Trip
Specify from the drop-down list
1-Phase
or
3-Phase
mode.
O/C Sequence
(R2 control)
Specify the action to be performed during each Phase Overcurrent test. Select from the
drop-down list: the
Pulse
option for a test using PulseClosing Technology or the
Close
option.
O/C Sequence
(R3 control)
For the
Overcurrent Sequence
setpoint specify the action to be performed during each
Phase Overcurrent test. Select from the drop-down list: the
Pulse Close
option for a test
using PulseClosing Technology or the
Point-On-Wave (POW) Close
option.
IFS Sequence
(R2 control)
Specify the action to be performed during each Intelligent Fuse Saving test. Select from
the drop-down list: the
Pulse
option for a test using PulseClosing Technology or the
Close
option.
IFS Sequence
(R3 control)
Specify the action to be performed during each Intelligent Fuse Saving test. Select from
the drop-down list: the
Pulse Close
option for a test using PulseClosing Technology or
the
Point-On-Wave (POW) Close
option.
O/C and IFS Sequence Reset Time
Specify the test
Sequence Reset Time
setting (in seconds). (Range: 0-600;
Step: 1) The same
Sequence Reset Time
setting is used for all test sequences. If the
IntelliRupter fault interrupter remains in the
Closed
state at the completion of an action
in the test sequence and no overcurrent element has picked up and started timing within
this setting, the
Test Counter
indicator resets and any TCC that has changed will reset
to its initial trip setting. When the
Intelligent Fuse Saving
(IFS) setting is configured
and the
IFS
element (phase and/or ground) picks up and starts timing for a minimum of
two cycles and then the current goes below both the
Phase Minimum Trip
and
Ground
Minimum Trip
thresholds for at least two cycles, the
IFS
elements are turned off for
the duration of the configured
O/C and IFS Sequence Reset Time
period.
When another fault occurs within the
O/C and IFS Sequence Reset Time
period,
only the base curve will be active. When the IntelliRupter fault interrupter trips using
the base curve, it enters the test sequence as usual. The IntelliRupter fault interrupter
stays in the
Initial Trip
state unless it trips on the base curve. This is not the
Sequence
Coordination
feature that is exclusive to the
IFS
mode.
When the
O/C and IFS Sequence Reset Time
period expires and no elements are
picked up, the
IFS
mode is reinstated and the IntelliRupter fault interrupter is reset to
the
Initial Trip
state. The
IFS
mode is only active in the
Initial Trip
state, and this
feature only applies when the
IFS
mode is active.
S&C Instruction Sheet 766-530 75
Protection Setup