Application Guide - NP900 Series
480 (504
)
A996A
Table 3.7.3.2-282 Disturbance recorder setting table is presented below.
Name
Range
Step
Default
Description
Manual Trigger
0:-
1:Trig
-
0:Disabled
Trig the disturbance recorder manually.
Clear all records
0:-
1:Clear
-
0:Disabled
Clears all disturbance recordings.
Clear newest record
0:-
1:Clear
-
0:Mega
Clears the latest of stored recordings.
Clear oldest record
0:-
1:Clear
-
-
Clears the oldest stored recording.
Max amount of
recordings
0…2
32
-1
1
-
Maximum amount of recordings possible
to store in the memory of IED.
Max length of
recording
0…1800 s
0.001 -
Maximum settable length of a single
recording,
Recordings in
memory
0…2
32
-1
1
0
How many recordings stored in the
memory of IED.
Recorder trigger
Enable by
checking the
box
-
Unchecked
Enable triggers by checking the boxes.
Check “Digital recording channels” –list
for possible trigger inputs.
Recording length
0.1…1800 s
0.001 1.0 s
Measured energy per phase in kilo –or
mega values.
Recording mode
0:FIFO
1:KEEP OLDS
-
0:FIFO
First in first out replaces the oldest stored
recording by the latest one if the memory
is full.
Keep olds won’t accept new recordings
when the memory is full.
Analog channel
samples
0:8 s/c
1:16 s/c
2:32 s/c
3:64 s/c
-
3:64s/c
Sample rate of the disturbance recorder.
Samples are saved from the measured
wave according the setting.
Digital channel
samples
Fixed 5ms
-
5ms
Fixed sample rate of the recorded digital
channels.
Pre triggering time
5…95%
1
20%
Percentage of total recording length
before the triggering.
Analog Recording
CH1…8
0…8 freely
selectable
channels
-
None selected
Check available analog channels from the
“Analogue recording channels” –list for
possible recorder inputs.
Auto. get recordings
0:Disbaled
1:Enabled
-
0:Disbaled
Transfer recordings to relay FTP directory
automatically to be fetched to SCADA
system via FTP client.
Rec.Digital Channels 0…32 freely
selectable
channels
-
None selected
Check available digital channels from the
“Digital recording channels” –list for
possible recorder inputs.
Notice that disturbance recorder is not ready unless the “Max length of recording” is
showing some value other than zero. At least one trigger input has to be selected to
“Recorder Trigger” -menu to fulfill this term.
3.7.3.3
E
VENTS
Disturbance recorder generates an event each time when it is triggered either manually or
by using dedicated signals. Event cannot be masked off.
