Installation
Filling with SF
6
gas
L32--007EN/01
2/8
07--2002
E ALSTOM
Filling with SF
6
gas
Filling pressure
calculation
Calculate the SF
6
gas filling pressure inaccordance withthe temperatureand
the local atmospheric pressure.
Filling is carried out to calculated pressure plus 0.
01 MPa.
See the module “SF
6
gas monitoring” (Calculation of the filling pressure at
site).
Process
The table below gives the steps of the filling with SF
6
gas operation :
7
11
Open
Closed
9
SF
6
Step Action Comment
1 Open the SF
6
gas bottle tap (7)
and adjust gas output by acting on
the cock (9) of the pressure reduc-
er (reduced flow rate).
Close the tap (7) from time to
time to check pressure on the
gauge (11).
2 Start filling again until the re-
quired pressure is reached.
3 Close in this order : the tap (7),
then the cock (9).
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