Settings
SEL-351P Quick-Start Installation and User's Guide (Portuguese) 57
Setting Default Range Incr.
Restore min. trips - time
limit
OFF OFF, 0-999999.00 cycles 0.25 cyc.
The Restore min. trips - time limit is an option to force current thresholds for overcurrent detection
from temporary cold load pickup values back to regular Min. trip (No. 5, 6, or 7) levels. This time
limit is set if the user is concerned about an overcurrent element being desensitized too long in the cold
load inrush scheme (force
the threshold back, don’t let it return naturally as described with the
preceding Loss of load diversity timer setting).
Restore min. trips - time limit ≠ OFF:
The Restore min. trips - time limit starts to time if the recloser is closed and both of the
following are true:
• The cold load pickup scheme is active for at least one element (see preceding Cold load
pickup and Loss of load diversity settings).
• At least one of the following three Restore min. trip settings is set to Y.
If the recloser remains closed, the Restore min. trips - time limit times out and selected current
thresholds for overcurrent detection (see following three Restore min. trip settings) are forced
back to their respective regular Min. trip (No. 4, 5, and 6) levels. The respective fast curves are
also enabled again. The natural
return to the regular Min. trip levels (described with the
preceding Loss of load diversity timer setting) can also occur if the inrush current goes below the
Min. trip level for at least 15 seconds before
Restore min. trips - time limit times out.
Restore min. trips - time limit = OFF:
If the cold load pickup scheme is active, then the current thresholds for overcurrent detection
can only return back to their regular Min. trip levels naturally
as described with the preceding
Loss of load diversity timer setting.
• This setting is hidden and set to OFF if Cold load pickup scheme is set to N.
Setting Default Range Incr.
Restore min. trip - phase N Y/N
Restore min. trip - phase = Y:
If the cold load pickup scheme is active, the phase current threshold for overcurrent detection is
forced
back to the regular Min. trip - phase (No. 5) level when the preceding Restore min.
trips - time limit times out.
Restore min. trip - phase = N:
If the cold load pickup scheme is active, the phase current threshold for overcurrent detection
can only return back to its regular Min. trip - phase level naturally
as described with the
preceding Loss of load diversity timer setting.
• This setting is hidden and set to N if Restore min. trips - time limit is set to OFF or Delay curve
- phase (No. 10) is set to OFF.
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