S&C IntelliRupter PulseCloser User Manual

Negative Sequence
The Negative Sequence element trips the IntelliRupter fault interrupter when the
negative sequence component of the three-phase elements exceeds the pickup value for
the time value set by the Inverse Curve or Denite Time settings.
Negative Sequence Check box—Select to congure this element.
Inverse Segment—Select from the drop-down list of inverse-curve names or select
the None option. When the None option is selected, only the Denite 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) dening 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: 0.01)
Time Adder—This is the time adder for the inverse curve. (Range: -10.000-100.000;
Step: 0.001)
Low 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 Denite Time 1 element, and the Denite Time 2 element. (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.
Reset—Select the reset method for the inverse curve from the drop-down list:
D/T (Denite Time) or E/M (Electromechanical) mode.
Reset Time—If the Denite Time reset mode is selected, enter the time delay for the
reset (in seconds). (Range: 0.000-600.000; Step: 0.001)
Denite Time 1 Min. Trip—This is the current (in primary amperes) at which the
Denite 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.
Denite Time 1 Min. Time—This is the time delay (in seconds) after which the Denite
Time 1 element trips. (Range: 0.000-600.000; Step: 0.001)
Denite Time 2 Min. Trip—This is the current (in primary amperes) at which the
Denite 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.
Denite Time 2 Min. Time—This is the time delay (in seconds) after which the Denite
Time 2 element trips. (Range: 0.000-600.000; Step: 0.001)
High Current Lockout
Select this check box to specify the High-Current Lockout level (in primary amperes).
No testing is performed at current above this level. (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. Also see the Maximum Interrupting Current setting on
the Setup>General>Site-Related>System screen.
S&C Instruction Sheet 766-530 71
Protection Setup

S&C IntelliRupter PulseCloser Specifications

General

Brand	S&C
Model	IntelliRupter PulseCloser
Category	Industrial Electrical
Language	English