72 S&C Instruction Sheet 461-504
Informational and Settings Screens
Standard NR
The Standard NR setting allows the user to select any curve in the library when NR or
R-NR mode are active. In previous versions of the TripSaver II recloser rmware, the
NR Curve was factory-set as the instantaneous curve and was not congurable. This
setting will be used by the TripSaver II recloser when the MODE-SELECTOR lever is in
the Down position or when the recloser is in the R-NR mode.
The recloser will not go through a reclosing sequence but will respond to the TCC set in
the Standard NR setting field. The default setting is illustrated in Figure 102 on page 71.
Note: To make the Standard NR setting behave like an instantaneous curve, as was
standard in Service Center Configuration Software version 1.6 and earlier, select the
Definite Time setting for the Inverse Segment mode and make sure the minimum
trip value of the Standard NR setting is the same as the minimum trip value of the
initial trip curve as shown in Figure 80 on page 57.
Figure 103. The Standard NR setting field.
Post Fault Wakeup NR
The Post Fault Wakeup NR setting is congured when a separate curve is desired when
the TripSaver II recloser is energized or is closed into its mounting after a drop-open
event occurs. See Figure 104. This setting will be used by the TripSaver II recloser when
the MODE-SELECTOR lever is in the Down position or when the recloser is in the R-NR
mode. After 10 cycles, if a current above the Current, A setting is not detected, the Post
Fault Wakeup TCC curve will revert to the Standard NR curve settings.
The Post Fault Wakeup NR setting will be used after the recloser has dropped open
in response to fault current, or another event that results in the recloser dropping open
(i.e. LMO or Gang Operation). In situations where the recloser is waking up or is closed
into the mounting after being de-energized when it did not experience a drop open event,
the Cold Wakeup NR setting will be used. See Figure 105 on page 73.
If a Post Fault Wakeup NR setting is not required, set the TCC curve to the same
settings as the Standard NR TCC setting.
Figure 104. The Post Fault Wakeup NR setting field.
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