5
TIT3IM /
January 2019
If the examination of the unit takes place outdoors,
caution should be exercised to protect the unit against factors
that may present further damage.
Transformers that will not be immediately installed and
energized, should be stored in a clean dry environment away
from any environmental airborne contaminants. Transformers
should be stored in such a way not to represent any type of
hazard. Stacking transformers one on top of another without
proper shelving is not permitted.
It is recommended that transformers be stored in a
heated building with uniform temperature and adequate
air circulation to prevent condensation with the protective
plastic wrap still installed for long term storage. If storage in a
heated building is not possible, transformers must be properly
protected from contaminants and moisture preferably in a
non heated building. We recommend that electric heating
be installed inside the transformer to maintain a uniform
temperature above the ambient and to prevent condensation.
In extreme cases they may be stored in temperatures no lower
than -40°C (-40°F). Special care should be given to prevent
the formation of condensation inside the stored transformers.
Units that are to be energized after being stored at a low
temperature or after being stored for a long time must be
warmed to -25°C (-13°F) with warm air or radiant heat. Once
the unit reaches this temperature and its free of condensation
and any other contaminants resulting from the storage process,
it is safe to be energized.
Indoor/Outdoor Transformers with Type 4, 4X or 12
Enclosures.
All three-phase encapsulated transformers are supplied
with standard type 4 enclosure which also meets type 12. Type
4 enclosure offer much greater protection against a variety of
elements such as dust, dirt, snow, moisture, rain etc. Units may
be installed indoors, or outdoors where applicable.
For any outdoor location, the appropriate applicable
codes must be followed including cable installation and
hardware suitable for outdoor service. Before outdoor
installations, verify that adequate site drainage exists to prevent
groundwater from entering the transformers.
Water tight couplings are strongly recommended to be
installed for any holes drilled in the enclosure. When drilling
holes, note the resin level.
Three-phase encapsulated transformers must be installed
in an upright position on walls, floors, posts, beams or other
locations capable of supporting their weight with the proper
accessories attached.
Installation
Storage
Failure to follow storage requirements can result
in death or serious injury, and property damage.
- Deterioration of product
WARNING
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR
ARC FLASH
Failure to follow these Installation instructions and all
applicable local and national codes when installing
and connecting a transformer will result in death or
serious injury and/ or substantial property damage.
Before drilling holes, please ensure
proper clearance is allowed to the resin
for both conduit and conduit nut.
