GE SF6, Инструкция по эксплуатации

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Maintenance
Electrical contact densimeter threshold inspection
GE Information
08- 2016 L51- 108EN/06
2/8
Preparing the densimeter
Introduction
The densimeter is located at the base of the pole of the circuit- breaker, and
is joined to the SF
6
(or SF
6
+CF
4
) gas volume of the circuit- breaker.
To realize the electrical contact densimeter threshold inspection, it is imperat-
ive to isolate the densimeter volume from the pole SF
6
(or SF
6
+CF
4
) gas
volume.
Process
The table below gives the process to preparing the densimeter:
Step Action Diagram
1
Remove the densimeter
(1), held in place by
screws (8), on the hous-
ing cover (2) of the cir-
cuit- breaker.
x3
8
H M6-20
2
1
2 Remove the screws (14).
x3
14
H M6-20
3 Install the seal (16) on the
connection valve block
(5).
16
5
4 Install the connection
valve block (5) on the
housing cover (2), of the
circuit- breaker, using
screws (8).
2
5
1
x3
14
H M6-20
0,7 daN.m
x3
8
H M6-20
0,7 daN.m
5 Install the densimeter (1)
on the connection valve
block (5) using screws
(14).
NOTE : Before
installing, check the
presence of seals on
the densimeter.