17
Recommended sequence of operations
Operation instructions
cgm.
3
ENA type
IG-235-EN version 02
Fig. 2.23:
Closing the cable compartment cover in
cgm.
3-p
10)
Commission the switchgear, following the
instructions in section
this document, which correspond to the opening
operation in the
cgm.
3-p
switchgear.
2.5
cgm.
3-rb
switchgear with earthing
2.5.1
Opening operation from the earthing
position
1)
Move and hold the actuation shaft access lever in
the yellow actuation area to its lower position.
2)
Insert the handle in the earthing switch actuation
shaft and turn anticlockwise.
3)
Remove the handle. The lever returns to its original
position.
4)
Verify that the switchgear is in open position.
Fig. 2.24:
Opening operation from earthing position in
cgm.
3-rb
with earthing
2.5.2
Earthing operation from the open
position
1)
Move and hold the actuation shaft access lever in
the yellow actuation area to its lower position.
2)
Insert the handle in the earthing switch actuation
shaft and turn clockwise.
3)
Remove the handle. The lever returns to its original
position.
4)
Verify that the switchgear is in earthing position.
Fig. 2.25:
Earthing from open position in
cgm.
3-rb
with
earthing
2.6
cgm.
3-v
switchgear with driving
mechanism A(M)V-EF and
RA(M)V-EF (3G)
2.6.1
Opening operation from the earthing
position
Initial conditions:
Earthing switch closed, circuit breaker
closed and springs charged.
1)
Open the circuit breaker by pressing the “0” opening
button on the front push-button and check the
status indicator.
2)
Check that no voltage is present using the
ekor.
vpis
unit.
3)
Move and hold the access lever in the yellow
actuation area to its lower position.
4)
Insert the handle in the earthing switch actuation
shaft and turn anticlockwise.
5)
Remove the handle. The lever returns to its original
position.
