Hermatically Sealed Transformers
|URJA is managed by a group
of technocrats having vast and varied experience in
transformer design, development, production, quality control
and servicing. Its modern manufacturing plant with
state-of-the-art manufacturing and testing facilities as per
IS, IEC & ANSI standards, accredited to ISO-9001:2008,
14001:2004, 18001:2007 by Moody International, believing in
producing excellent quality products to its customers.
URJA’s strength lay in good marketing network, stable
customer relationship and commitment to the highest levels
of service and excellence.
Renowned for its flexibility in repair of many different
types and brands of transformers URJA has completed a
multitude of contract for repairs. URJA’s “e-con.tek
Transformers” having Low Loss and High efficiency designs
incorporates more copper, resulting into “Less power
Hermetically sealed transformer is a transformer design
which has no conservator. Here the dielectric insulating
fluid in the transformer tank is completely sealed and is in
zero contact to the atmosphere. The design avoids air in the
transformer tank thereby avoiding sludging and oxidation of
the dielectric fluid.
Hermetically sealed transformers are totally maintenance
free and are particularly suited for use in exposed outdoor
environments such as moisture, salt or dust laden
atmospheres. They are used extensively in chemical plants,
oil and gas terminals where poor accessibility makes regular
maintenance impracticable. Transformers immersed in
synthetic coolants are suitable for use indoors with
adequate ventilation or near to the load center where oil
would not be considered environmentally acceptable.
Normally these type of transformers are accommodated by
devices that measure heat related volume variations. Gas
cushion is used to compensate the volume variation due to
heat. Normally the gas is nitrogen. This gas is thermally
uncoupled from the dielectric liquid.