IG-123-EN version 11; 23/07/2021
60
Operations sequence General instructions
cpg.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
7.1.4. Busbar riser cubicle (cpg.0-rb)
Figure 7.58. Detail of the busbar riser cubicle's mimic diagram
7.1.5. Busbar earthing operating sequence (cpg.0-pt)
Initial conditions: disconnect all the main busbar
feeder disconnectors.
Connection
1. Insert the lever in the earthing switch's actuating shaft.
Then turn 90º CLOCKWISE. Check that the earthing
switch status indicator shows closed.
Figure 7.59. Earthing switch closing sequence
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