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https://drivepatents.com/patents/967952 · 29 Oct 2014
A direct electrical heating system for heating a section of a pipeline is provided. A power supply of the direct electrical heating system has a power input for receiving electric power and a power output for supplying AC electric power to the pipeline sec...
https://drivepatents.com/patents/987681 · 7 Aug 2013
A direct electric heating system for heating a subsea pipeline is provided. The direct electric heating system has a subsea feeder unit which is adapted to be installed subsea. The subsea feeder unit comprises electric connections for coupling the subsea f...