IMFEC12 ABB Bailey distributed control system industrial DCS module card

Description

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ABB Ability TXpert development
Starting from a blank sheet of paper, an open
innovation process was begun in ABB that
eventually generated a development roadmap
based on market segment needs and trends. This
roadmap led ultimately to the launch of the new
digital distribution transformer, the TXpert →1-2.
At every step of the TXpert development, design
and manufacturing decisions were made with
the customer’s perspective and expectations
regarding engineering, operation, maintenance,
etc. firmly in mind.
Which measurements provide vital information?
Customers expect distribution transformers to last
for 25 to 30 years; any new additions to the product
line should do so too. The question then arises as to
which parameters, if they were measured directly,
would provide vital information about the asset and
electrical supply quality – and which sensors best
measure these parameters. Given the conservative
nature of the industry, only sensors designed for, and
used in, harsh environments and with excellent field
reliability were considered. The sensors finally picked
are from mature industries and are expected to last
longer than the transformer itself. The sensors chosen
are for top oil temperature, ambient temperature,
pressure, moisture, hydrogen, voltage and current,
plus two measurements for the oil levels.
Data capture and analysis
Every 10 seconds, 14 sensor values of TXpert key
operating parameters are recorded and timestamped. This data is stored fully encrypted for
20 years in appropriately dimensioned memory.
Customers reported that data quantities can be
overwhelming over time, so advanced analytics
integrated directly into the distribution transformer
process much of the raw data to produce insights
that allow the customers to take suitable action →3.
The current TXpert release conducts two analytics:
• Consumed life of the distribution transformer,
which informs the customer how old the
transformer is, based on its specific operating
conditions.
• Total harmonic distortion (THD), which indicates
the quality of the grid around the distribution
transformer.