IG-123-EN version 11; 23/07/2021
40
Operations sequence
General instructions
cpg
.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
b. Manual earthing switch operation
The EARTHING SWITCH manual driving lever is
identifi ed in YELLOW in the symbol area.
Figure 7.5.
Details of the earthing switch's
manual driving lever
Connection
Move the access interlock down to the driving shafts and
insert the lever with the disconnector open symbol aligned
with the “I” in the earthing switch operation area (yellow).
Then turn 135º CLOCKWISE.
Figure 7.6.
Earthing switch closing sequence
Disconnection
Move the access interlock down to the driving shafts
and insert the lever with the disconnector closed symbol
aligned with the “I” in the earthing switch operation area
(yellow). Then turn 135º ANTI-CLOCKWISE.
Figure 7.7.
Earthing switch opening sequence
Summary of Contents for velatia cpg.0
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