IG-183-EN version 06; 31/03/2020
7
General instructions
cgm.3 system: medium voltage SF
6
gas-insulated
cubicles up to 38 kV according to IEEE and CSA standards
Description and main characteristics
Each tank has a manometer for checking the gas
pressure, which can easily be seen from outside the
cubicle. The manometer scale is divided into dierent
colors: red, grey and green. For safe operation, the
needle must be in the green zone of the corresponding
temperature band.
Pressure gauge is not intended to be used for telemetry
purposes.
Figure 1.3. Manometer
Includes a padlockable coupling device which allows
the driving mechanism to be replaced regardless of the
position of the switch-disconnector: closed, open or
grounded.
Figure 1.4. Device for coupling the switch
Optionally, the gas tank includes a contact inspection
camera that allow to see on-live through a tablet the
position of the switch - disconnector contacts.
Figure 1.5. Position of the USB connector for contacts inspection camera
Figure 1.6. Position contacts inspection camera
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