S&C IntelliRupter PulseCloser Manual page 89

Protection Setup
Min. Time—This is the time (in seconds) defining the fastest response of the
inverse-curve portion of the TCC curve. (Range: 0.000-100.000; Step: 0.001)
Time Mult.—This is the time multiplier for the inverse curve. (Range: 0.01-15.00;
Step: 0.001)
Time Adder—This is the time adder for the inverse curve. (Range: -10.000-100.000;
Step: 0.001)
Low Current Cutoff—This is the current (in primary amperes) at which the TCC curve
begins timing. This value must be equal to or greater than the lowest pickup value of the
inverse curve, the Definite Time 1 element, and the Definite Time 2 element. (Range:
6-16,000; Step: 1) The stated maximum is for 15-kV IntelliRupter fault interrupters; 27-kV
and 38-kV are limited to 12,500 amps maximum.
Reset—Select the reset method for the inverse curve from the drop-down list: Select
the D/T (Definite Time) or E/M (Electromechanical) mode.
Reset Time—If the Definite Time reset mode is selected, enter the time delay for the
reset (in seconds). (Range: 0.000-600.000; Step: 0.001)
Definite Time 1 Min. Trip—This is the current (in primary amperes) at which the
Definite Time 1 element picks up. (Range: 6-16,000; Step: 1) The stated maximum
is for 15-kV IntelliRupter fault interrupters; 27-kV and 38-kV models are limited to
12,500 amps maximum.
Definite Time 1 Min. Time—This is the time delay (in seconds) after which the Definite
Time 1 element trips. (Range: 0.000-600.000; Step: 0.001)
Definite Time 2 Min. Trip—This is the current (in primary amperes) at which the
Definite Time 2 element picks up. (Range: 6-16,000; Step: 1) The stated maximum
is for 15-kV IntelliRupter fault interrupters; 27-kV and 38-kV models are limited to
12,500 amps maximum.
Definite Time 2 Min. Time—This is the time delay (in seconds) after which the Definite
Time 2 element trips. (Range: 0.000-600.000; Step: 0.001)
Ground Overcurrent
The Ground Overcurrent element trips the IntelliRupter fault interrupter when the
computed residual of the three-phase elements exceeds the pickup value for the time
value set by the inverse curve or definite time delay.
Ground Check box—Select this box to configure the Ground Overcurrent element.
Inverse Segment—Select the curve from the drop-down list of inverse-curve names
or select the None option. When the None option is selected, only the Definite Time
settings will be used.
Min. Trip—This is the current (in primary amperes) at which the inverse curve begins
timing. (Range: 6-16,000; Step: 1) The stated maximum is for 15-kV IntelliRupter fault
interrupters; 27-kV and 38-kV models are limited to 12,500 amps maximum.
Min. Time—This is the time (in seconds) defining the fastest response of the inverse-
curve portion of the TCC curve. (Range: 0.000-100.000; Step: 0.001)
Time Mult.—This is the time multiplier for the inverse curve. (Range: 0.01-15.00;
Step: 0.001)
Time Adder—This is the time adder for the inverse curve. (Range: -10.000-100.000; Step:
0.001)
S&C Instruction Sheet 766-530 89