References

Super Heavyweight Construction and Pipelay Vessel SAMPSON

August 01, 2012

Ship characteristics:

  • Length o.a. : 180,0 mtr
  • S-lay : 3 x 125 t 6- up to 48-inch pipe diameter
  • Breadth mld : 32,0 mtr
  • Main Crain : 1.600 t, fully revolving
  • Accommodation : 296 persons
  • Subsea crane : 200 t, active heave compensated
  • Classification : ABS + A1 +(E)+ ICE-CO + AMS + DP3 Special Offshore

EMC scope of supply for the new building:

  • Total electrical design, engineering and installation
  • Supervision and commissioning of electrical installation
  • 8 x Generator sets Caterpillar type 3516C (2200 kW)
  • 1 x Emergency Generator set Caterpillar type 3508B (910 kW)
  • 2 x Main Switchboards 3 x 690V – 60 Hz + 2 x Auxiliary Switchboard 440V – 60 Hz
  • 4 x MCC for engine rooms and pump rooms
  • Emergency switchboard 3 x 440V – 60 Hz
  • 2 x Main switchboard 3 x 230V – 60 Hz + 1 x Main switchboard 3 x 110V – 60Hz
  • 6 x 24 VDC System
  • 6 x UPS systems 230V-60Hz
  • 2 x Transformers 690V/695V (main switchboards) + 2 x Transformers 690V/440V (auxiliary switchboards)
  • 2 x Transformers 440V/230V (lighting switchboards)
  • 2 x Transformers 440V/230V (emergency lighting switchboards)
  • 2 x Starters and motors 1350kW for bow thrusters
  • 2 x Drives and motors 2.4 MW for Retractable thrusters
  • 3 x Drives and motors for 3.3 MW Main propulsion Azimuth thrusters
  • Integrated alarm/PMS/DP3/thruster control System about 2500 I/O
  • Fire detection
  • Complete Bridge and Radio Outfit
  • Additional equipment and internal communication systems
  • Lighting installation + complete electrical installation and equipment 230V

Reference systems,

  • 2x DPS Differential Position System
  • 2x Light Weight Taut Wire System
  • 2x Kongsberg Maritime HiPAP 500 System

EMC scope of supply for the pipelay conversion:

  • Total electrical design, engineering and installation
  • Supervision and commissioning of electrical installation
  • 6 x Generator sets Caterpillar type 3516C (2200 kW)
  • 2 x Main Switchboards 3 x 690V – 60 Hz + 2 x Auxiliary Switchboard 440V – 60 Hz
  • 1 x Pipelay main switchboards 3 x 690V -60 Hz + 1 x Pipelay main Switchboard 440V – 60 Hz
  • 2 x Main switchboard 3 x 230V – 60 Hz
  • 1 x Emergency switchboard (extension) 3 x 440V – 60 Hz
  • 1 x Pipelay main switchboards 3 x 230V – 60 Hz
  • 2 x Pipelay main switchboard 3 x 110V – 60Hz
  • 17 x combined deck distribution boards 440V-230V-110V 60 Hz
  • 4 x 24 VDC System
  • 6 x UPS systems 230V-60Hz
  • 2 x Transformers 690V/695V (main switchboards) + 4 x Transformers 690V/440V (auxiliary switchboards)
  • 4 x Transformers 440V/230V (lighting switchboards)
  • 1 x Transformers 440V/230V (emergency lighting switchboards)
  • 2 x Transformer 440V/110V Pipe tunnel
  • 2 x Drives and motors 2.4 MW for Retractable thrusters
  • Extension of the Integrated alarm/PMS/DP3/thruster control System ,about 1500 additional I/O
  • Fire detection
  • Extension to the Bridge Outfit
  • Additional equipment and internal communication systems
  • Lighting installation + complete electrical installation and equipment 230V

Engineering

Engineering included engineering of the complete electrical package. Special attention was paid to the DP class 3 requirement of redundancy for all important systems in order to prevent that one single failure could cause loss of position during DP operations. Another major item in engineering was the very high short circuit current levels of a 30.8 MW electrical plant at 690V.

Supervision

Electrical installation was carried out under supervision of a team of EMC supervisors. Supervision was carried out in close co-operation with the yard’s team of electrical foremen.

Commissioning

Commissioning was carried out and coordinated by EMC and the complete installation was delivered turnkey in close co-operation with the owner’s team and the shipyard.

Download Sampson The Sampson is a new build diesel electric DP3 offshore vessel.

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