INNPM12 ABB Bailey distributed control system industrial DCS module card

Description

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The future is bright for dry-type transformers
The need to improve environmental and personal
safety, motivates ABB to continually expand the
limits of dry-type technologies. In 2010, ABB
increased the power and voltage limit of drytype transformers to sub-transmission up to
72 kV / 63 MVA →5. Today, there are dozens of
installations around the world that benefit from
these increased ratings in utility for urban power
transmission and rail traction infrastructure.
Global trends in urbanization and environmental
awareness have incited ABB to aim for superior
results in dry transformer technology. In 2016,
ABB successfully tested a prototype of a dry-type
transformer for sub-transmission up to 145 kV /
62 MVA, thereby meeting safety standards and
ensuring environmental integrity. Such power
systems feed higher voltage directly to the main
load centers; higher power is achieved at reduced
distribution loss. The current challenge is to develop
an accompanying dry-type on-load tap-changer –
a necessity for higher voltage classes [8].
ABB is also investigating new ways to increase the
monitoring capacity of dry-type transformers to
be more like that of existing oil-filled units.
In 2018, ABB is scheduled to release the ABB Ability
TXpert™ digital dry-type transformer. Using the
ABB Ability TM platform technology, this transformer
will have increased capabilities to monitor the
power quality at the unit, provide advanced
warning of any abnormal system occurrences,
monitor fan function and control, and provide flood
water damage alerts. These features will allow
users to obtain a more accurate understanding
of the transformer life cycle status and prevent
unnecessary outages.
Overall, there are millions of dry-type transformers
in operation worldwide. Currently, ABB produces
more than 40,000 units each year and offers
its customers, oil-free transformer solutions
with primary voltages through 72.5 kV built in
accordance with major standards such as IEC and
ANSI. The expansion of ABB’s transformer portfolio
to include a variety of dry-type transformers
provides customers with innovative solutions
to meet their unique power needs without
relinquishing environmental or human safety. l