IG-183-EN version 06; 31/03/2020
58
Recommended sequence of operations
General instructions
cgm
.3 system: medium voltage SF
6
gas-insulated
cubicles up to 38 kV according to IEEE and CSA standards
5.7.4. Grounding operation from the open position
1.
Move the actuation shaft access handle to its lower
position.
2.
Insert the lever in the grounding switch actuation shaft
and with one hand press on the head of the lever and
with the other hand turn clockwise.
3.
Remove the lever, the handle returns to its original
position.
4.
Verify that the cubicle is in grounding position.
Figure 5.21.
Grounding from open position in
cgm
.3-p
