IG-123-EN version 11; 23/07/2021
59
General instructions
cpg.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
Operations sequence
2. Close the right earthing switch.
Figure 7.56. Left busbar earthing sequence (ii)
3. Close the circuit-breaker.
Figure 7.57. Left busbar earthing disconnection sequence (iii)
Proceed in reverse order to disconnect the left busbar
earthing.
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