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    • 2. 发明申请
    • SYSTEM FOR POWER SUPPLY TO SUBSEA INSTALLATIONS
    • 供电给SUBSEA安装的系统
    • WO2006075913A1
    • 2006-07-20
    • PCT/NO2005/000480
    • 2005-12-23
    • STATOIL ASABØRNES, Atle, HaraldRAMBERG, Rune, Mode
    • BØRNES, Atle, HaraldRAMBERG, Rune, Mode
    • E21B37/00E21B36/00E21B43/01E21B43/24F16L53/00
    • F16L1/123E21B43/01F16L53/37H05B3/58
    • A system for power supply to subsea installations and plants for production of hydrocarbons, comprising a preferably heat insulated pipeline (10), in which the possibility for internal formation of detrimental hydrates or wax deposits are present, and comprising electrical power supply cables (12, 31) for direct electrical heating of the pipeline (10), and having an electrical connection (36) to the surrounding sea at an end of the supply cable. The power supply cable (12) is further configured, in a second circuit configuration, to provide a three-phase power supply to an electrically powered motor in an subsea installation unit (11) connected to the pipeline (10), and that means (18, 19) are arranged for switching so that the three conductors (28) forming the power supply cables (12) form parallel conductors in a second circuit configuration, wherein the power supply cables (12, 31) supply power for direct heating of the pipeline (10).
    • 一种用于向海底设施供电并用于生产碳氢化合物的设备的系统,包括优选的隔热管道(10),其中存在内部形成有害水合物或蜡沉积物的可能性,并且包括电力供应缆索(12, 31),用于对管道(10)进行直接电加热,并且在供电电缆的一端具有到周围大海的电连接(36)。 电源电缆(12)还被配置成第二电路配置,以在连接到管道(10)的海底安装单元(11)中向电动马达提供三相电源,并且意味着( 18,29)被布置成用于切换,使得形成电源电缆(12)的三个导体(28)在第二电路配置中形成并联导体,其中电源电缆(12,31)供电以直接加热 管道(10)。