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: 0-600; Step: 0.0; Default: 30.00)
Open-Source Reset Time
This is the time (in seconds) good voltage must be present for the
Open-Source Voltage
element to reset. (Range: 0.-600; Step: 0.01; Default: 1.00)
Single-Phasing Protection and Sectionalizing
Specify the
Yes
,
No
(default), or
IntelliTeam SG
option to enable this element.
The
IntelliTeam SG
setting causes 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 a
Trip
operation 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 models are limited to 12,500 amps maximum.
Negative Sequence Voltage Threshold
This is the percentage of system voltage above which a
Trip
operation 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 models 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) good voltage must be present for the
Voltage Unbalance
element to reset. (Range: 0-600; Step: 0.01; Default: 1.00)
Trip on Single Phase Voltage
Specify the
Yes
,
No
(Default), or
IntelliTeam SG
option to enable this element.
The
IntelliTeam SG
setting causes this element to only be active when the IntelliTeam
SG system is in the
Ready
state.
Single Phase Low Voltage Threshold
This is the percentage of phase voltage below which a
Three-Phase Trip
operation will
occur. (Range: 5-100; Step: 1; Default: 75)
94 S&C Instruction Sheet 766-530
Protection Setup