IG-310-EN version 01; 31/03/2021
79
General instructions
cpg
.0 lite: GIS medium-voltage switchgear,
gas insulated, up to 24 kV,
in accordance with IEC Standard
Operations sequence
7.3.6. Left busbar earthing opening operation
Starting position:
circuit-breaker CLOSED, spring
charging status indicator shows UNCHARGED,
top feeder disconnector OPEN, bottom feeder
disconnector CLOSED, top earthing switch CLOSED,
and bottom earthing switch OPEN.
Check that the SF
6
level is correct before starting the
operation
1.
Open the circuit-breaker. Press the "O" pushbutton. The
circuit-breaker status indicator shows OPEN.
Figure 7.114.
Circuit-breaker open
2.
Open the bottom feeder disconnector.
a.
Move its selector switch to the right, to feeder
disconnector position.
Figure 7.115.
Selector switch in feeder disconnector position
Summary of Contents for cpg.0 lite
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