Storage; Installation Precautions - HPS EnduraCoil 1.2 KV Manual De Instrucciones

Storage

WARNING
Failure to follow storage requirements can result in
death or serious injury, and/or substantial property
damage.

Installation Precautions

WARNING
Failure to follow installation precautions can result
in death or personal injury and can damage the
transformer or enclosure.
SHIPPING
ANGLES
FIGURE 9
ANTIVIBRATION PADS
(IN FINAL LOCATION)
FIGURE 10
JACKING LOCATIONS ON EITHER
SIDE OF BOTTOM CHANNELS
ANTIVIBRATION PADS
(SHIPPED WITH TRANSFORMER)
ROLLING AND SKIDDING BASE
Transformers must be stored in a warm, dry location, free
of dust or airborne contaminants. The relative humidity to
which the insulating materials are exposed should be kept as
low as practical. It is preferred to store the transformer in a
warm dry location to avoid moisture issues but may be able to
be stored in temperatures to -20°C (-4°F). Transformer may
be energized when the coil temperature is as low as -20°C
(-4°F) but it is recommended they not be loaded until the
coils reach 0°C (32°F). Fluctuating temperatures can cause
condensation requiring a Dry-Out procedure. The floor on
which the transformer is stored should be impervious to the
upward migration of water vapor. Take precaution to guard
against water from any source such as roof leaks, broken
water or steam lines, windows, etc. It is not recommended
that dry-type units be stored outdoors. If that is unavoidable,
transformers must be properly protected from snow, rain,
and other elements. Protection should include an initial
wrap of first quality canvas with a final outside covering
of plastic tarpaulin. It would also be desirable to include a
desiccant such as a silica gel dry-out system to reduce the
moisture content inside the assembly. If transformers are
stored outdoors, dry-out is recommended before energizing as
described on the following page.
1. It is recommended that anti-vibration pads or other
vibration isolation devices be present when installing
dry-type transformers. Rubber anti-vibration pads are
provided with the transformer and need to be installed
on site. When installing the anti-vibration pads beneath
transformer base beam, ensure the transformer is lifted by
the core & coil only (refer to "Lifting Procedures"). If the
enclosure is provided and attached to the core & coil by
shipping angles, make sure that the shipping hooks and
shipping angles are removed in all locations (see figure
9 and 10) before lifting the transformer by core & coil
only to install the anti-vibration pads (or other vibration
isolations required per design).
2. Cable type, size and entry location shall conform to Local
Electrical Codes.
3. Terminals and terminal board shall not be used to support
the weight of the line or load cables.
4. Maintain the appropriate clearance between supply cables
and live parts of transformer based on system voltages.
(refer to Field Testing)
5. Use of flexible connectors for bus connections is
recommended.
6. It is recommended that the supply or load cables come
in or exit from the bottom or side and shall not block
ventilation openings.
continued on following page
7
IOMGCAS / May 2014