IG-183-EN version 06; 31/03/2020
46
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
5.4.2. Switch-disconnector opening operation
1. Move the actuation shaft access handle to its lower
position.
2. Insert the lever in the actuation shaft and turn
anticlockwise.
3. Remove the lever, the handle returns to its original
position.
4. Verify that the cubicle is in disconnected position.
Figure 5.9. Opening the switch in cgm.3-s
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