OMICRON 219
Off-service diagnostic methods
Figure 17-37: Grounding switch components
If the grounding switch is closed, the line conductor within the GIS is connected via a grounding shunt
on top of the grounding switch with the GIS housing which has ground potential.
Grounding switches can be insulated or non-insulated. On insulated grounding switches the connection
between the line conductor and the ground connection (housing of the GIS) can be removed.
Figure 17-38: Insulated grounding switch
Non-conducting
material
Grounding shunt
GIS housing
Conductor
Grounding switch
Non-conducting
material
Grounding shunt
GIS housing
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