REPAIR STRIP AND PROCESS FOR WIND TURBINE LEADING EDGE PROTECTION TAPE

    公开(公告)号:US20200070448A1

    公开(公告)日:2020-03-05

    申请号:US16466143

    申请日:2018-01-02

    Abstract: A method is described for repairing the surface of rotor blades or aircraft wings, comprising (a) a composite substrate; and (b) a protection layer having at least one area of at least partial damage, the method comprising (i) optionally, removing at least part of the damaged part of the protection tape; (ii) optionally, reconstructing the surface of damaged composite substrate; (iii) optionally, applying primer solution to the surface of the composite substrate; (iv) optionally, applying a polymer solution, preferably in at least one organic solvent; (v) applying a repair patch of a polymer onto at least a part of the composite surface; (vi) applying heat so that the repair patch of a polymer tape melts and covers the damaged area, thereby forming a protection layer or applying a repair solution, preferably in at least one organic solvent, so that the repair patch of a polymer tape at least partially dissolves and covers the damaged area.

    Voltage sensing device
    4.
    发明授权

    公开(公告)号:US10338103B2

    公开(公告)日:2019-07-02

    申请号:US15510832

    申请日:2015-09-25

    Abstract: The invention relates to a voltage sensing device (1) for a high and/or medium voltage power carrying conductor (2), the voltage sensing device comprising: a radially outer electrode (3) operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power carrying conductor; a radially inner electrode (2, 6) operable as a second sensing electrode of the sensing capacitor; a dielectric material (5) arranged between the inner and the outer electrode (3, 2, 6), wherein the coefficient of thermal expansion of the material of at least one electrode (3, 2, 6) is selected such that it compensates the temperature dependent parameters of the dielectric material (5) and/or the other electrode (3, 2, 6), that influences the capacity of the voltage sensing capacitor.

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