EP3966905A1 - Support de câble pour un câble d'une installation d'énergie éolienne et procédé - Google Patents

Support de câble pour un câble d'une installation d'énergie éolienne et procédé

Info

Publication number
EP3966905A1
EP3966905A1 EP20718294.0A EP20718294A EP3966905A1 EP 3966905 A1 EP3966905 A1 EP 3966905A1 EP 20718294 A EP20718294 A EP 20718294A EP 3966905 A1 EP3966905 A1 EP 3966905A1
Authority
EP
European Patent Office
Prior art keywords
cable
receptacle
funnel
elastic insert
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20718294.0A
Other languages
German (de)
English (en)
Inventor
Stefan Biehle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wobben Properties GmbH
Original Assignee
Wobben Properties GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wobben Properties GmbH filed Critical Wobben Properties GmbH
Publication of EP3966905A1 publication Critical patent/EP3966905A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/82—Arrangement of components within nacelles or towers of electrical components
    • F03D80/85—Cabling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/85—Electrical connection arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to a cable holder, in particular for a cable of a wind energy installation, a cable harness, a tower, a wind energy installation and a method for fastening a cable.
  • Wind turbines are known in principle, they generate electrical power from wind. Modern wind energy systems generally relate to so-called horizontal-axis wind energy systems, in which the rotor axis is arranged essentially horizontally and the rotor blades sweep over an essentially vertical rotor surface.
  • wind energy installations comprise a tower on which the nacelle with the rotor is arranged such that it can rotate about a substantially vertically aligned axis.
  • the towers for wind turbines are usually slim structures, which preferably have a great height and have comparatively small dimensions orthogonally to this height.
  • Towers preferably consist essentially of concrete and / or steel or comprise these materials.
  • the spectrum of tower designs ranges from lattice constructions or tubular steel towers with or without tensioning cables to concrete structures.
  • cables can extend from the nacelle and thus from a tower top to a tower base.
  • the cables can, for example, be designed as low-voltage cables or as medium-voltage cables.
  • the cables within a tower of a wind turbine generator plastic clamps, pulling stockings or metal clamps are usually arranged and fixed.
  • plastic clamps, pull grips or metal U-clamps can damage the cables with high cable weights in conjunction with larger fastening distances.
  • the cable weight can also be carried by platforms arranged in the tower.
  • platforms arranged in the tower For example, there is the possibility of leading the cable in an S-shape around a device arranged on a pedestal.
  • This S-shaped guide can at least partially bear the weight of the cable so that it is introduced into the platform and from there into the tower.
  • the devices with an S-shaped guide require a large amount of space, since the cables usually have large minimum bending radii.
  • the platforms must be specially designed for this.
  • the S-shaped routing of the cable is associated with a lot of effort during installation.
  • a cable holder in particular for a cable of a wind turbine, preferably for a medium-voltage cable connected to a medium-voltage transformer of a wind turbine, comprising a cable receptacle with a funnel-shaped cavity, an elastic insert arranged within the funnel-shaped cavity, the cable receptacle and the elastic insert are arranged and designed in such a way that the cable can extend through the funnel-shaped cavity and the elastic insert can be clamped between the cable receptacle and the cable.
  • the cable receptacle has the funnel-shaped cavity.
  • the funnel-shaped cavity of the cable receptacle preferably extends from a first, upper opening of the cable receptacle to a second, lower opening of the cable receptacle, the upper and lower opening preferably being openings at the end of the cable receptacle.
  • a cable passage axis preferably runs between the upper and lower opening.
  • the funnel-shaped geometry of the cavity means in particular that the cavity tapers.
  • the funnel-shaped cavity can have a tapering section and, if necessary, also a section that is adjoining it, which is widened again.
  • the funnel-shaped cavity can have straight, convex and / or concave courses.
  • the cable receptacle preferably has the cable passage axis between the upper opening and the lower opening.
  • the cable receptacle preferably has a cross section orthogonal to the cable passage axis. This cross section can be ring-shaped and / or angular, in particular polygonal.
  • the cable receptacle can for example be designed to be rotationally symmetrical about the cable passage axis.
  • the cable receptacle can for example consist of aluminum or steel, in particular stainless steel, or comprise aluminum or steel, in particular stainless steel.
  • the wall thickness of the cable receptacle is preferably between 1 mm and 10 mm, in particular between 2 mm and 5 mm.
  • the funnel-shaped cavity can have radial internal dimensions, for example diameter, between 50 mm and 140 mm.
  • the radial outer dimensions can be between 150 mm and 250 mm, for example.
  • the cable receptacle can extend between the upper opening and the lower opening with a height between 200 mm and 1000 mm.
  • the elastic insert is arranged within the funnel-shaped cavity.
  • the elastic insert is in particular arranged and designed in such a way that it is clamped between a cable and an inner wall of the cable receptacle during operation. This wedging prevents or blocks a relative movement between the cable and the cable receptacle.
  • the cable receptacle and the elastic insert are arranged and / or designed such that a cable can be extended through the funnel-shaped cavity and the elastic insert can be clamped between the cable receptacle and the cable, so that a movement of the cable in at least one direction is blocked. especially in the direction of the tapering of the cavity.
  • the elastic insert can also be designed such that two or more cables can extend through it.
  • the elastic insert can for example also be arranged at least partially between the two or more cables.
  • the elastic insert preferably comprises a cylindrical and / or conical base body in which two or more through openings are arranged, the two or more through openings preferably being aligned essentially parallel to the cable through axis of the cable receptacle.
  • a cable can be arranged in each case in a through opening.
  • a passage can be arranged between each passage opening and an outer circumferential surface of the elastic insert so that a cable can be inserted on the circumferential side.
  • the upper end being characterized by dimensions, in particular by a diameter or a radial extension of a polygonal cross section, which are greater than dimensions , in particular a diameter or a radial extension of a polygonal cross section, of the lower opening.
  • the cable holder is preferably installed during operation in such a way that it is arranged on a tower, in particular an inner wall of a tower.
  • the cable is then placed in the funnel-shaped cavity.
  • the elastic insert is then inserted into the funnel-shaped cavity, in particular in such a way that it is located in an intermediate space between an inner wall of the cable receptacle and the cable.
  • the elastic insert can be arranged around the cable.
  • a lifting device of the cable is relieved so that the cable is moved downwards by gravity.
  • the cable pulls the elastic insert further in the direction of the smaller, lower opening of the cable receptacle and becomes stuck between the inner wall of the cable receptacle and the cable. Due to the frictional force between the cable and the elastic insert, the cable is pinched and thus blocked in its vertical downward movement.
  • the invention is based, inter alia, on the knowledge that the cables of wind turbines represent a sensitive device.
  • the invention is based on the knowledge that medium-voltage cables are increasingly used in the towers, which have a higher weight per meter than previously used low-voltage cables.
  • the previously known fastenings for cables within towers of wind power plants can therefore increasingly not be used for today's heavy cables without being able to exclude damage and / or ensure the economic efficiency of the fastening.
  • the cable holder is particularly suitable for a cable of a wind energy installation which has more than 6 kg / m, preferably more than 8 kg / m, in particular more than 9 kg / m.
  • a cable with a meter weight of 9 kg has a weight of 270 kg for a 30 m section.
  • the cable holder according to the aspect mentioned above is suitable for absorbing high meter weights of cable despite the large spacing of the cable holders from one another. As a result, fewer cable holders have to be provided overall in a tower of a wind turbine. Because of this smaller number of cable holders, the assembly effort is reduced.
  • the inventor of the cable holder described above has found that the clamping enables a particularly advantageous fastening of the cables while being free from damage.
  • the cable receptacle is designed to be open on the circumferential side for inserting, in particular for circumferential insertion, a section of the cable into the funnel-shaped cavity.
  • the cable receptacle preferably extends from a first end face to a second end face, it being possible for these end faces to encompass the openings through which the cable extends.
  • the cable receptacle preferably extends circumferentially between the end faces. In this preferred embodiment variant, this circumferential side is designed to be partially open and is therefore designed in particular to be broken. The open design of the cable receptacle enables a section of the cable to be inserted into the funnel-shaped cavity.
  • the section of the cable can in particular be inserted with an insertion direction that is oriented essentially orthogonally to the longitudinal direction of the cable.
  • the cable receptacle is preferably designed to be open between the aforementioned end faces. As a result of this open design of the cable receptacle, the cable receptacle can first be attached to a tower and then the cable can be arranged in the funnel-shaped cavity. As a result, the fastening of the cable in the cable holder is simplified.
  • the cable receptacle has an upper section and a lower section, an upper dimension of the funnel-shaped cavity in the upper section being greater than a lower dimension of the funnel-shaped cavity in the lower section, and preferably the funnel-shaped cavity in the has or have an annular cross section in the upper section and / or in the lower section.
  • the upper dimension of the funnel-shaped cavity in the upper section is preferably to be understood as a diameter in the case of an annular cross section of the cable receptacle in the upper section.
  • the lower dimension of the funnel-shaped cavity in the lower section is preferably also to be understood as a diameter in the case of an annular cross section of the lower section.
  • the clamping effect described above is made possible by the different dimensions of the funnel-shaped cavity.
  • the above-mentioned cross section is to be understood in particular as being orthogonal to the axis of the cable passage.
  • the annular cross section is preferably characterized by an outer diameter and an inner diameter.
  • the annular cross section can also have oval sections.
  • the funnel-shaped cavity can provide that the inner diameter decreases steadily from the upper end to the lower end.
  • the inside diameter can also be constant in sections. In particular, it is preferred that the inside diameter in the lower section adjoining the lower end is reduced, in particular steadily reduced.
  • the cable holder extends from the upper end to the lower end in the longitudinal direction, the upper section adjoins the upper end and the lower section adjoins the lower end, and the cable holder has an insertion opening , which extends from the upper end to the lower end and is designed that a cable can be inserted through this into the funnel-shaped cavity.
  • the longitudinal direction is preferably aligned parallel to the axis of the cable passage.
  • the longitudinal direction runs in particular between the end faces.
  • the cable receptacle extends orthogonally to the cable passage axis or the longitudinal direction and orthogonally to the radial direction in a circumferential direction.
  • the extension in the circumferential direction can be formed, for example, by a wall of the cable receptacle.
  • the insertion opening preferably also extends in the circumferential direction.
  • the opening angle of the insertion opening can be greater than 30 °, greater than 45 °, greater than 60 ° or greater than 90 °, for example.
  • the insertion opening can be tapered from the upper end to the lower end.
  • the insertion opening is to be understood in particular as an additional opening to the front openings.
  • the cable receptacle preferably has three openings, namely the insertion opening, an opening at the upper end and an opening at the lower end. The openings at the top and bottom are used to extend the cable through. The cable also extends through this during operation.
  • the insertion opening is only provided for inserting the cable into the funnel-shaped cavity.
  • the insertion opening is therefore preferably only used when installing or removing the cable in the cable holder or from the cable holder.
  • the openings can be in communication with one another, in particular the openings at the upper end and at the lower end can be in communication with the insertion opening.
  • it comprises a funnel closure for closing the insertion opening, the funnel closure preferably having essentially the geometry of the insertion opening.
  • the funnel closure can, for example, be arranged on the retaining element explained in more detail below, the funnel closure preferably being designed so that after the cable receptacle has been rotated such that the insertion opening faces the closest tower wall, the insertion opening is closed.
  • the funnel closure can also be designed as a screw or hook or comprise these or these, it being particularly preferred that the screw or the hook can be arranged in a corresponding opening of the holding element.
  • the insertion opening can be closed with the funnel closure.
  • the cable holder is preferably rotated after the insertion opening has been closed with the funnel closure.
  • the cable receptacle is designed as a first jacket segment, which has a first circumferential extent running in the circumferential direction of less than 360 ° and forms the insertion opening
  • the funnel closure is designed as a second jacket segment that has a having a second circumferential extent extending in the circumferential direction, the first circumferential extent and the second circumferential extent together amounting to essentially 360 °.
  • the circumferential direction is aligned orthogonally to the cable passage axis or to the longitudinal extension of the cable receptacle.
  • the circumferential direction is additionally also essentially orthogonal to a cable longitudinal extension of a cable which extends through the funnel-shaped cavity.
  • the first jacket segment forms the cable receptacle.
  • the first jacket segment extends less than 360 ° in the circumferential direction.
  • the insertion opening is thereby formed. If, for example, the first jacket segment extends with a first circumferential extent of 330 °, the insertion opening has a circumferential extent of 30 °.
  • the cable holder has the funnel closure, which is designed as a second jacket segment.
  • the funnel closure would have a second circumferential extension of 30 °, for example.
  • the sum of the first circumferential extent and the second circumferential extent can also result in more or less than 360 °.
  • 360 ° can in particular mean that the sum of the first circumferential extension and the second circumferential extension is between 358 ° and 362 °.
  • the cable receptacle and / or the elastic insert each have an annular cross section, and an outer peripheral surface of the elastic insert is arranged on an inner peripheral surface of the cable receptacle.
  • the elastic insert is arranged on an inner peripheral surface of the cable receptacle.
  • the elastic insert is arranged between the inner peripheral surface of the cable receptacle and the cable.
  • the elastic insert is arranged between them.
  • the cable is fastened in a surprisingly simple manner in the direction of the cable passage axis of the cable receptacle.
  • the elastic insert has a tubular and / or funnel-shaped geometry and / or the elastic insert is a rubber insert.
  • the elastic insert has a geometry that corresponds to the cable receptacle.
  • the elastic insert can consist of or comprise rubber, for example.
  • the elastic insert consists of or comprises ethylene-propylene-diene rubber.
  • the elastic insert can comprise or consist of one or more of the following materials: polyurethane, cellular rubber, elastomers, in particular styrene-butadiene rubber, acrylonitrile-butadiene rubber, polychloroprene, butyl rubber / isobutene-isoprene rubber, polyolefin rubber / ethylene -Propylene rubber.
  • the elastic insert has a slot, and preferably the cable holder has the cable passage axis, the main direction of extent of the slot being oriented essentially parallel to the cable passage axis.
  • the component of the main direction of extent of the slot which is vertical during operation is essentially parallel to the axis of the cable passage. Due to the funnel-shaped geometry of the cable receptacle and the elastic insert arranged therein, the slot generally also has a slight horizontal directional component.
  • the elastic insert can also be designed as a jacket segment, in particular as a slotted jacket segment.
  • the jacket segment is preferably tubular and / or funnel-shaped.
  • the elastic insert has an extension in a circumferential direction. It is preferred that this extension in the circumferential direction is 360 °, less than 360 ° or less than 330 °.
  • the cable holder comprises a holding element for arrangement on a tower, the cable receptacle being coupled to the holding element.
  • the holding element is designed in particular such that it can be arranged for fastening to a tower wall and / or a flange, in particular a horizontal flange and / or a vertical flange, a tower wall segment and / or a pedestal within a tower.
  • the holding element can preferably be arranged on a tower in such a way that it can be fixed in the vertical direction during operation. In particular, a vertical movement downwards is blocked.
  • the holding element can be screwed or glued to the tower.
  • the holding element has an insertion groove with an insertion width transverse to an insertion direction, and the insertion width is less than a diameter of the cable receptacle at the upper end, so that in a vertical direction a positive connection between the holding element and the cable receptacle is formed.
  • the insertion direction is preferably the direction in which the cable is inserted into the holding element through the insertion opening.
  • the cable receptacle can have a collar at the upper end. This collar can be provided for a positive coupling with the holding element. The collar can be used to form a hanging arrangement of the cable receptacle on the holding element.
  • the cable receptacle is rotatably arranged on the holding element. Due to the rotatability of the cable receptacle on the holding element, the insertion opening for arranging the cable in the funnel-shaped cavity can face the inside of the tower. After a cable has been arranged in the funnel-shaped cavity and the elastic insert has been arranged therein, the cable receptacle can be rotated such that the insertion opening faces away from the interior of the tower and, for example, faces a tower wall. In particular, it is preferred that the funnel closure closes the opening. A secure arrangement of the cable with the cable holder is thus possible and the cable is at least partially shielded and protected from the interior of the tower.
  • a cable harness for a wind turbine comprising a cable, in particular a low-voltage and / or a medium-voltage cable, with a cable diameter, a cable holder according to at least one of the embodiment variants described above, wherein the cable extends through the cable holder, and a lower diameter of the cable receptacle is dimensioned relative to the cable diameter such that the elastic insert is clamped between the cable receptacle and the cable, so that a directed movement of the cable from the upper end to the lower end of the cable receptacle is substantially prevented .
  • the cable extends in particular from a first end face to a second end face of the cable holder, in particular the cable receptacle.
  • An upper diameter of the cable holder is preferably larger than the lower diameter of the cable holder.
  • the lower diameter of the cable receptacle is preferably slightly larger than the cable diameter.
  • a preferred development of the cable harness provides that a first coefficient of friction between the cable receptacle and the elastic insert is lower than a second coefficient of friction between the elastic insert and the cable.
  • the elastic insert comprises a first surface facing the cable receptacle and a second surface facing the cable, the first surface having a lower surface roughness than the second surface.
  • the function described above is made possible in an advantageous manner.
  • a second coefficient of friction that is greater than a first coefficient of friction, it is ensured that the cable takes the elastic insert with it to the lower end of the cable receptacle and thus squeezes the elastic insert there or in an area adjacent to the lower end comes.
  • the cable harness it is provided that the cable has a cable weight of more than 6 kg / m, in particular more than 8 kg / m, preferably more than 9 kg / m.
  • a 9 kg / m cable has a weight of 270 kg / 30 m.
  • the cable has a length of more than 30 m, more than 60 m, more than 90 m, more than 120 m or more than 150 m.
  • the cable loom comprises two or more cable holders according to one of the embodiment variants described above.
  • a tower of a wind power plant comprising a cable holder according to at least one of the embodiment variants described above and / or a cable harness according to one of the embodiment variants described above.
  • a preferred development of the tower provides that it comprises two or more cable holders according to at least one of the design variants described above, and the two or more cable holders more than 10 meters, more than 15 meters or more than 20 meters, preferably more than 30 meters Meters, are spaced from each other.
  • the tower can comprise a cable harness according to the previous aspect with two or more cable holders according to at least one of the embodiment variants described above, the two or more cable holders more than 10 meters, more than 15 meters or more than 20 meters, preferably more than 30 meters Meters, are spaced from each other.
  • the object mentioned at the outset is achieved by a wind power installation comprising a tower according to at least one of the previously described embodiment variants.
  • the above-mentioned object is achieved by a method for fastening a cable, in particular within a tower of a wind turbine, comprising the steps of: inserting a cable into a cable receptacle with a funnel-shaped cavity, and arranging an elastic insert in a space between the Cable receptacle and the cable, so that the elastic insert rests at least in sections on the cable and the cable receptacle.
  • the method comprises the step or steps: closing an insertion opening of the cable receptacle with a funnel closure, and / or rotating the cable receptacle such that the insertion opening faces a tower wall; and / or relieving the cable in the vertical direction so that at least part of the weight of the cable is held by a frictional force acting between the cable and the elastic insert.
  • Embodiment of a wind turbine 2-4: schematic, three-dimensional views of an exemplary wind turbine
  • FIG. 5 a schematic, two-dimensional sectional view of the one in the figures
  • FIGS. 2-4 a schematic, two-dimensional, sectioned plan view of the cable holder shown in FIGS. 2-4;
  • the wind energy installation 100 has a tower 102 and a nacelle 104 on the tower 102.
  • An aerodynamic rotor 106 with rotor blades 108 and a spinner 110 is provided on the nacelle 104.
  • the aerodynamic rotor 106 is set into a rotary motion by the wind and thus also rotates an electrodynamic rotor or rotor of a generator, which is coupled directly or indirectly to the aerodynamic rotor 106.
  • the electrical generator is arranged in the nacelle 104 and generates electrical energy.
  • the pitch angles of the primary rotor blades 108 can be changed by pitch motors at the rotor blade roots of the respective primary rotor blades 108.
  • the electrodynamic rotor or rotor of the generator is usually located in the nacelle 104.
  • the electrical power generated in the nacelle 104 is fed into a supply network.
  • the electrical power must first be conducted from the nacelle 104 in the direction of the tower base.
  • 102 cables are usually provided within the tower.
  • a cable holder is provided in the tower 102, which comprises a cable receptacle with a funnel-shaped cavity and an elastic insert arranged within the funnel-shaped cavity.
  • the funnel-shaped cavity tapers downwards in the vertical direction.
  • the cable holder and the elastic insert are arranged and designed in such a way that a cable extends through the funnel-shaped cavity and the elastic insert is clamped between the cable holder and the cable. As a result, the cable is fixed in a downward, vertical direction.
  • FIGS 2-4 show schematic, three-dimensional views of an exemplary embodiment of a cable holder 200.
  • the cable holder 200 comprises the cable receptacle 220 through the funnel-shaped cavity 221 of which a cable 120 extends.
  • the cable receptacle 220 extends from an upper end 222 to a lower end 226.
  • the upper end 222 and the lower end 226 can also be understood as front ends of the cable receptacle 220.
  • Adjacent to the upper end 222, the cable receptacle 220 has an upper section 224.
  • Adjacent to the lower end 226, the cable receptacle 220 has a lower section 228.
  • the diameter of the cable holder 200 is larger in the upper section 224 than in the lower section 228.
  • the funnel-shaped shape of the cavity 221 is thereby formed.
  • the cable receptacle 220 has a collar at the upper end 222 which protrudes radially outward. This collar produces a form fit with the holding element 210.
  • the holding element 210 has an insertion groove with an insertion width transverse to the insertion direction. The insertion width is less than a diameter of the collar at the upper end 222, so that in a vertical direction V a positive connection is formed between the holding element 210 and the cable receptacle 220.
  • the cable receptacle 220 extends orthogonally to this vertical direction V in the radial direction R. In the plane of the radial direction R, the cable receptacle 220 has an annular cross section.
  • the cable receptacle In the circumferential direction U, the cable receptacle extends with a first circumferential extent of approximately 270 °. Thereby, an insertion opening 230 is formed which extends at 90 ° in the circumferential direction U. As shown in FIG. 3, the insertion opening 230 is closed with a funnel closure 232.
  • the cable receptacle 220 and the funnel closure 232 form a closed funnel-shaped geometry. After the funnel lock 232 has been arranged, the cable receptacle 220 can be rotated around the axis V in the circumferential direction U so that the funnel lock 232 faces a tower wall.
  • the elastic insert 240 can be arranged in the intermediate space formed between the cable 120 and the inner wall of the cable receptacle 220 and the funnel closure 232.
  • a second coefficient of friction preferably acts between the cable 120 and the elastic insert 240.
  • a first coefficient of friction preferably acts between the cable receptacle 220 and / or the funnel closure 232 and the elastic insert 240, the first coefficient of friction being lower than a second coefficient of friction. Consequently, when the cable 120 is moved in the vertical direction V, the elastic insert 240 is moved with the cable 120 in the direction V.
  • the elastic insert 240 is squeezed between the cable receptacle 220 and the cable 120, particularly in the lower section 228. If the elastic insert 240 is appropriately dimensioned in the radial direction R, the squeezing is so severe that the friction between the cable 120 and the elastic insert 240 changes to static friction. When the transition to static friction occurs, a movement of the cable 120 in the vertical direction V is blocked.
  • FIG. 5 This squeezing of the elastic insert 240 between the cable receptacle 220 and the cable 120 is shown in particular in FIG. 5. It can be seen here that the elastic insert 240 is squeezed more strongly in the lower section 228 than in the upper section 224.
  • the sectional view through the cable receptacle 220 can be seen in FIG. 6. It can be seen that the cable receptacle 220 with the funnel-shaped cavity 221 is present on the outside.
  • the elastic insert 240 adjoins this, the cable 120 being arranged inside the elastic insert 240.
  • the cable receptacle 220 is fixed positively in the vertical direction V within an insertion groove of the holding element 210 by means of a collar.
  • FIG. 7 shows a schematic, three-dimensional view of an exemplary embodiment of an elastic insert 240 '. 7 shows, in particular, an end face and part of a circumferential side of the essentially cylindrical elastic insert 240 '.
  • the elastic insert 240 ′ is provided for the case that three cables are to be fastened with a cable holder 200.
  • the elastic insert 240 ′ has a first through opening 242, a second through opening 244 and a third through opening 246.
  • a cable can be arranged in each of the through openings 242, 244, 246.
  • this elastic insert 240 ′ is also squeezed between the cables and the cable receptacle 220, so that the cables are fastened.
  • FIG. 8 shows a schematic illustration of an exemplary embodiment of a method for fastening a cable in a wind turbine tower.
  • step 300 the cable 120 or two or more cables are inserted into the cable receptacle 220 with the funnel-shaped cavity 221.
  • step 302 the elastic insert 240, 240 ‘is arranged in the space between the cable receptacle 220 and the cable 120, so that the elastic insert 240, 240‘ rests on the cable 120 or the cables and the cable receptacle 220 at least in sections.
  • step 304 the insertion opening 230 of the cable receptacle 220 is closed with a funnel closure 232.
  • the cable receptacle 220 is rotated in the circumferential direction U so that the insertion opening 230 faces a tower wall.
  • the cable 120 is relieved of load in the vertical direction V, so that at least part of the weight of the cable 120 is held by a frictional force acting between the cable 120 and the elastic insert 240, 240 '.
  • the cable holder 200 described above enables the cable weight of a cable 120, in particular in a wind turbine tower 102, to be absorbed at a few points within the tower 102. This results in a high cable weight to be intercepted per cable holder 200.
  • the cable holder 200 By squeezing the elastic insert 240, 240 'between the cable 120 and the cable receptacle 120, the cable holder 200 enables the cable to be secured without damage.
  • the outer sheath of the cable 120 is less stressed than in the previously known solution.
  • the cable fastening can be carried out without tools and the assembly of the cables within the tower 102 is simplified.
  • the maintenance of the cable fastenings is associated with less effort.

Abstract

La présente invention concerne un support de câble (200), en particulier pour un câble d'une installation d'énergie éolienne, un faisceau de câbles, une tour, une installation d'énergie éolienne ainsi qu'un procédé de fixation d'un câble. La présente invention concerne en particulier un support de câble (200), en particulier pour un câble d'une installation d'énergie éolienne, de préférence pour un câble de moyenne tension relié à un transformateur de moyenne tension d'une installation d'énergie éolienne, comportant un logement de câble (220) ayant un espace creux en forme d'entonnoir (221), un insert élastique (240, 240') disposé à l'intérieur de l'espace creux en forme d'entonnoir (221), le logement de câble (220) et l'insert élastique (240, 240') étant disposés et conçus de manière que le câble peut s'étendre à travers l'espace creux en forme d'entonnoir (221) et que l'insert élastique (240, 240') peut être serré entre le logement de câble (220) et le câble.
EP20718294.0A 2019-05-08 2020-04-08 Support de câble pour un câble d'une installation d'énergie éolienne et procédé Pending EP3966905A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019112031.4A DE102019112031A1 (de) 2019-05-08 2019-05-08 Kabelhalterung für ein Kabel einer Windenergieanlage und Verfahren
PCT/EP2020/060079 WO2020224909A1 (fr) 2019-05-08 2020-04-08 Support de câble pour un câble d'une installation d'énergie éolienne et procédé

Publications (1)

Publication Number Publication Date
EP3966905A1 true EP3966905A1 (fr) 2022-03-16

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EP20718294.0A Pending EP3966905A1 (fr) 2019-05-08 2020-04-08 Support de câble pour un câble d'une installation d'énergie éolienne et procédé

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Country Link
US (1) US11846272B2 (fr)
EP (1) EP3966905A1 (fr)
DE (1) DE102019112031A1 (fr)
WO (1) WO2020224909A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113202704B (zh) * 2021-05-19 2022-03-22 广西灵山大怀山新能源有限公司 一种风力发电用线路连接防脱落装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE435678C (de) * 1926-10-15 Hinzer & Co G M B H Fabrik Fue Vorrichtung zum Befestigen von Kabeln, insbesondere in Schaechten
US1576947A (en) * 1925-04-15 1926-03-16 Michael J Cafiero Cable support
US2913791A (en) 1955-08-09 1959-11-24 Martin Harry Captive plug coupling
JPH0670428A (ja) * 1992-08-17 1994-03-11 Mitsubishi Electric Corp ケーブル把持嵌挿体
AU1772400A (en) * 1998-12-17 2000-07-03 Dancontrol Engineering A/S Wind mill with a suspension for cables and the like, such suspension for cables and the like and a holder for such suspension
DE102011076941A1 (de) 2010-06-03 2011-12-29 Suzlon Energy Gmbh Turm für eine Windturbine
DE102012001409A1 (de) * 2012-01-25 2013-07-25 Hydac Accessories Gmbh Befestigungssystem für strangförmige Funktionselemente, insbesondere bei Windkraftanlagen
US9677275B2 (en) * 2012-12-18 2017-06-13 Wobben Properties Gmbh Anchor, tensioning device, wind energy plant and method for tensioning tensile cords on an anchor
GB2527084A (en) * 2014-06-11 2015-12-16 Ibm Cable securing apparatus and method of securing a cable
CN108321747A (zh) * 2018-05-10 2018-07-24 王文让 一种新型卡线器及其使用方法
EP3690240A1 (fr) * 2019-01-31 2020-08-05 Siemens Gamesa Renewable Energy A/S Procédé de fabrication d'une éolienne, tour d'une éolienne et éolienne

Also Published As

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US20220163017A1 (en) 2022-05-26
WO2020224909A1 (fr) 2020-11-12
US11846272B2 (en) 2023-12-19
DE102019112031A1 (de) 2020-11-12

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