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Mermaid Podded Propulsion Installed

Sedco Express — the first of a new fleet of DPS3 semi-submersible oil and gas drilling exploration rigs for operation in depths to 8,500 ft. — is the first use of the Mermaid podded thruster drive in an offshore application. Mermaid was jointly developed by Kamewa and Cegelec. The system aboard Sedco Express consists of four sets, each comprising synchronous 7 MW AC motor, pod cubicle and slipping unit, large and small pod domes, 12 pulse synchroconvertor and 11 kV supply transformer.Mermaid units reportedly can reduce required generating capacity by up to 17 percent, and cooling requirements by about 25 percent. Mermaid units are designed to save time and money on the repair and maintenance fronts as well, as the units can be fitted and replaced underwater. Shaft seals and propellers can also be changed underwater. For the project, Cegelec was tasked with a wide range of vessel power and control systems, including the overall power system, the AC drilling package, integrated control system and dynamic positioning equipment. The dynamic positioning (DP) system consists of a thruster, power system and operator interfaces, hydro-acoustic position reference system, DGPS system, anemometer, gyro compasses and vertical reference units for automated control of the vessel's position. The DP system provides joystick manual control of all thrusters.






Pod Propulsion History

ABB Propulsion Package Chosen To Drive World's Largest Cruise Ship
Cenac Repowers Pushboats With Lugger
Coltec Wins $40 M Contract
Diesel-Electric Icebreaker, Rothelstein, Launched At Kvaerner's Helsinki Yard
Ferry Contract Dispute Settled By Legislature
GE Aims To Be Single Source Supplier
Hitachi Zosen Completes VLCC Tohzan
Host Of Factors Conspire To Facilitate Bulk Market Stagnation
Hull Completed On Showboat Branson Belle Louisiana License
Hydro-Propelled Ship Concept Receives Patent
Jefffboat And Aquamaster Design Z-Drive Propelled River Towboat
Marshall Branson Builds OSRV; Building Two Vessels For South Korea
Monohull Orders For Austal
More Than Just A Propeller
MTU Power On lato Fast Ferry Market
New Commercial Fishing Boat: Performance Through New Design
New Rescue Ship Class Fitted With Aquamaster Propulsion
Omnithruster Chosen For 16,000-dwt Chemical Tanker
Peed Demons
Peterson Builders Heads Development Of New Urban Commuter Ferry
Podded Propulsors Gain Wider Acceptance
Propulsion Equipment
Raytheon Wins $ 7 4 Million Navy/Air Force Contract For Combat Ik-aining System
SCANDINAVIA...The Ferry Business Proving Ground
Trinity Delivers Anchor-Handling/Tug Supply Boat
UltraJet Waterjets Available For Diverse Applications
Vessel: Zirfaea Yard: Bodewes Volharding Delivery: 1993
Walter Machine Outfits Casino Vessels With Keel Coolers
Wartsila Engine Unveiling: A New Contender In Hie 320-mm Bore Stakes
Yards, Suppliers Bring High-Tech To The Table
 
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