IG-123-EN version 11; 23/07/2021
58
Operations sequence General instructions
cpg.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
3. Close the circuit-breaker.
Figure 7.54. Right busbar earthing sequence (iii)
Proceed in reverse order to disconnect the right busbar
earthing.
c. Left busbar earthing operations
1. Close the left earthing switch.
Figure 7.55. Left busbar earthing sequence (i)
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