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ABB completes the world’s highest-rated subsea transformer

 

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2009-03-01
ABB completes the world’s highest-rated subsea transformer

ABB’s transformer unit in Vaasa, Finland has recently completed the world’s highest-rated subsea transformer, for delivery to a gas field off the Norwegian coast.

Transformers play an important part in providing power for compressors to boost declining output from oil and gas fields – and the latest 15 MVA/50 kV/6.6 unit is the largest subsea transformer produced so far, and will be installed 400 metres below the waves. The delivery also includes a supply transformer for installation on the platform above. Installation will be carried out using remote unmanned vehicles.

The 20-tonne subsea transformer has passed all its trials and has now begun a year-long series of laboratory tests to confirm its performance and that of the equipment it will power in the extreme conditions it will be expected to operate in.

ABB is the world’s only manufacturer of subsea transformers, and its first unit was commissioned in 1999, following extensive R&D in the field begun in the 1980s. Demand is growing as output from an increasing number of offshore fields around the world begins to decline, and ABB is already at work on a 20 MVA unit, also destined for Norway.

 
 
 

ABB has recently completed the world’s highest-rated subsea transformer and is already at work on a larger design.

 

For more on ABB, see our latest article or www.abb.com.