Switch Control Setup
Phase Loss Protection—Team members open their switch based on loss of voltage
on one or two individual phases.
Important: If one of the automatic operation options is selected (on either switch if
applicable), use the faceplate AUTOMATIC OPERATION ENABLE/DISABLE switch or a
SCADA command to disable automatic operation. If the None option is selected (on both
switches if applicable), the control software puts the team member in the Automatic
Operation Disable mode and ignores all commands from the faceplate AUTOMATIC
OPERATION ENABLE/DISABLE switch. Also, Automatic Operation mode cannot be
enabled with a SCADA command.
Important: Total loss of power to the switch control (complete battery discharge and
no ac power) cancels all automatic operations in progress.
Sectionalizing Section
Sectionalizing
When the Sectionalizing mode is set to the Yes setting and the team members recognize
a three-phase voltage outage, they start the Sectionalizer Reset and Extended Voltage
Loss Timer function and begin to count source-side protective operations. If three-phase
voltage returns with no faults detected, the Sectionalizer Reset and Extended Voltage
Loss Timer function resets and the Successful Reclose Reset Timer function starts.
If the source-side protection continues to operate, when the operation count equals the
Recloser Counts to Sectionalizer Trip setpoint, the control will open the line switch.
If the Sectionalizer Reset and Extended Voltage Loss Timer function expires before
the Recloser Counts to Sectionalizer Trip value is reached, the switch control resets
the timer and the counter to zero. If three-phase voltage remains out for the duration of
the Sectionalizer Reset and Extended Voltage Loss Timer operation, an extended
voltage-loss condition exists and the switch control opens the line switch when the
3-Phase Volt Loss Sectionalizing feature is set to the Yes or ITSG Only mode, and
the IntelliTeam system is in the Ready state.
Sectionalizer Reset and Extended Voltage Loss Time (seconds)
The Sectionalizer Reset Timer is started for any of these conditions when:
• An overcurrent event persists long enough to qualify as a fault
• The rst breaker operation after an overcurrent fault registers as a Three-Phase Loss
of Voltage condition the control counts it as the rst breaker/recloser operation of
the sectionalizing sequence.
• A Three-Phase Loss of Voltage condition occurs
• A sectionalizing event occurs and the switch trips open (The control logs an extended
voltage loss, in addition to the sectionalizing event, if three-phase voltage has not been
restored before this timer expires.)
When this timer is not running and the control interprets a three-phase voltage loss as
a breaker operation, it will increment the count of breaker operations to one and start the
timer. When the control has counted the number of breaker/recloser operations equal to
the number required to sectionalize, and this count is reached before the timer expires,
the control will trip open the switch.
When all three phases are continuously below the Loss of Voltage Threshold setting
(configured on the Setup>General>Site-Related screen) for the duration of this timer,
the control will trip open the switch if so configured.
Set the Sectionalizer Reset and Extended Voltage Loss Time setting to 5 seconds
longer than the maximum lockout time for the normal source-side protective device.
This will ensure the loss of voltage is not a temporary condition and the normal source-
side protective device has reached the lockout state. (Range: 0-255; Step: 1; Default: 45)
Successful Reclose Reset Time (seconds)
When three-phase voltage is continuously present without an overcurrent event
for this amount of time (in seconds), the switch control considers the source-
side protective device to have had a successful reclose. When this timer expires,
38 S&C Instruction Sheet 1045-530
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