IMSED01 ABB Bailey distributed control system industrial DCS module card

Description

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ABB specialists interpret data from the
transformer and provide services
Once APM triggers an alarm or recommends an
action, for specific and complex cases, ABB experts
can help make good use of the data collected by
online monitoring sensors, as well as the output
of asset management software, to analyze the
condition of certain transformers or transformer
fleets. The combination of this data with the
design data, the information in ABB’s installed
base system, the results of oil analysis, condition
assessments and the maintenance history provides
ABB with a 360-degree view of a transformer fleet.
This insight plays a pivotal role for ABB in the
condition assessment process [4].
ABB has access to design knowledge worldwide
and original designs for more than 30 legacy
brands. Also, all new ABB transformers are built
using the same design concept, which incorporates
standardized, service-proven components, thus
ensuring an efficient service out in the field. Expert
assessment is not only important for minimizing
the risk of failure and extending lifetime but also
for providing valuable information for initiating
maintenance or repair work should a problem occur,
resulting in shorter downtimes.
Historical review
ABB has a plethora of data on the transformer
installed base. This data is continuously updated,
eg, current owner details and history. The system
provides an important basis for the proactive
detection of problems. For example, one analysis
revealed a potential cooler problem in about 700
transformers in the installed base. The search
focused on 10 to 600 MVA transformers that were
over 20 years old and had oil- and water-type
coolers. Some had failed due to leakages in these
cooling systems and one such failure resulted in
significant revenue loss for the operator. Using
installed base data, operators were contacted
proactively and advised to carry out regular checks.
Training and consultancy
ABB experts also provide on-site or off-site training
in transformer technical specifications, design,
manufacturing, quality and factory acceptance
tests, testing, diagnosis, online monitoring and
asset management systems as well as spare parts,
maintenance, repair, upgrade and replacement –
including safety, environmental aspects
and economics.
Inspection robot
Troubleshooting sometimes involves draining the
transformer oil so a specialist can gain access. This
procedure involves a significant outage, risks and
expense. However, ABB has now developed TXplore –
a remotely controlled inspection “submarine” –
to do this job →5. This automated inspection tool
eliminates the need to put a human at risk and
expose the transformer’s internal structure to
external contaminants