Improved power system function and performance to fulfill the new marine class requirements
ABB, the leading power and automation technology group, has secured a landmark offshore marine industry contract covering electrical power and propulsion systems onboard a DP class 3 Drill Ship to be conferred with ‘Enhanced Reliability’ and DYNPOS AUTRO notation from Det Norske Veritas(DNV).
The contract covers installations onboard a ‘BT-UDS’ dynamic positioned ultra-deep water drill ship ordered by Sigma Drilling, the joint venture between Norway’s Skeie Technology and Houston-based Vantage Drilling, from STX Offshore & Shipbuilding. The vessel, to be built at South Korea’s STX Jinhae yard, is scheduled for delivery in the second half of 2015.
The new DYNPOS ER class notation for Enhanced Reliability from DNV recognizes advances made in flexibility, redundancy and fuel-efficiency in the structuring of DP systems. The notation covers connected power systems with standby start-up capabilities in specific conditions and the seamless and redundant change-over of generators and thrusters, via closed bus ties.
To meet DYNPOS ER and the DYNPOS AUTRO with closed ring requirements, the Sigma Drilling ship will feature ABB’s most advanced protection devices; fast bus communications based on IEC 61850 standards and integrated blackout prevention functions. DYNPOS ER has specific requirements for operational flexibility and the safe operation of the power and thruster plant onboard.
ABB is supplying a comprehensive package of power & propulsion plant and preventive maintenance systems onboard, including generator sets, switchboards, thruster motors, thruster drives, the drilling drive systems, Diesel Generator Monitoring System (DGMS) and Remote Diagnostic System (RDS).
Source: ABB
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