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Instruction Manual
bellow device is in good condition:
a) Geometry: Top of the bellow is
horizontal (i.e. not tilted due to
possible deformation of the
bellows
distortion and/or asymmetry of
the bellows (i.e. convolutions are
evenly displaced around the
circumference of the bellows)
b) Surface:
deformation
and/or buckling in the bellow
TO AVOID DAMAGE TO THE BELLOWS
DEVICE,
NEVER
MATERIAL ON THE BELLOWS.
5) Reinstall the Top Cover with care
lining up the vertical marker line
with the head of the transformer to
ensure that original fixing position is
maintained.
bellows
is
movement and in a vertical position.
The green oil level marker shall be
clearly visible through the window.
6) Tighten the fixing screws. The
threads shall be lubricated with
grease << MOLYKOTE P37>> or
equivalent.
tightened to a maximum torque of
7N.m for screw M6 and 16N.m for
screw M8.
© GE Grid Solutions
convolutions).
No
no
damage
or
such
as
dents
SUPPORT
ANY
Confirm that the
free
for
internal
The screws shall be
Top Cover
Cushions of
synthetic
foam
Protection
film
Bellow
Fix screw
4.2. Assembly in the structure
The combined transformer shall be set
up in vertical position.
It is very important that the surface on
which the Combined Transformer will
be set up is flat (tolerance for no more
than 1mm).
Verify if the four feet are supported on
the structure. If not, it is necessary to
insert a shim before putting the fixation
screws.
Remove the lower lid of black plastic, if
applicable, from secondary terminal
box. It is only used for transport. It
cannot be used as tube guide.
5. CONTACT SURFACES PREPARATION
It
is
recommended
aluminum
contact
sandpaper 150 grain in order to
eliminate the oxidation layer. Scrub the
contact surfaces with a metallic brush
(diameter of the thread 0.3mm) and
impregnate with grease of the type
"PENETROX" or equivalent. All the
to
clean
all
surfaces
with
9
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