels.
The format of a COMTRADE header file can be shown below:
******************** .HDR COMTRADE ****************************
***************************************************************
Cycles pre-fault =8
Total cycles = 60
Analog channels = 4
Digital channels = 96
COMTRADE = 2
Date/Time = 1/8/2019 - 16:27:36.588
****************************************************************
The following information is included in each COMTRADE file:
•
Analog channels
Number
Analog channels
1
Phase A current
2
Phase B current
3
Phase C current
4
Neutral current
Содержание SIL-A A Series
Страница 8: ...www fanox com Rev 04 8 112 2 1 2 Case dimensions The dimensions are in mm...
Страница 9: ...www fanox com Rev 04 9 112 2 1 3 Connection diagrams 2 1 3 1 Analog connections...
Страница 12: ...www fanox com Rev 04 12 112 2 2 SILA with short circuitable current terminals 2 2 1 Front view...
Страница 13: ...www fanox com Rev 04 13 112 2 2 2 Case dimensions The dimensions are in mm...
Страница 14: ...www fanox com Rev 04 14 112 2 2 3 Connection diagrams 2 2 3 1 Analogic connections...
Страница 22: ...www fanox com Rev 04 22 112 3 3 Functional diagram...
Страница 34: ...www fanox com Rev 04 34 112 4 10 4 Thermal protection curves This is the thermal curve for 3 minutes...
Страница 61: ...www fanox com Rev 04 61 112...
Страница 63: ...www fanox com Rev 04 63 112...
Страница 64: ...www fanox com Rev 04 64 112...
Страница 65: ...www fanox com Rev 04 65 112...
Страница 111: ...www fanox com Rev 04 111 112 11 APPENDIX NOTES...
