Figure 78. The
Setup>Protection>Closing Profile 1>Voltage and Frequency>Voltage Trip
screen.
Follow these steps to configure the
Loop Restoration
mode for a normally open feeder
configuration:
STEP 1.
On the
Setup> Restoration>Loop
screen, enable the
Enable Loop Restoration
setpoint for the desired General Profile. See Figure 76 on page 132.
STEP 2.
Select the direction(s) that will use
Loop Restoration
mode with the
Direction
setpoint on the
Setup>Restoration>Loop
screen.
STEP 3.
Select the
Open
state for the
Normal State
setpoint on the
Setup>Restoration>
Loop
screen.
When
Loop Restoration
mode is making a decision to close and restore the feeder,
it uses the profile and test sequence programmed at the
Setup>Restoration>Loop>Loop
Restoration Test Sequence
screen. See Figure 76 on page 132.
If voltage is lost on either side of the IntelliRupter fault interrupter for the configured
Time Delay Before First Test
setpoint and the IntelliRupter fault interrupter is in the
Loop Restoration
mode
Ready
state, it will close.
Note:
Voltage must also be below the
Backfeed Voltage Level
setpoint for
Loop
Restoration
mode to qualify it as a voltage loss. This setpoint is on the
General>
Site-Related>System
screen. The default value is 10%. See Figure 6 on page 19. If volt-
age goes above the
Backfeed Voltage Level
setpoint while timing on the
Time Delay
Before First Test
setpoint, this timer is reset.
Normally Open
Configuration
There are two closing profiles; the second closing profile can be initiated by
SCADA, an IntelliLink command, or by pulling down on the manual CLOSE lever
twice. In most cases, the second closing profile is setup to not use PulseClosing
Technology when closing (hard close).
STEP 13.
Match the
Voltage Indication
settings in the
General Profile
mode for both
Closing Profile 1
and
Closing Profile 2
modes. See Figure 78.
134 S&C Instruction Sheet 766-530
Loop Restoration