generate a trigger from a logic zero, the selected signal will not be listed in the
indications list of the disturbance report.
Analog-signal trigger
M12155-171 v6
All analog signals are available for trigger purposes, no matter if they are recorded
in the disturbance recorder or not. The settings are OverTrigOp, UnderTrigOp,
OverTrigLe and UnderTrigLe.
The check of the trigger condition is based on peak-to-peak values. When this is
found, the absolute average value of these two peak values is calculated. If the
average value is above the threshold level for an overvoltage or overcurrent trigger,
this trigger is indicated with a greater than (>) sign with the user-defined name.
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 start conditions gives a function which is
insensitive to DC offset in the signal. The operate time for this start is typically in
the range of one cycle, 20 ms for a 50 Hz network.
All under/over trig signal information is available on the local HMI and PCM600.
14.6.8 Technical data
M12760-1 v10
Table 430: DRPRDRE technical data
Function
Range or value Accuracy
Pre-fault time (0.05–9.90) s -
Post-fault time (0.1–10.0) s -
Limit time (0.5–10.0) s -
Maximum number of recordings 100, first in - first out -
Time tagging resolution 1 ms See table 600
Maximum number of analog inputs 30 + 10 (external + internally
derived)
-
Maximum number of binary inputs 352 -
Maximum number of phasors in the
Trip Value recorder per recording
30 -
Maximum number of indications in a
disturbance report
352 -
Maximum number of events in the
Event recording per recording
150 -
Maximum number of events in the
Event list
1000, first in - first out -
Table continues on next page
1MRK 506 382-UEN A Section 14
Monitoring
Line distance protection REL650 2.2 IEC 617
Technical manual
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