Storage; Bellows Blocking System And Assembly In The Structure; Bellows Blocking System - GE KOTEF 72.5 Instruction Manual

Combined instrument transformer
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Instruction Manual
Once the transformer is in the vertical
position, it should be moved and
mounted according to the latter figure.
Be careful not to tilt the unit such that
the center of gravity moves beyond any
of the four (4) matched slings. Use a
safety tether. Refer to the nameplate for
weight

3.4. Storage

The units can be stored:
▪ no more than four months after the
CITs left the factory,
▪ in the horizontal position,
▪ on a smooth surface and
▪ within minimum and maximum
ambient temperature as per CIT
specification.
▪ more than four months after the CITs
left the factory,
▪ on a smooth surface,
▪ unpacked,
▪ put in vertical position and
▪ after
blocking device as described in
item 4.
NOTE: The units stored outdoors in
vertical position must be screwed on to
the ground, even if the storage is
foreseen for a short period of time.
4. BELLOWS BLOCKING SYSTEM AND
ASSEMBLY IN THE STRUCTURE

4.1. Bellows blocking system

For
transportation
metallic bellows device is blocked
(secured
from
cushions of synthetic foam slightly
compressed by the top cover. A
© GE Grid Solutions
removal
the
bellows
purposes,
movement)
using
protection of plastic film is also put in
place around the bellows to protect it
against contact with the top cover.
In order to remove the blocking system,
place the transformer in vertical position
on a flat surface.
Remove the bellows blocking device,
following the procedure below:
1) Mark the position of the top cover
with respect to the head of the
transformer with a vertical line
(using a marker, chalk or pencil);
2) Remove the screws that fix the top
cover;
3) Remove the bellows blocking device
and the protection film;
4) Confirm by visual check that the
bellows device is in good condition:
a) Geometry: Top of the bellows is
b) Surface:
TO AVOID DAMAGE TO THE BELLOWS
DEVICE, NEVER SUPPORT ANY MATERIAL
ON THE BELLOWS.
5) Reinstall the Top Cover with care
lining up the vertical marker line with
the
the head of the transformer to
ensure that original fixing position is
maintained.
bellows
movement and in a vertical position.
horizontal (i.e., not tilted due to
possible deformation of the
bellows
convolutions).
distortion and/or asymmetry of
the bellows (i.e., convolutions are
evenly displaced around the
circumference of the bellows)
no
damage
deformation
such
and/or buckling in the bellows
Confirm
is
free
for
No
or
as
dents
that
the
internal
9

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Kotef 245

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