IG-284-EN version 03; 06/05/2020
44
Recommended sequence
of operations
General Instructions
cgm
.800: Medium-voltage switchgear with integrated insulation in SF
6
gas
up to 36 kV in accordance with IEC Standard with rated current up to 800 A
5.5.3. Opening operation from earthing position
1.
Move the driving shaft access handle to its lower
position.
2. Opening operation:
a. Manual operation
.
Insert the lever in the earthing switch driving shaft,
move the drive arm to the end and press inwards on
the head of the lever with one hand, and turn 90º
anti-clockwise with the other hand.
b. Motorised operation
(BR-A2M driving mechanism).
Activate the corresponding operation command.
Figure 5.20.
Lever turn process
3.
Verify that the cubicle is in isolating position.
Figure 5.21.
Earthing switch open
Summary of Contents for velatia cgm.800
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