12
15kV Class Padmount VisoVac™
instruction manual
MN024004EN April 2021
In this position the vacuum interrupter and the visible
isolation rods are OPEN. The grounding position is OPEN
and the visible isolation between the internal load bus and
the cable is achieved. See
Figure 26
.
WARNING
The ground rods will ground the cables connected to
the bushings on each associated way . Ensure there
is no voltage present before grounding . The cables
connected to all bushings, any control power sources
or stored energy devices such as capacitors must be
de-energized/discharged before gear is considered
de-energized .
Isolation Rod
OPEN
Ground
ROD
OPEN
Source
SW-1
OPEN
Load Bus
Figure 26 . V3 style padmount – Isolation position Open
In this position, the vacuum interrupter and visible isolation
rods are OPEN. The grounding position is CLOSED. This
example assumes all ways are OPEN and internal load bus
is de-energized. See
Figure 27
.
WARNING
The ground rods will ground the cables connected to
the bushings on each associated way . Ensure there
is no voltage present before grounding . The cables
connected to all bushings, any control power sources
or stored energy devices such as capacitors must be
de-energized/discharged before gear is considered
de-energized .
Isolation Rod
OPEN
Ground
ROD
CLOSED
Source
SW-1
OPEN
Load Bus
Figure 27 . V3 style padmount – Grounding position
CLOSED
