Alstom FKG1X - Page 203

Maintenance
Maintena
nce
plan
G51
-
-0
01EN07
6/18
02--2011
© ALSTOM 2010. All rights reserved. Informat
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
ty and
is subject to
change without notice. Reproduction, use or disclosure to
third parties, without express writt
en authority, is
strictly prohibited.
 GRID
Maintenance operation
s of circuit
-
-
breaker
(20000 guaranteed mechanical cycles)
Guide
The
tabl
e
bel
ow
is
a
gui
de
of
the
ope
rati
ons
to
be
carr
ied
out
at
eac
h
main
te-
nan
ce sta
ge
:
MAINTENANCE VISITS
(1 or 2 times a year)
INSPECTION
(every 5 years)
OVERHAUL
(OPER
A
TING TIME
: 20 years)
OVERHAUL
(ELE
CTRIC
AL
WEAR
:
see
“El
ectri
cal
wea
r
limi
ts”,
module
S51-
-051)
OVERHAUL
(MECHANICAL OPERATIONS :
10
000
cycles)
REVISION
for the ventilation (FKG1XP--XV--XW)
(SER
VICE
LIFE:
≥
25,000
hours/fan
)
`
J J
J J
Operation
counter
readin
g.
`
J
J
Overall
inspec
tion
:
appea
rance
(corros
ion,
paint-
work, signs of overheating).
J J J J
Inspect
the
insula
ting
envelo
pes
of
poles.
`
J J
J J
Check
the
condi
tion
of
crank
lever
assembl
y
(axles,
retaining, clips,...).
`
J J
J J
Che
ck
ope
rati
on
of
per
man
ent
hea
ting
.
Che
ck
con
di-
tion of air vents.
`
J
J
J
 Che
ck
SF
6
pre
ss
ur
e,
(if
the
cir
cu
it
br
ea
ke
r
is
su
pp
lie
d
with a permanent pressure gauge).
`
It
is
ad
vi
sa
bl
e
to
pe
rf
or
m
at
le
as
t
2
CO
du
ty
cy
cl
es
pe
r
year,
when apparatus are scarcely used
, in order
to check that circuit--breaker and associated control
circuits are working properly.
`
J J
J
Check
SF
6
densimete
r thresholds. Then adjus
t
pres-
sure to its rated value.
`
J J
J
Measure
operatin
g
times
of p
oles
and
auxili
ary
con-
tacts, at rated voltage and pressure.
`
J J
J
Measure
resistan
ce
of
main
contacts.
J
J
J
Check
tightening
of
parts
not
subjec
ted to
pressu
re
(frame -- deck -- cubicle).
∗
J
J
J
Ch
ec
k
tig
hte
ni
ng
of
lo
w
vo
lta
ge
ter
min
al
s
(
∗
6
mo
nth
s
after
commissi
oning)
.
J
J
J
Check
relay
operation.
J
J
J
Check
latch
operatio
n.
J J J J
Car
ry ou
t oper
atio
ns at re
com
mend
ed du
ties
and
rated
voltage
.
J
J
Cha
nge
doo
rs
sea
ls,
sidepanels
sea
l
and
roo
fs
sea
ls.
Legend : (
J
Compulsory)
(
`
 Recommended)
Continued on next page.