S&C TripSaver II - Page 62

62 S&C Instruction Sheet 461-504
Informational and Settings Screens
Reset Type. Select the reset method for the inverse curve segment from the drop-down
list: “D/T” (Denite Time) or “E/M” (Electromechanical). (This is not to be confused with
O/C Sequence Time setting. “Reset” here means how fast that curve will reset if it has
picked up but the fault disappears before the TripSaver II recloser could trip.) This eld
is mandatory.
Reset Time, s. Specify the time delay (in seconds) before the inverse curve segment resets
under D/T reset type (minimum value: 0; maximum value: 1,000). This eld is mandatory.
Reset Time, s (TM1, I0A). When the Reset Type setting is E/M, the title of the reset time
will be changed to “Reset Time, s (TM1, I0A).” The value specied here is the time delay
(in seconds) before the inverse curve segment resets when the Time Multiplier setting
is set at 1 and load current owing is at 0 A (minimum value: 0; maximum value: 1,000).
The actual reset time used by the Electromechanical Reset feature will be calculated
using the following quadratic algorithm: the value in this eld * the time multiplier entered/
(the load current/the minimum trip entered)^2 - 1). This eld is mandatory. See Figure 87.
Figure 87. The Reset Time setting field for E/M Reset Type.
Advanced TCC Curve Setup (optional). (Click on the Advanced TCC Curve Setup
button to expand/collapse area.) See Figure 88.
Figure 88. The Advanced TCC Curve Setup fields for a microprocessor recloser.