15
Recommended sequence of operations
Operation instructions
cgm.
3
ENA type
IG-235-EN version 02
2.4.6
Fuse replacement sequence
If any of the three fuses blows, the switch-disconnector (A)
will open automatically; this is indicated by the red fuse
status indicator (B) located on the front of the driving
mechanism compartment.
Fig. 2.15:
Fuse tripping indication in
cgm.
3-p
In order to replace the fuses, the following procedures
must be followed:
1)
Close the earthing switch (C).
2)
Remove the cable and fuse compartment access
cover by pulling the handle (D) up.
Fig. 2.16:
Opening the cable compartment cover
3)
Pull up the handle on the fuse holder cover until the
locking clip is unhooked and then pull sharply
outwards to open the fuse holder.
Fig. 2.17:
Opening the fuse holder
4)
Remove the fuse holder carriage by pulling it
outward.
Fig. 2.18:
Removing the fuse holder carriage
As an option, an auxiliary blown fuse indication for
any of the three fuses is also available.
More precisely, it consists of a normally open
contact plus a normally closed contact
(1NO + 1NC) for auxiliary circuits such as an
illuminated indication showing that any
of the fuses has blown.
