Patent 8638005 was granted and assigned to Cameron International on January, 2014 by the United States Patent and Trademark Office.
A power supply system, particularly to be used in maritime oil/natural gas production includes at least one data transfer/voltage conversion unit arranged above sea level and one electrical means such as a choke, gate valve, production tree, power control/communication unit and the like arranged below sea level, which are electrically connected via a cable connection at least for power supply.