Alstom FKG1X - Page 223

Maintenance
Replac
ing
the
electr
ical contact
densim
eter
G51
-
-1
61EN02
2/4
02--2011
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ion contained in
this document is indicative only. No
representati
on or
warrant
y is
given or should
be
relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is
provided without liabili
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is subject to
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en authority, is
strictly prohibited.
 GRID
Removing the densimeter
Process
The
table
below
gives
the
steps
of
removin
g
the
densime
ter
:
Important
information
The densimeter has been checking
and its volume is isolated from the
pole SF
6
gas volume.
(see module ...51--101)
S
t
e
p
A
c
t
i
o
n
D
i
a
g
r
a
m
1
D
Disconnect the cable (22) of
the densimeter (2).
2
22
G
A
S
2
D
Press o
n the va
lve of the
fill-
ing tool (14), venting to atmo-
spherethevolumeofthedensi-
meter.
14
3
On
ce
ve
nt
in
g
to
at
mo
sp
he
re
is
fini
she
d
:
D
Replace the valve--cap (15)
on the filling tool (14).
D
Remove the filling tool (14).
14
10
15
4
R
ei
n
st
al
l t
he
pl
u
g (
10
),
a
pp
ly
-
in
g
a
ti
gh
te
ni
ng
to
rq
ue
o
f
4
daN
.m,
 lea
k
tig
htn
es
s
is
only guaranteed if this con-
dition is
respe
cted
.
5
D
 Un
scre
w
and
Rem
ove
the
de
n
si
me
te
r
(1
)
of
th
e
SF
6
checkin
g block
(2).
D
 Re
mo
ve
an
d
de
str
oy
se
al
(23).
1
23
2