Open-Source Current Restraint Threshold
This is the current (in primary amperes) above which a
Trip
operation is prevented.
(Range: 0-16,000; Step: 1; Default: 10) The stated maximum is for 15-kV IntelliRupter fault
interrupters; 27-kV and 38-kV are limited to 12,500 amps maximum.
Open-Source Reset Voltage Threshold
This is the percentage of system voltage above which the
Open-Source Voltage
element
is reset. (Range: 5-100; Step: 1; Default: 80)
Open-Source Time to Trip
This is the time (in seconds) the
Open-Source Voltage
element must be below its
threshold for a
Trip
operation to occur. (Range: 0.00-600.00; Step: 0.01; Default: 30.00)
Open-Source Reset Time
This is the time (in seconds) voltage must be present for the
Open-Source Voltage
element to reset. (Range: 0.00-600.00; Step: 0.01; Default: 1.00)
Single-Phasing Protection and Sectionalizing
Specify
No
(default),
Yes
, or
IntelliTeam SG
to enable this element. The
IntelliTeam
SG
mode will cause this element to only be active when the IntelliTeam SG system is in
the
Ready
state.
Zero Sequence Voltage Threshold
This is the percentage of system voltage above which tripping will occur. (Range: 1-100;
Step: 1; Default: 15)
Zero Sequence Current Restraint Threshold
This is the current (in primary amperes) above which a
Trip
operation is prevented.
(Range: 10-16,000; Step: 1; Default: 50) The stated maximum is for 15-kV IntelliRupter
fault interrupters; 27-kV and 38-kV are limited to 12,500 amps maximum.
Negative Sequence Voltage Threshold
This is the percentage of system voltage above which tripping will occur. (Range: 1-100;
Step: 1; Default: 15)
Negative Sequence Current Restraint Threshold
This is the current (in primary amperes) above which a
Trip
operation is prevented.
(Range: 10-16,000; Step: 1; Default: 50) The stated maximum is for 15-kV IntelliRupter
fault interrupters; 27-kV and 38-kV are limited to 12,500 amps maximum.
Unbalance Time to Trip
This is the time (in seconds) the
Voltage Unbalance
element must be above its threshold
for a
Trip
operation to occur. (Range: 0.00-600.00; Step: 0.01; Default: 30.00)
Unbalance Reset Time
This is the time (in seconds) voltage must be present for the
Unbalance Voltage
element
to reset. (Range: 0.00-600.00; Step: 0.01; Default: 1.00)
S&C Instruction Sheet 766-530 105
Protection Setup