ABB Relion 650 Series Technical Manual page 467

1MRK 506 326-UUS B
If the average value is below the set threshold level for an undervoltage or undercurrent trigger,
this trigger is indicated with a less than (<) sign with its name. The procedure is separately
performed for each channel.
This method of checking the analog trigger conditions gives a function which is insensitive to DC
offset in the signal. The operate time for this initiation is typically in the range of one cycle, 16 2/3
ms for a 60 Hz network.
All under/over trig signal information is available on the local HMI and PCM600.
13.6.6.13 Post Retrigger
Disturbance report function does not respond to any new trig condition, during a recording. Under
certain circumstances the fault condition may reoccur during the post-fault recording, for
instance by automatic reclosing to a still faulty power line.
In order to capture the new disturbance it is possible to allow retriggering (
during the post-fault time. In this case a new, complete recording will start and, during a period,
run in parallel with the initial recording.
When the retrig parameter is disabled (
the post-fault (
post-fault period and lasts longer than the proceeding recording a new complete recording will be
fetched.
Disturbance report function can handle maximum 3 simultaneous disturbance recordings.
13.6.7 Technical data
Table 406: DRPRDRE technical data
Function
Current recording
Voltage recording
Pre-fault time
Post-fault time
Limit time
Maximum number of recordings
Time tagging resolution
Maximum number of analog inputs
Maximum number of binary inputs
Maximum number of phasors in the Trip Value
recorder per recording
Maximum number of indications in a disturbance
report
Table continues on next page
Line distance protection REL650
Technical manual
PostFaultrecT or TimeLimit ) period is terminated. If a new trig occurs during the
© Copyright 2011 ABB Power Grids. All rights reserved
PostRetrig = Disabled ), a new recording will not start until
Range or value
-
-
(0.05–3.00) s
(0.1–10.0) s
(0.5–8.0) s
100, first in - first out
1 ms
30 + 10 (external + internally
derived)
96
30
96
Section 13
Monitoring
M12155-173 v4
PostRetrig = Enabled )
M12760-1 v7
Accuracy
± 1,0% of I at I ≤ I
r r
± 1,0% of I at I > Ir
± 1,0% of V at V≤ V
n n
± 1,0% of Vat V> V
n
-
-
-
-
See time
synchronization
technical data
-
-
-
-
461