IG-284-EN version 03; 06/05/2020
42
Recommended sequence
of operations
General Instructions
cgm
.800: Medium-voltage switchgear with integrated insulation in SF
6
gas
up to 36 kV in accordance with IEC Standard with rated current up to 800 A
5.4.7. Cable test
These driving mechanisms allow the operation
of going from earthing switch closed to switch-
disconnector open, even when the cable compartment
cover is open. Thus, the switch-disconnector cannot
be changed to the closed position until this cover has
been put back.
The cable test can only be carried out in
cgm
.800
feeder functions which include B/BM/B2M driving
mechanisms with this characteristic. Please check with
Ormazabal
.
1.
Follow the steps in section “5.4.6. Earthing operation
from the open position”.
2.
Leave the lever in the earthing switch access (yellow
area).
3.
Open the lower cover to access the cable compartment.
4.
With the lever in the earthing switch access, follow
the steps in section “5.4.3. Opening operation from
earthing position”.
5.
Carry out the cable test.
6.
To return to earthing position, follow the steps in section
“5.4.6. Earthing operation from the open position”.
7.
Close the bottom cover to access the cable
compartment.
Summary of Contents for velatia cgm.800
Page 71: ......
