Operations sequence
General instructions
31
cpg.1
GIS-type medium-voltage switchgear with full insulation in gas, up to 38 kV,
in accordance with IEEE Standards
IG-197-US version 02; 07/11/2019
7.3.1 Busbar coupling
Initial conditions: busbar disconnectors open,
grounding disconnectors open and circuit breaker
open.
1. Connect the right busbar disconnector by turning the
lever clockwise.
Figure 7.11
Condition after turning the lever
2. Then connect the left busbar disconnector by turning
the lever clockwise.
Figure 7.12
Condition after turning the lever
3. Finally, close the circuit breaker by acting on the top
pushbutton.
Figure 7.13
Condition after pressing the “I” pushbutton
To uncouple the busbars, reverse the sequence of
operation. Act on the bottom pushbutton to open
the circuit breaker.
Summary of Contents for velatia cpg.1
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