Provided is a rotor blade of a wind turbine, wherein the rotor blade includes a trailing edge section with a trailing edge and a leading-edge section with a leading-edge, a root section with a root and a tip section with a tip, a shell which defines the outer shape of the rotor blade and a cavity which is confined by the shell, and a lightning protection system with an internal down conductor extending from the root section of the rotor blade to the tip section of the rotor blade, wherein the internal down conductor is connectable at the root section to a grounding system of the remainder of the wind turbine and at the tip section to at least one tip lightning receptor which is positioned at the surface of the rotor blade. In addition, the rotor blade comprises an electrically insulating tip part.

Provided is a rotor blade of a wind turbine, wherein the rotor blade includes a trailing edge section with a trailing edge and a leading-edge section with a leading-edge, a root section with a root and a tip section with a tip, a shell which defines the outer shape of the rotor blade and a cavity which is confined by the shell, and a lightning protection system with an internal down conductor extending from the root section of the rotor blade to the tip section of the rotor blade, wherein the internal down conductor is connectable at the root section to a grounding system of the remainder of the wind turbine and at the tip section to at least one tip lightning receptor which is positioned at the surface of the rotor blade. In addition, the rotor blade comprises an electrically insulating tip part.

The disclosure concerns a segmented wind turbine rotor blade, which is formed by at least two rotor blade segments, wherein at a division area of the wind turbine rotor blade the segments are firmly connected together at respective connection ends via a plurality of connecting elements, wherein a gap is formed between the connection ends, and a fairing is attached to the segments at the division area, the fairing covering the gap and the connecting elements; wherein the fairing is divided into at least two separate fairing sections, the fairing sections are coupled together at coupling regions at the pressure side and/or at the suction side of the rotor blade, and the coupling regions are spaced apart from the trailing edge or leading edge. The disclosure also concerns a method.

The disclosure concerns a segmented wind turbine rotor blade, which is formed by at least two rotor blade segments, wherein at a division area of the wind turbine rotor blade the segments are firmly connected together at respective connection ends via a plurality of connecting elements, wherein a gap is formed between the connection ends, and a fairing is attached to the segments at the division area, the fairing covering the gap and the connecting elements; wherein the fairing is divided into at least two separate fairing sections, the fairing sections are coupled together at coupling regions at the pressure side and/or at the suction side of the rotor blade, and the coupling regions are spaced apart from the trailing edge or leading edge. The disclosure also concerns a method.

Disclosed is a wind turbine blade comprising a shell body, a down conductor arranged in the shell body for conducting lightning current to ground, an electrical connector arranged in electrical connection with the down conductor, a lightning receptor element arranged at a surface of the shell body or outside the shell body, the lightning receptor element being in electrical connection with the electrical connector. A method for manufacturing a wind turbine blade with a lightning protection system is also provided.

Disclosed is a wind turbine blade comprising a shell body, a down conductor arranged in the shell body for conducting lightning current to ground, an electrical connector arranged in electrical connection with the down conductor, a lightning receptor element arranged at a surface of the shell body or outside the shell body, the lightning receptor element being in electrical connection with the electrical connector. A method for manufacturing a wind turbine blade with a lightning protection system is also provided.

Variable radiofrequencies electromagnetic compensating device for protecting wind towers blades or other mobile or static structures includes two conductive adapters of connection (1, 2) charged, one (1) of the connections of the device with the external collectors of the element to be protected on the one hand and another (2) of the connections with the earth, on the other hand; and two elements of high reactance to the passage of high frequency current and absorbers of energy in form of heat (3, 4) connected on both sides of a frequency resonator composed of a dielectric insulator (9) located between a first and a second conductive elements (7, 8) and respectively to the two adapters (1, 2), generating a force against electromotive to the passage of initial high frequency current, lowering the frequency and absorbing a part of the energy generated in heat.

The invention relates to a method for the application of heating mats (10) on a wing/blade of a wind power station or other devices for the purpose of achieving deicing also during operation when necessary. Temperature measurement and de-icing take place by means of pulsed current to the heating mat (10). The invention also relates to an arrangement.

A method of manufacturing a product including at least two carbon parts including the step of: manufacturing a first carbon part, manufacturing at least a second carbon part, providing on a surface of one of the first carbon part or second carbon part a plurality of protrusions including a carbon resin, joining together the first carbon part and the second carbon part in such a way that the plurality of protrusions is interposed between the first carbon part and second carbon part for providing physical and electrical connection is provided.

The present disclosure is directed to a system comprising a structure being prone to lightning strikes and icing, wherein the structure comprises a shielding arrangement electrically connected to a lightning arrangement, an electric heating arrangement connected to a power source for mitigating icing of the structure, and an electrical insulation arrangement being effectively provided between the shielding arrangement and the electric heating arrangement. A power source is configured for applying a predetermined amount of electric test- and/or maintenance-energy such that the electric test- and/or maintenance-energy is effectively present between the shielding arrangement and the electric heating arrangement. A determination device is electrically connected to the shielding arrangement and to the electric heating arrangement in a way that the shield-heating-voltage and/or the shield-heating-current being present between the shielding arrangement and the electric heating arrangement can be determined.