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    Offshore System Comprising a Dynamic Submarine Power Cable
    3.
    发明公开
    Offshore System Comprising a Dynamic Submarine Power Cable 审中-公开

    公开(公告)号：US20240014643A1

    公开(公告)日：2024-01-11

    申请号：US18346366

    申请日：2023-07-03

    申请人： NKT HV Cables AB

    发明人： Erik Eriksson ,  Ola Thyrvin ,  Andreas Tyrberg ,  Joel Johnsson

    IPC分类号： H02G9/12 ,  H02G15/007 ,  H02G3/03

    CPC分类号： H02G9/12 ,  H02G15/007 ,  H02G3/03 ,  H01B7/14

    摘要： An offshore system including: a dynamic submarine power cable, a bend stiffener having a lower end and a top end, the bend stiffener having a central channel extending from the lower end to the top end, the central channel receiving the dynamic submarine power cable with a radial spacing between an inner surface of the central channel and an outer surface of the dynamic submarine power cable along the length of the dynamic submarine power cable arranged in the bend stiffener, the radial spacing forming a longitudinal water channel between the bend stiffener and the dynamic submarine power cable, and an offshore structure tube connected to the bend stiffener, wherein the offshore structure tube has an inner tube channel in fluid communication with the longitudinal water channel, and wherein A) the offshore structure tube has a through-opening extending from the inner tube channel through a wall of the offshore structure tube to enable water flowing from the lower end through the bend stiffener to exit the offshore structure tube via the through-opening to provide water cooling of the dynamic submarine power cable in the bend stiffener, or B) the bend stiffener has a radial through-opening arranged within ¼ of a total axial length of the bend stiffener, defined by a distance between the lower end and the top end, from the top end to enable water flowing from the lower end through the bend stiffener to exit the bend stiffener via the radial through-opening to provide water cooling of the dynamic submarine power cable in the bend stiffener.

    Estimating The Thermal Resisitivity Of Soil Surrounding An Underground Cable
    4.
    发明公开
    Estimating The Thermal Resisitivity Of Soil Surrounding An Underground Cable 审中-公开

    公开(公告)号：US20230152260A1

    公开(公告)日：2023-05-18

    申请号：US18054755

    申请日：2022-11-11

    申请人： NKT HV Cables AB

    发明人： Ola Thyrvin ,  Vilhelm Rydén

    IPC分类号： G01N25/18 ,  G01N33/24

    CPC分类号： G01N25/18 ,  G01N33/24

    摘要： The invention is concerned with a method, arrangement, computer program and computer program product for estimating the thermal resistivity of soil surrounding an underground cable. The arrangement comprises a thermal resistivity estimating unit that obtains a first temperature (Ts) from a first temperature sensor at an exterior surface of the cable, obtains a second temperature (Ta) from a second temperature sensor placed in the soil at a distance from the cable, obtains a measurement of current (Ic) transmitted in the cable and estimates the thermal resistivity of soil based on the first and the second temperatures (Ts, Ta) as well as on the current measurement (Ic).