Jan van der Akker - Subsea UK

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The Medium Future (or nearer) • Increased transmission voltage will lower losses • Use DC/DC converters at distribution layer Basic technology already in use for all electric trees 22 SUBSEA SYSTEMS
More Calculation Examples Generic calculations l (150 W/SCM) • Standard Cameron electrohydraulic (EH) control system architecture • Standard Cameron EH control system equipment • Standard industry power transmission and distribution components • Qualified and field-proven Characteristics Generic Drill Centre Power distribution Dedicated quad No of SCMs 5 Max input power per SCM 150 W Min SCM input voltage 900 VDC EPU output voltage 1200 VDC Typical cable cross Maximum stepout section, sq.mm distance, km 6 54.8 10 92.2 16 146.7 25 232.1 35 322.0 * Note, the calculations are based on a mid-range SCM input voltage of 900 VDC, which integrates a consi<strong>der</strong>able safety margin. Further increase in step-out distances can be achieved through assuming a lower SCM input voltage, i.e., reducing this margin. 23 SUBSEA SYSTEMS
Page 1 and 2: Long step-outs, but avoiding increa
Page 3 and 4: What do we want? Modular power and
Page 5 and 6: What can we offer tomorrow? • Sys
Page 7 and 8: Recent project examples Jack & St.
Page 9 and 10: MCS EPU HPU UTA SCM SDU / SAM SCM S
Page 11 and 12: Communications Distribution: Compar
Page 13 and 14: Power Distribution 13 SUBSEA SYSTEM
Page 15 and 16: Examples of remote switching 15 SUB
Page 17 and 18: Examples of remote switching • Mo
Page 19 and 20: Cross Section Calculations Field sc
Page 21: The Near Future: Higher Power Requi
Page 25 and 26: Summary • High-speed communicatio

Jan van der Akker - Subsea UK

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