advanced winch technology for extracting oil deep under the sea Case study Vacon is the market leader in Norway in supplying drive sys- tems for electric active heave-compensated (AHC) winches. AHC winch systems are increasingly being deployed for low- ering and lifting equipment to and from the seabed at depths down to 3,000 meters. By compensating for any undulations or heavy sea movements that cause sudden slack or pull on cables, they e

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