GE SF6 - Page 135

Installation
Pre- filling with SF
6
gas at 0.05 MPa
GE Information L31- 960EN/04
3/4
02- 2017
Pre- filling with SF
6
gas
Process
The table below gives the steps of the pre- filling with SF
6
gas operation :
Step Action Comment/Diagram
1 Remove the valve cap (5) of the
filling tool (4).
5
4
2 D Open the SF
6
gas bottle tap (9).
D Open and close the cock (11) of
the pressure reducer to eliminate
any air inside the tube (12)
(approx. 3 s at low flow- rate).
D Close the SF
6
gas bottle tap (9).
9
11
12
Open
Closed
SF
6
3 Connect the tube (12) to the filling
tool (4).
12
4
4 Open the SF
6
gas bottle tap (9)
and adjust gas output by acting on
the cock (11) of the pressure
reducer (reduced flow rate).
D Close the tap (9) from time to
time to check pressure on the
gauge (13).
D Start filling again until the
required pressure about 0.05 MPa
is reached.
D Close in this order : the tap (9),
then the cock (11).
9
13
Open
11
SF
6
Closed
END OF PROCEDURE