S&C TripSaver II - Page 70

70 S&C Instruction Sheet 461-504
Informational and Settings Screens
Time Multiplier (Check box). Select this check box to enable the Time Multiplier
setting.
Time Multiplier. Specify modier for inverse curve segment (minimum value: 0.01;
maximum value: 15).
Reset (Check box). Select this check box to enable the Reset setting.
Reset Type. Select the reset method for inverse curve segment. (Default: D/T Denite
Time (D/T) Denite Time or (E/M) Electromechanical).
Reset Time, s. Specify the time delay before inverse curve segment resets (in seconds).
(Default: 0.1; minimum value: 0; maximum value: 1000)
Time Adder (check box). Select this check box to enable time adder.
Time Adder, Time, s. Specify a time modier (in seconds) to add a constant time delay
to the inverse curve segment. (Default: 0; minimum value: 0; maximum value: 0.25)
Max Time (check box). Select this check box to enable the Max Time setting. The Max
Time setting enables the setting of a maximum time duration of the current before a trip
will occur. This is helpful when TCC curves are designed where the load or fault must be
sustained for long durations (seconds or minutes) when the current magnitude is near
the minimum trip threshold, before a protection Trip operation occurs according to the
set TCC curve. When the Max Time setting is applied and a fault event occurs, either
the Max Time setting or the Time-Current Characteristic curve will cause the recloser
to trip, whichever is fastest.
Max Time, Time, s. Specify a maximum time (in seconds) to trip prior to inverse curve
segment expiration. (Default: Disabled; minimum value: 0.2; maximum value: 180)
Low Current Cutoff (check box). Select this check box to enable low-current cutoff.
Low Current Cutoff, Current, A. Specify the current (in primary amperes) below
which the inverse curve segment is truncated (minimum value: 5; maximum value: 600).
Note: This value must be greater than the minimum trip current of the inverse curve
segment and smaller than the High Current Cutoff setting.
Denite Time 1 (Inst Trip) (check box). Select this check box to enable the Denite
Time 1 element. For Instantaneous Trip, the settings depend on the emulated device,
and the Minimum Trip, Coil Rating, or Ampere rating depending on the emulated device
(microprocessor recloser, hydraulic recloser, or fuse respectively) and the setting is
listed in the yover text. Note: The Denite Time 1 element must be enabled before the
Denite Time 2 element can be enabled. If the Denite Time 1 element is deselected,
the Denite Time 2 element is deselected automatically.
Denite Time 1 Current, A. Specify the current (in primary amperes) at which the
Denite Time 1 element picks up (minimum value: 5; maximum value: 6300). Note:
This value must be greater than the Minimum Trip current, greater than the Low Current
Cutoff current, less than or equal to the interrupting rating of the recloser, and smaller
than the High Current Cutoff setting.
Denite Time 1, Time, s. Specify the time delay (in seconds) after which Denite
Time 1 element trips (minimum value: 0; maximum value: 1000). Note: This value must
be less than or equal to time on inverse curve segment at the Denite Time 1 Current
setting.