Alstom FKG1X - Page 133

Installation
Assembly of th
e circuit b
reaker on-
-
site
G31--201EN12
16/20
04--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
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en authority, is
strictly prohibited.
 GRID
Safety instructio
ns
for busbar dielectric test
(IF APPLICABLE)
REMINDER
ALSTO
M
Grid
S.A.
declin
es
all
res
ponsibil
ity
for
dama
ges
res
ulting
from no res
pect of
here abov
e rec
ommendations
Immediate
Te
st
Procedures
If the dielectric test is planned for this phase of installation, it is essential to
follow the
instruction
s
below
.
Procedure with a CT
D
Current transformer
-
-
at
po
we
r
fre
qu
en
cy
up
to
50
kV
RM
S,
ea
ch
se
co
nd
ary
wi
nd
in
g
mu
st
be
ea
r-
thed.
-
-
for a lightning impuls
e, it
is recommen
ded that you dismantle the CT
s and
remove them from the duct.
VT
Procedure
D
Potential transformer(s) with a fuse
It is imperative to :
-
-
remove
the fuse,
-
-
disman
tle the
braid from the
fuse-
-holder on the
circuit breake
r or
discon
-
nector connections,
It is then imperative to :
-
-
place each secondar
y winding in
an earthed and
short-
-circuit configura-
tion.
D
Potential transformer(s) without a fuse
It is imperative to :
-
-
disman
tle the braid linking the P1/H1 (prima
ry terminal) to the PT on t
he
circuit breaker or disconnector.
It is then imperative to :
-
-
place each secondary windin
g in
an earthed and short-
-circuit configur-
ation.
Procedure with
a capacitor
D
 Capacitor
It is imperative to :
-
-
discon
nect and remov
e the capacitor
, together with its braid, from
the cir-
cuit breaker.
Procedure with a
lightning arrester
D
Lightning arrester
It is imperative to :
-
-
discon
nect and remove the lightning arrester
, together with its
braid, from
the circuit breaker.