Storage; Anchoring; Contact Surfaces Preparation - GE OTCF Instruction Manual

Instruction Manual
Mounting on the pedestal

2.4. Storage

Transformers can be stored packed
vertically on a homogeneous surface.
Equipment
NOTE:
exposed to the environment, without
packaging, must be screwed to the
ground (flat and stable surface), even if
the storage is of short duration.
- It is not allowed to store
equipment horizontally.

3. ANCHORING

The transformers must be energized in an
upright position. It is important to confirm
that the surface on which the CVT is to be
fixed is flat (tolerance at most 1mm). Check
that all four feet are fully supported on the
frame. If not, insert shims before fastening
the screws.
Tank anchoring to the pedestal must be done
using 4 (four) screws. The dimensions of the
© GE Grid Solutions
stored vertically
holes and the thickness of the anchoring
point can be found in the dimensional
drawing.
When a complementary base is supplied, the
tank must be mounted on this base and the
base anchored to the pedestal.
IMPORTANT: Never support ladders on the
equipment for interventions at heights. Use
appropriate equipment that provides safety
to the user.
Anti-corona rings are provided only for
certain BIL values and radio interference
voltage requirements. When supplied, it is
necessary to mount the corona-ring above
the flange of the upper module as shown in
the figure below. The anti-corona ring is
transported in the same package as the CVT.
Confirm in the set of CVT drawings if anti-
corona ring is applicable or not. Applicable
bot torque: 3,5 kgf .m (35 Nm).

4. CONTACT SURFACES PREPARATION

It is recommended to clean all aluminum
contact surfaces with sandpaper 150 grain to
eliminate the oxidation layer. Scrub the
contact surfaces with a metallic brush
(diameter of the thread 0,3mm) and
impregnate with grease
"PENETROX" or equivalent. All the surfaces
must be completely covered with grease.
For silver or tinned contacts, only clean (do
not use sandpaper) and polish the side of the
aluminum. Cleaning silver or tinned surfaces
of the type