S&C Instruction Sheet 466-500 15
Operation
Understanding the LED Indicators and
POSITION Indicator
LED Indicators
Two LEDs are on the base of the VacuFuse II interrupter.
See Figure 8.
The CHARGING LED is white and indicates the
VacuFuse II interrupter is harvesting energy to close the
vacuum interrupter. When the VacuFuse II interrupter
is powered, the CHARGING LED will start flashing at
one flash per second as long as voltage is in the cutout
mounting and the vacuum interrupter is open. When full
charge is achieved, the CHARGING LED will continue
flashing, the READY TO CLOSE LED will illuminate, and
the CHARGING LED will keep blinking.
NOTICE
At least 3 .5 amperes of primary current must be
flowing through the VacuFuse II Self-Resetting
Interrupter to power the control from its
Sleep state .
When powered, the control will remain powered if
the transformer primary current does not fall below
3 .5 amperes . If less than 3 .5 amperes of primary
current are present, the VacuFuse II Self-Resetting
Interrupter will still respond properly to fault current .
POSITION Indicator
The POSITION indicator is located on the base of the
VacuFuse II interrupter’s housing. It is a highly reflective
visible red or green target that indicates the mechanical
position of the vacuum interrupter inside the VacuFuse II
Self-Resetting Interrupter. The target is green when the
vacuum interrupter is in the
Open
position and red when
the vacuum interrupter is in the
Closed
position. See
Figure 9 and Figure 10 on page 16.
POSITION indicator
in the Open (green)
position
Figure 9. The vacuum interrupter in the Open position.
CHARGING
LED
Figure 8. The LEDs on the base of the VacuFuse II
interrupter.
READY TO
CLOSE LED