IG-123-EN version 11; 23/07/2021
55
General instructions
cpg.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
Operations sequence
7.1.3. Busbar coupling function operating sequence (cpg.0-c)
The following sequences are based on the instructions
given for the feeder disconnector and circuit-breaker
operation in the sections above.
Initial situation is understood as referring to the
situation in which all the feeder disconnectors and the
circuit-breaker are open for the di erent operations.
a. Busbar coupling operations
1. Close the right feeder disconnector.
Figure 7.49. Busbar coupling sequence (i)
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