• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a substructure (1) for increasing the seismic safety of at least one high-voltage component (2), in particular a choke coil (3). The substructure (1) comprises a platform (4), which is designed for load-carrying reception of the high-voltage component (2) and which platform (4) is suspended by at least three traction means (5) on a support device (6) of a support structure (7). The platform (4) is connected to the traction means (5) by a first articulated connection (22), and the traction means (5) are each connected to the carrying device (6) by a second articulated connection (23). 6) by means of at least three supports (8) on the bottom (9) is supported. The supports (8) are formed by high-voltage insulators (11) made of electrically insulating material, which electrically insulate the at least one high-voltage component (2) against earth potential and support the load-bearing manner on the bottom (9).
    公开号:AT516245A1
    申请号:T50502/2014
    申请日:2014-07-18
    公开日:2016-03-15
    发明作者:
    申请人:Coil Holding Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a substructure for increasing the seismic resistance of at least one high-voltage component, in particular a drosingle coil for electrical power supply networks, as specified in claim 1.
    In areas in which low demands are placed on the earthquake-proof installation of reactor coils, these are placed on column-like support insulators. These support insulators, which are supported against the ground, and on which the weight of the inductance coil loads, must be designed with a correspondingly large length in order to minimize leakage currents across the insulators or to avoid as much as possible. Accordingly, it can occur that the insulators with a length of 10 m and more must be designed with correspondingly high operating or mains voltages. Standard substructure constructions are only of limited suitability for installation in earthquake regions, since increased mechanical loads occur in an earthquake occur on the standard designs.
    In the case of earthquakes, the greatest lateral accelerations occur in an excitation frequency range of the earthquake of approximately 1 Hz to 10 Hz. The above-described constructions with such a large length of the support insulators have an inherent frequency which lies in the region of this critical exciter frequency. Thus, with correspondingly low damping of the substructure construction, resonance problems can occur due to which the substructure construction of the throttle body can no longer withstand, above all because of the high mechanical loads on the part of the relatively heavy high-voltage component.
    WO 2014/008597 A1 describes a damping support bearing, which is provided inter alia for arrangement between a porcelain insulator and an air core choke coil. Its properties are only partially satisfactory when used in zones with high earthquake stress.
    US Pat. No. 3,789,174 A discloses a substructure for the earthquake-proof erection of a transformer and a circuit breaker. The substructure comprises a support structure which is anchored in the ground and formed in the form of a double row portal. The support structure has supports to which a support is attached, which support spans two supports spaced apart from one another. Furthermore, the Unterbaukonstruk¬tion comprises a platform which is suspended by tie rods on the support of the support structure. The tie rods, which are mounted both on the platform, as well as on the carrier joint, are vertically aligned and parallel to each other angeord¬net. By virtue of this arrangement, the platform is capable of oscillating relative to the support structure, whereby only subdued movements of the subsurface on which the support structure is anchored to the platform. Column-like insulators are mounted on the platform, with one high-voltage-carrying part, for example a transformer, being attached to a columnar isolator so that the high-voltage carrying part is spaced from the platform accordingly, in order to reduce or greatly increase creepage currents ¬hend to avoid and to avoid voltage flashovers.
    From DE 30 10 281 A1 a substructure for the earthquake-proof installation of a transformer or an inductor is known. The Unterbaukon¬ structure includes a support structure to which similar to the construction of a swing at both ends of a tubular support two each acute angle aligned zuei¬nander aligned supports are attached, which supports are attached to the substrate and support the supports bridging the carrier. On rohrförmi¬gen carrier pivotable brackets are attached to the support axis. Andiesen holders are attached to both sides of the carrier axle traction means, wobeian the traction means are suspended. The traction means are in this case designed as isolator chains. For each transformer four isolator chains are mounted, wherein each transformer two pairs of insulator chains are attached to the pivotable Halte¬rung. The insulator strings running in pairs in the direction of the pivotable mount are arranged in a V-shaped manner, the spacing of the isolator chains from one another on the transformer being smaller than the spacing of the isolator chains from one another on the pivotable mount. In addition, the two pairs of insulator strings are arranged in the transverse direction V-shaped to each other angeord¬net.
    The design described in US 3,789,174 A has the disadvantage that, due to the construction of the substructure, the first natural frequency can only be insufficiently affected when using very long insulators to displace it out of the critical range. In addition, the substructure has only insufficient damping.
    The embodiment described in DE 30 10 281 A1 has the disadvantage that, due to the suspension of the transformer on only one horizontally extending support, in the event of an earthquake, the transformer tilts. Furthermore, only a limited-weight transformer can be accommodated in the construction shown without causing deformation or breakage of the substructure.
    The present invention has for its object to provide an improved Unter¬baukonstruktion for fail-safe as possible installation of a Hochspan¬nungsbauteiles in an earthquake-prone area.
    This object of the invention is solved by the features according to claim 1.
    According to the invention, a substructure is provided for increasing the earthquake resistance of at least one high-voltage component, in particular a drosingle coil for electrical energy supply networks. The Unterbaukon¬ construction comprises a platform which is designed for load-carrying receiving the Hochspannungsbauteiles and which platform is suspended by at least three traction means on a support device of a support structure. The platform is connected by a respective first articulated connection to a first end section of the traction means, and in a second end section the traction means are connected by a respective second articulated connection to the carrier device. The support device is supported by means of at least three supports on the ground. The supports are formed by high-voltage insulators of electrically insulating material, which electrically insulate the at least one high-voltage component against earth potential and support load-bearing on the ground.
    An advantage of the design according to the invention is that the supports can be made of an insulating material with a high longitudinal extent or construction height in order to avoid creeping currents via the insulating material as far as possible. In particular with regard to high, expected earthquake stresses in combination with relatively high operating voltages of the high-voltage component, the construction according to the invention offers particularly advantageous effects and effects. The high voltage component, which is at an elevated voltage potential, together with the platform, which is likewise at elevated voltage potential, can be arranged correspondingly far away from the ground by correspondingly long supports in the form of insulators in order to avoid a voltage flashover with respect to ground potential and sufficiently large creepage distances between the high voltage To realize ¬nungspotential and the ground potential. The embodiment according to the invention has a particular advantage in the installation of high-voltage components, in particular dry-insulated choke coils, with an operating voltage of more than 500 kV. The substructure according to the invention can be built as space-saving as possible, whereby it is possible to use the available space for the installation of a choke coil as efficiently as possible in comparison to the previously known embodiment according to US Pat. No. 3,789,174 A and to minimize the space required for installation. It is furthermore advantageous that the natural oscillations, in particular the first natural vibration or first natural frequency of the substructure or of the overall system of substructure and choke coil, can be influenced by a freely selectable length or by a requirement-specific easily dimensioned length dimensioning of the pull means and thus into a desired or more favorable frequency range can be moved. Of particular advantage is that much of the mass of the system oscillates at the first natural frequency. By means of the substructure according to the invention, the first natural frequency of the system can be correspondingly influenced so that it lies outside of that excitation frequency range of the earthquake at which the greatest lateral accelerations occur. In addition, the high-voltage insulators can have a certain damping effect, as a result of which the maximum acceleration occurring on the platform can be reduced.
    Furthermore, it may be expedient if the length of the traction means, in particular a distance between the first articulated connection and the second articulated connection, is between 0.3m and 3m, in particular between 1.3m and 1.5mb. The advantage here is that can be achieved by a traction means having this length ersteEigenfrequenzen the total system according to the invention, which are at about 0.4 Hz to 0.5 Hz. Thus, by this measure, the relevant first natural frequency of the overall system is outside the critical exciter frequency of a typical earthquake.
    Furthermore, it is expedient if the traction means are aligned vertically and arranged parallel to one another between the carrier device and the platform. In this case, it is advantageous that during the earthquake, and thus during the horizontal oscillation of the platform, there is no tilting of the platform due to the oscillating movement. Moreover, by this measure it is achieved that the platform has sufficient degrees of freedom to allow oscillating movement of the platform and horizontal vibration of the platform thereby does not cause tension within the tightening means, which could damage it.
    In addition, it can be provided that the traction means are designed in the form of Zugstan¬gen. The formation of a pull rod has the advantage that a pull rod limited and can absorb pressure or shear forces. Thus, in a vertical vibration of the substructure construction, a "hopping" of the platform can be reduced or held back. In addition, tie rods can be easily manufactured, whereby an exact or constant length of the tie rods can be easily realized in the manufacturing process.
    Alternatively, it can be provided that the traction means are formed by ropes. The use of ropes has the advantage that, in particular, the articulated connections between rope and platform, as well as between rope and Tragvor¬richtung can be performed simply and inexpensively, since no Drehge¬lenk is needed, but due to the flexibility of the rope Rope itself offers an articulated or angle-compensating suspension. Moreover, a member may be made of an elastic material or relatively resilient in itself, whereby a vertically flexible suspension of the platform can be realized.
    Furthermore, it can be provided that the traction means are formed of an electrically insulating material. It may be advantageous in this case that the total length of the insulation gap between high-voltage component and ground potential can be extended. Thus, occurring leakage currents can be further reduced and the insulation measures can be improved overall.
    Also advantageous is an embodiment according to which it can be provided that the support device comprises at least three support elements, which Trägerele¬mente at least approximately the same length and are lined up annularly or annularly, at least two support elements are arranged at their mutually facing front ends at a distance from each other. By means of the annular arrangement of the carrier elements, it can be achieved that the substructure construction can be made as space-saving as possible, especially for high-voltage components which are round in cross-section, such as air core choke coils. In addition, can be achieved by the annular arrangement of Trä¬gerelementen each having the same or approximately the same length that a load applied by the high voltage component load can be distributed evenly on the support device and thus on the support structure. This ensures that the high-voltage insulators designed as supports are loaded as evenly as possible. After at least two support elements are arranged at their mutually facing front ends at a distance from each other, it can be avoided that the metallic, circular or annular Anei¬nander lined up support elements form a completely closed, electrically conductive ring, if this distance is not by a metallic element, such as is electrically connected or bridged by an underlying support plate. An electrical insulation or separation via this distance can be achieved, for example, by means of an electrically insulating intermediate layer, which can be arranged between the base of a carrier element and the support surface of the high-voltage insulator lying underneath.
    In the annularly arranged support elements induced voltages and unwanted induced losses can thus be avoided or reduced.
    According to a development, it is possible for the two front ends of support elements arranged next to each other to be supported on a common high-voltage insulator. The advantage in this case is that the carrier elements can thereby be connected stably and simply to the respective high-voltage insulators or supported thereon. In addition, the carrier elements can thereby be mounted individually on the high-voltage insulators, as a result of which an assembly of the substructure construction, in particular of the support structure, can be facilitated.
    Furthermore, it may be expedient if at least one transition section is designed to be electrically insulating between successive carrier elements arrayed in a row in a row. As a result of this design, it is possible to prevent the carrier elements, which are arranged in a circle in a circle, forming an electrically conductive ring in which induction and thus undesired losses can occur.
    In addition, it can be provided that an elastic intermediate element is arranged between at least one of the high-voltage insulators and the support elements supported thereon. It is advantageous here that relative movements between the high-voltage insulator and the carrier element, which occur during an earthquake, are balanced by the elastic intermediate element. can be cushioned, so that the risk of mechanical Versa¬gens the connection between the high-voltage insulator and support element can be reduced ver¬.
    Furthermore, it can be provided that at least one of the traction means in the longitudinal center of at least one of the carrier elements is connected to this carrier element. The advantage here is that the Zugmittelmöglichst far away from the high voltage insulator by this measure. Thus, the danger of a possible voltage flashover between the traction means and the isolator can be generally reduced or even reduced during an earthquake.
    According to a particular embodiment, it is possible that at least one support element is arranged on the platform, with which the Hochspannungsbau¬teil is receivable at a vertical distance to the platform. Such a support element has the advantage that thereby the high-voltage component is distanced from the metallic platform. Thus, it can be achieved that the high-voltage component seen in the vertical direction is not or only slightly surrounded by the support elements. As a result, the risk of a possible voltage flashover between the high-voltage component and Abstützele¬menten can be reduced. In particular, it can be advantageous if a longitudinal extent of the support elements is chosen to be approximately the same as a longitudinal extent of the tension elements. As a result, it can be achieved that the high-voltage component is positioned in the vertical direction as a whole or at least predominantly above the carrier device, in particular at a sufficient distance from the carrier elements.
    According to an advantageous development, it can be provided that the at least one support element is formed from an electrically insulating material so that the high-voltage component is electrically insulated from the platform. It may be advantageous that the total length of the insulation gap zwi¬schen high voltage component and ground potential can be extended. This has advantages for the leakage current behavior of the entire device.
    In particular, it may be advantageous for at least one field control device, in particular a corona ring, to be arranged on at least one of the articulated connections. This training leads to electrical discharges, which can occur in the region of the relatively pointed articulated connections, reduce or largely avoid.
    Furthermore, it may be expedient that the platform is designed to be star-shaped in view of the supporting plane of the supporting structure, wherein individual support arms of the platform are connected to one another at a common node. It is advantageous that the construction of the platform can be constructed as simple as possible in order to save weight and thus to avoid excessive stress on the high-voltage insulators. In addition, a ring closure within the platform can thereby be avoided, as a result of which potential losses resulting from such a ring closure can be avoided as far as possible.
    Furthermore, it can be provided that the high-voltage insulators are arranged axially parallel to one another to form the support structure. The advantage here is that zueinan¬der by an axially parallel arrangement of the high-voltage insulators, the substructure may have some flexibility or inclination variability. Thus, the high-voltage insulators can move elastically spring-back in a Erdbebebenfall, whereby mechanical Spannungs¬ spikes are reduced in the high-voltage insulators.
    Moreover, it may be expedient that the traction means are made of an elastic material and / or comprise at least one spring element, wherein at least one of the traction means, if necessary, comprises a vibration damper. The advantage here is that by this measure not only horizontal vibrations, but also vertical vibrations can be collected. Thus, a vertical "hopping" of the platform can be reduced or completely subordinated. As a result of this measure, the forces acting on the substructure in the earthquake can also be reduced.
    Finally, it can be provided that the first and / or second articulated Ver¬ bond is formed by a ball-and-socket joint, which comprises a hinged gelager¬tes ball element, which is penetrated by a bolt. The advantage here is that in such a ball element, the axis of rotation of the articulated bolt connection, and the axis of rotation of the articulated ball and socket connection in ei¬nem lying on the longitudinal axis of the traction means fixed point not be pushed towards each other. It can thereby be achieved that the platform can oscillate freely, without causing mechanical tension due to longitudinal displacements in the traction means.
    For a better understanding of the invention, this is based on the following
    Figures explained in more detail.
    In each case, in a highly simplified, schematic representation:
    Figure 1 is a perspective view of an example according to double-deck throttle coil with a mechanical base for improved earthquake resistance.
    2 shows a perspective view of the substructure with a central platform for supporting a choke coil or another high-voltage component in detail;
    FIG. 3 shows the substructure according to FIG. 2 in a view from below; FIG.
    4 shows a vertical longitudinal section through the substructure, in particular along the section line IV-IV in FIG. 3;
    Figure 5 is a vertical section through the substructure, in particular according to the section line IV - IV in Figure 3 with a rope as traction means ..;
    Figure 6 is a vertical section through the substructure, in particular according to the section line IV - IV in Figure 3 with a rod as traction means ..;
    7 shows a detailed view of an articulated connection between traction device and carrier device;
    Fig. 8 is a detail view of a connection and support between a high voltage insulator and support members;
    Fig. 9 is a graph showing a characteristic exciter frequency of an earthquake.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component designations, wherein the disclosures contained in the entire description apply mutatis mutandis to the same parts with the same Bezugszifbe. same component names can be transferred. Also, the location information chosen in the description, such as up, down, laterally, etc. related to the directly described and illustrated figure and these conditions are to be transferred in a change in position mutatis mutandis to the new situation.
    Fig. 1 shows a perspective view of a substructure 1 for a Hochspannungsbauteil 2, wherein the high-voltage component 2 is attached to the substructure construction 1 or supported. The illustrated substructure 1 serves, in particular, to enable high-voltage components 2 in electrical power supply systems to be positioned as fail-safe as possible or to ensure increased earthquake safety.
    The substructure 1 according to the invention proves to be an advantageous embodiment of the substructure construction 1, in particular when relatively heavy high-voltage components 2, such as a dry-insulated air core choke coil 3 are used. Such choke coils 3, as shown in FIG. 1, can have a unit weight of 10 tons and achieve more. Become, as inFig. 1, such choke coils 3 stacked vertically one above the other, no matter in which vertical distance from each other, so in typical applications a mass of 30 tons and more can be applied to the substructure 1.
    In addition, it may be provided that a drive voltage of 800 kV and more is applied to such choke coils 3. Thus, high demands are placed on the base construction 1, not only with regard to the mechanical load, but also with regard to their electrical insulation with respect to ground potential.
    In FIG. 2, the substructure 1 is shown in a further perspective illustration, in which the choke coils 3 are not shown, wiede¬ rum for the same parts the same reference numerals or component names as in the preceding Fig. 1 are used. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIG. The description of the figures can best be followed by a summary of FIGS. 1 and 2.
    As can be seen in Fig. 1, the substructure 1 comprises a platform 4 aufwelcher the choke coil 3 is supported load transfer. The platform 4 is suspended by means of pulling means 5 on a carrying device 6 so as to be movable in the horizontal direction. This support device 6 is part of a support structure 7. The support structure 7 further comprises supports 8, which support the support device 6 on the floor 9. The bottom 9 is defined in particular by a contact surface 10, in which the supports 8 are anchored or fastened by means of a positive or non-positive connection. For example, the support plane 10 can be realized by a concrete foundation such as a strip or dot foundation, or by a surface foundation. In certain geographical zones, it may also be necessary for the rioting level 10 to be realized, for example, by means of a pillar of foundation. According to the invention, the supports 8 are designed as high-voltage insulators, which due to their material properties can electrically insulate the increased operating voltage potential of a high-voltage component 2 from the ground potential at the bottom 9. Such high-voltage insulators 11 have, as standard, a rib-shaped surface contouring. For a simplified, illustrative representation, the high-voltage insulators 11 are shown as tubular structures in all FIGSu¬ren.
    As can be seen in FIG. 1, it may be advantageous for the substructure 1 to have six high-voltage insulators 11. However, this number of Hochspannungs¬ insulators is only for the currently present embodiment of Vor¬teil, are supported in the choke coils 3 with a total mass of about 34 tons on Hochspannungsisolatoren 11 with a length of about 10m werden.Wird the total mass of the choke coils 3 is larger, so For example, it may be necessary to use more high voltage insulators 11. However, if the load or the required construction height becomes smaller, it is also possible for three high-voltage insulators 11 to be used as a minimum. In addition, the respective earthquake zone has an influence on the dimensioning of the substructure 1.
    With regard to the selection of a suitable material for a designed as a support 8 high-voltage insulator 11 high demands on the Stärkebzw. to a certain extent the elasticity of the materials. Preferably, porcelain insulators or composite insulators are used here. Moreover, it is also possible for the insulators used to be formed as conical high-voltage insulators 12 instead of tubular structures or also as combinations of conical and tubular high-voltage insulators in one piece. Such a conical high-voltage insulator 12 is schematically indicated in FIG. 1 by dashed lines. An advantage of such an isolator formed may be that increased Biegespannun¬gen, as they may occur on Isolatorfuß 13, can be better absorbed by a larger Isolator¬ cross-section, with lower Biegespannun¬gen, as they occur on the insulator head 14, and a smaller Isolatorquer¬schnitt can be intercepted. Thus, the mass and, consequently, the production costs for such a high-voltage insulator 12 can be kept as low as possible, with the strength properties of the high-voltage insulator 12 additionally being improved.
    As can be seen in the summary of FIGS. 1 and 2, the carrying device 6 comprises a plurality of carrier elements 15, which are lined up in a ring-like or annular manner. It can be provided that the support elements 15 each have the same length 16. As a result, as shown in FIG. 2, a ring-shaped or annular arrangement of the carrier elements 15 relative to one another results, wherein a circle can be inscribed within the carrier elements 15.
    Furthermore, it can be provided that the carrier elements 15 are each supported on their front end 17 on a common high-voltage insulator 11. Hereinbei it can be provided that a transition section 18 is formed inwhich the carrier elements 15 are spaced from each other and connected to the Hochspan¬ isolation insulator 11 and thereby are electrically isolated from each other.
    Furthermore, it can be provided that the support elements 15 each have at their front end 17 a pedestal 19, by means of which the support elements 15 are supported on the high-voltage insulator 11.
    Characterized in that a support member 15 respectively at the front end 17 rests on a Hochspannungsisolator 11 or in that two front ends 17 of mutually adjacent support members 15 rest on a common high-voltage insulator 11, the number of support elements is equal to the number of high-voltage insulators 11th The exact number of carrier elements 15 or high-voltage insulators 11 required depends on the weight of the high-voltage component 2 to be applied and on the operating voltage of the high-voltage component 2 or on the dimensioning of the high-voltage insulators 11 and the carrier elements 15. In contrast to the Hochspannungsisolato¬ren 11, which are subjected to bending and buckling, the Trä¬gerelemente 15 are subjected to bending.
    In the arrangement of the individual carrier elements 15 to each other can further be provided that two mutually adjacent support members 15 are arranged at the front ends 17 each spaced at a distance 20 to each other. This may be necessary in order to avoid forming a conductive ring closure with the carrier elements 15 in which electrical voltage can be induced. A detailed illustration of the possible connection between carrier element 15 and high-voltage insulator 11 will be described in more detail in FIG.
    Furthermore, it can be provided that the traction means 5, which serve to suspend the platform 4, are each fastened in the longitudinal center 21 of a carrier element 15. This has the advantage that the traction means 5 are spaced as far as possible from the high-voltage insulators 11 and thus there is no contact between platform 4 and high-voltage insulator 11 due to the oscillatory movement of the platform 4 in the earthquake. Above all, this also reduces the risk that there will be a voltage flashover between platform 4 and high-voltage insulator 11.
    By the suspension of the traction means 5 in the longitudinal center 21 of a Trägerelemen¬tes 15, the largest bending moment occurs on the carrier element exactly in the longitudinal center 21. Under static load of the carrier element 15, that is, in the normal application case without earthquake, only a bending moment about the transverse axis of the carrier element due Vorhan¬ the mass of the suspended components vorhan¬. However, when an earthquake occurs, a horizontally acting force acts on the carrier elements 15 due to the oscillating movement of the platform 4. This is to be considered in the selection of suitable carrier elements 15. An I-beam, for example, would be well suited for absorbing bending moments around the transverse axis, with additional bending moments about the vertical axis, but due to horizontal shear forces there is a risk of buckling of the beam. For this reason, a hollow profile, such as a forming tube, has proved advantageous for use as a carrier element 15, which has a high area moment of inertia both with respect to the transverse axis and with respect to the vertical axis.
    Furthermore, it can be provided that the traction means 5 is connected to the platform 4 by means of a first articulated connection 22 and to the carrier device 6, in particular a carrier element 15, by means of a second articulated connection 23. Possible embodiments of the articulated connection 22, 23 will be shown or described in more detail in Fig. 7 in more detail.
    As is further apparent from FIG. 2, provision can be made for a field control device, in particular a corona ring 24 or a dome-shaped closing element, to be arranged in the region of the first articulated connection 22 and / or in the region of the second articulated connection 23. Through the use of a Ko¬ronaringes 24 or a dome-shaped end element, the risk of the occurrence of electrical discharges or partial discharges against the atmosphere can be prevented or largely avoided.
    In Fig. 3, the substructure 1 is shown in a plan view, wiede¬rum for the same parts the same reference numerals or component designations as indenden previous Figures 1 and 2 are used. In order to avoid unnecessary repetitions, reference is made to the detailed description in the preceding Figures 1 and 2 or reference is made.
    As can be seen in a combination of FIGS. 2 and 3, it can be provided that the platform 4 is formed by a plurality of support arms 25, which are connected to one another in a central node 26. By means of this star-shaped arrangement of the individual support arms 25, it can be achieved that a traction means 5 can be fastened to a support arm 25 in each case.
    As an alternative to a variant embodiment in which the support arms 25 are fastened to one another at a common node point, it can also be provided that the support arms 25 are fastened to a centrally arranged connection element, such as an annular structure.
    The support arms 25 are preferably designed such that they have seen across the longitudinal direction 27 different cross-sectional dimensions, where the cross section is adapted to the bending moments occurring in each case. Since a support arm 25 is fastened to a traction means 5, the number of support arms 25 is preferably chosen to be the same as the number of traction means 5 present.
    In the common node 26, the individual support arms 25 by a stoffschlüssigen connection, such as a welded connection be ver¬bunden with each other. In an alternative variant, it is also conceivable that the individual support arms 25 are screwed together by means of a screw connection. Such a screw connection can be realized, for example, with the aid of a so-called nodal plate 28, which is connected at node 26 to the individual support arms 25.
    As can be seen in FIG. 3, an angle 29, in which two support arms 25 are arranged one on the other, depends on the number of support arms 25 inserted. Preferably, the platform 4 is designed so that the angle 29 between the individual support arms 25 is the same is large, so that the characteristic, star-shaped appearance of the platform 4 results.
    In a first embodiment, it can be provided that the high-voltage component 2, in particular the choke coil 3, is fastened directly to the platform 4.
    In an alternative variant, it can be provided, as can be seen in FIG. 2, that support elements 30, which are provided for receiving the high-voltage component 2, are arranged on the platform 4, in particular on the support arms 25. The support elements 30 are in particular provided to space the high-voltage component 2 from the metallic platform 4. This has the advantage that the support device 6 is not arranged directly in the vicinity of the Hochspannungsbauteils 2, whereby the risk of a possible voltage flashover between high voltage component 2, in particular Dros¬selspule 3, and support device 6 is reduced.
    The support elements 30 are preferably arranged approximately in the middle of a support arm 25. The support elements 30 form a contact surface 31, on which the high-voltage component 2 can be placed and which can support the high-voltage component 2 sufficiently well. In order to achieve a correspondingly large contact surface 31 for optimum load distribution, provision may be made for the support elements 30 to comprise not only a strut 32 but also a connecting element 33, by means of which the contact surface 31 is enlarged. The connecting element 33 can be formed, for example, from a shaped profile, which can be connected to the strut 32, for example, by a frictional connection, such as a welded connection.
    In Fig. 4, the longitudinally varying cross-section of the support arm 25 is clear, and it can also be seen that the cross section is at least approximately adapted to the Biegemomen-tenverlauf. To be able to carry out the support arm 25 with the highest possible rigidity with the lowest possible weight, it can be provided that, as can be seen in FIG. 4, the support arm 25 is designed as a shaped element, in particular as a sheet-metal forming part.
    Fig. 4 shows a sectional view, in particular according to the section line IV - IV of FIG. 3, wherein in turn the same reference numerals or component parts are used for the same parts.
    Drawings as used in the preceding figures 1 to 4. To avoid unnecessary repetition, reference is made to the detailed description in the preceding figures 1 to 3.
    In a preferred embodiment, as shown in Fig. 4, the pulling means 5 may be designed as a pull rod 34. In addition, in FIG. 4, the first articulated connection 22 and the second articulated connection 23, which may for example be designed as a bolt connection, are clearly recognizable. In particular, it can be seen that a length 35 of the traction means 5 is defined by a distance 36 of the articulated connections to one another becomes. In particular, the distance 36 extends from an axis of rotation 37 of the first articulated connection 22 to an axis of rotation 38 of the second articulated connection 23. The articulated connections 22, 23 are respectively formed in the end sections or end areas of the traction means 5.
    The length 35 of the traction mechanism 5 influences the first natural frequency of the overall system. More precisely expressed, the first eigenfrequencies of the overall system are influenced by the length of the high-voltage insulators 11 and the length 35 of the pulling means 5 or their ratio to one another, whereby the direct relationship can not be expressed in a simple formula due to the complexity of the overall system.
    As can further be seen from FIG. 4, it can be provided in a preferred embodiment that in the rest position of the platform 4 the axis of rotation 38 of the second pivot joint 23 is positioned vertically above the axis of rotation 37 of the first pivot joint 22. Thus, in the rest position of the platform 4, a vertical orientation of the traction means 5 results.
    Furthermore, it can be provided that, as indicated schematically in FIG. 4, at least one damping element 39 is arranged between the platform 4 and the support structure 7, by means of which a horizontal oscillating movement can be damped. For the possible positioning of the damping element 39, there are various possible embodiments, which will not be described in detail here.
    4, a length 40 of the support element 30 is to be interpreted as a function of the length 35 of the traction means 5. As already mentioned, the length 40 of the support element 30 is preferably selected to be so large that a high-voltage component 2 placed on the contact surface 31 is placed as far as possible above the support device 6 or at least predominantly above the support device 6 and thus as large as possible Distance to the support device 6 has.
    Furthermore, it can be provided that, as schematically indicated in FIG. 4, the pulling means 5 is made of an elastic material and / or comprises at least one spring element 41, by means of which the length 35 of the pulling means 5 is elastically variable. Such a spring element 41 could, for example, form part of the pulling means 5. In this case, it is conceivable, for example, for an intermediate section of the traction mechanism 5 to be formed by the spring element 41. Furthermore, it is also conceivable that the traction means 5 is telescopically guided into one another and the spring element 41 is arranged inside the traction means 5.
    In addition, it is also conceivable that, as schematically indicated, a vibration damper 42 is designed by which the elastic movement of a traction element 5 designed with a spring element 41 is damped. Also, this vibration damper 42 may be integrated into the traction means 5, for example. Moreover, it is also possible that the vibration damper 42 is arranged paral¬lel to the traction means 5.
    FIG. 5 shows a further embodiment of the substructure 1, which is possibly independent of itself, wherein the same reference numerals or component designations are again used for the same parts as in the preceding FIG. 4. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIG. 4 or referenced.
    In the embodiment variant shown in FIG. 5, it can be seen that it is also possible for the traction means 5 to be designed, for example, as a cable 43. The rope 43 can be fastened, for example, to the platform 4 or to the carrying device 6 using a rope thimble, the first articulated connection 22 or the second articulated connection 23 being achieved by the inherent flexibility of the rope 43. Thus, by means of such a system or such a cable connection, the platform 4 is freely swingable in the horizontal direction. In addition, it can be provided that the cable 43 is designed as elastic rope, whereby the above-described cushioning or damping effect is achieved. However, the cable 43 can also be designed as an endless, ring-shaped cable loop, which can be achieved by these Doppelsträngigkeittechnische advantages in terms of tensile strength and cable guide.
    FIG. 6 shows a further embodiment of the substructure 1, which is possibly independent of itself, wherein the same reference numerals or component designations are again used for the same parts as in the preceding FIGS. 4 and 5. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 4 and 5.
    As can be seen in the further embodiment variant shown in FIG. 6, it is also possible for the traction means 5 to be in the form of a rod 44, which is connected, for example, to the carrier device 6 or the platform 4 by means of a non-positive or integral connection. In such an embodiment variant, the articulated connections 22, 23 are realized in that an elastic deformation of the rod 44 can occur.
    FIG. 7 shows a detailed view of a preferred embodiment variant of the articulated connections 22, 23, wherein these are preferably designed in combination with a pull rod 34. As can be seen from FIG. 7, it can be provided that the articulated connections 22, 23 are realized by a ball head connection 45. It can be provided that a ball element 46 is penetrated by a bolt 47. The ball element 46 is hereby preferably pivotably mounted in a corresponding ball seat 48, so that the pulling means 5 can be pivoted in the pivoting direction 49 relative to the bolt 47. In addition, it is provided that either the ball member 46 relative to
    Bolt 47 with respect to a pin axis 50 is pivotable, or that the bolt 47 relative to a fork 51, in which the bolt 47 is received, with respect to the pin axis 50 is pivotable. By this embodiment of the articulated connection 22, 23 it can be achieved that the traction means 5 can be freely displaced in all directions with respect to the platform 4 or the carrying device 6.
    Furthermore, it can be provided that the ball seat 48 is adjustable in the adjustment direction 52 with respect to the pull rod 34. It can thereby be achieved that the length of the traction means 5 is adjustable. This is advantageous in order to be able to compensate, for example, manufacturing tolerances in the substructure 1 and to be able to set up the platform 4 as exactly as possible in the horizontal. Of course, this adjustability of the length of the traction means 5 can also be provided at a different position of the traction means 5.
    8 shows a side view of the detail of a possible embodiment variant for connecting two adjacent carrier elements 15, in particular of their front ends 17 with a common high-voltage isolator 11 designed as support 8. As can be seen in FIG. 8, it can be provided that an elastic Intermediate element 53 is formed, which is introduced between the insulator head 14 and stand 19. This elastic intermediate element 53 is intended to be able to compensate for a tilting or pivoting movement 54 of the high-voltage insulator 11 occurring during an earthquake, so that there is no failure of the connection between the carrier element 15 and the high-voltage insulator 11. In particular, by the elastic Zwischen¬element 53, an angular offset between the high-voltage insulator 11 and the supporting elements lying thereon 15 can be compensated.
    The elastic intermediate member 53 may be formed of, for example, an elastic plastic material. Of course, it is also conceivable that another material is used here. In addition, it can be provided that the elastic intermediate element 53 is formed from an electrically insulating material so that two mutually adjacent carrier elements 15 are electrically isolated from each other.
    9 shows in a diagram the transverse accelerations caused in the case of an earthquake, which occur more intensely in a certain frequency spectrum. The abscissa here shows the excitation frequency generated by the earthquake on a logarithmic scale. On the ordinate the expected lateral acceleration is plotted as a function of the frequency. The absolute value of the acceleration actually to be expected according to the standard depends on the geographic location of the potential installation site, whereby a representation with standardized acceleration was selected for illustration, with 100% of the acceleration corresponding to the highest acceleration value according to the standard or the location ,
    As can be seen from the graph, the maximum accelerations occur in a frequency spectrum of about 1 Hz to about 10 Hz. Depending on the type of installation, conventional substructure constructions for establishing a throttle coil have a first natural frequency, which lies precisely in this critical frequency range, which can lead to a resonance catastrophe in the event of an earthquake.
    Due to the inventive design of the substructure 1, in particular by adjusting the length 35 of the traction device 5 as a function of the length of the high voltage insulator 11, it can be achieved that the first Ei¬genfrequenz of the inductor substructure system in an operating range 55von about 0.4Hz 0.5Hz is shifted. Thus, the maximum accelerations occurring in this case are significantly lower, which leads to an increased seismic safety.
    Due to the construction of the substructure 1 according to the invention can also be achieved that the high-voltage insulators 11 act as a vibration damper, whereby the earthquake safety is also positively influenced.
    Depending on the height of the voltage applied to the high-voltage component 2, as a function of the length of the high-voltage insulators 11 used and depending on the length of the traction means 5, the platform 4 is mostly more than 1 m above the ground level. Especially in power supply networks in the high- & High voltage range, both DC and AC, is the platform 4 with the choke coil 3 up to 20m above the ground level, which requirements are met by the erfindungsge¬mäße substructure 1 in an advantageous manner.
    The embodiments show possible embodiments of the Unterbau¬konstruktion 1, wherein it should be noted at this point that the invention is not limited to the specific embodiments shown embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this possibility of variation due to the teaching of technical action by objective invention within the skill of those skilled in this technical field.
    Furthermore, individual features or combinations of features from the different embodiments shown and described can also represent solutions that are inventive, inventive or inventive.
    The problem underlying the independent inventive solutions can be taken from the description. All statements on ranges of values in the description given herein are to be understood as including any and all subsections thereof, for example, the indication 1 to 10 should be understood as encompassing all subranges, starting from the lower bound 1 and the upper bound 10, i. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    Above all, the individual embodiments shown in FIGS. 1 to 3, 4, 5, 6, 7 and 8 can form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    For the sake of order, it should finally be pointed out that in order to better understand the construction of the substructure, these or their components have been shown partly unevenly and / or enlarged and / or reduced in size.
    LIST OF REFERENCE NUMERALS 1 substructure 28 gusset plate 2 high-voltage component 29 angle 3 choke coil 30 support element 4 platform 31 footprint 5 traction means 32 strut 6 support device 33 connecting element 7 support structure 34 pull rod 8 supports 35 length 9 floor 36 distance articulated connection 10 fertilize each other upstand 11 high-voltage insulator 37 axis of rotation first rotary joint 12 conical high-voltage shock shaft 38 second rotor pivot shaft 13 isolator base 39 damping element 14 insulator head 40 length support element 15 support element 41 spring element 16 length support element 42 vibration damper 17 front end 43 cable 18 transition section 44 rod 19 pedestal 45 ball-head connection 20 distance support elements 46 ball element 47 Bolt 21 Longitudinal center 48 Ball seat 22 First articulated connection 49 Swivel direction 23 Second articulated connection 50 Bolt axis 24 Coronary ring 51 Fork 25 Support arm 52 Adjustment direction 26 Junction 53 Elastic it intermediate element 27 longitudinal direction of Tragar- 54 pivoting movement with 55 operating range
    权利要求:
    Claims (19)
    [1]
    1. Substructure Construction (1) for increasing the seismic safety of at least one high-voltage component (2), in particular a choke coil (3) for electric power supply networks, comprising a platform (4), which is designed for load-carrying the high-voltage component (2) and which platform (4 ) is suspended by at least three traction means (5) on a support (6) of a support structure (7), the platform (4) being connected to the traction means (5) by a first articulated connection (22), and the drawing means (5) 5) by a respective second articulated connection (23) with the Tragvorrich¬ tung (6) are connected, which supporting device (6) by means of at least three supports (8) on the bottom (9) is supported, characterized in that the Supports (8) are formed by high-voltage insulators (11) made of electrically insulating material, which electrically insulate the at least one high-voltage component (2) against ground potential n load-bearing on the ground (9).
    [2]
    Substructure according to Claim 1, characterized in that it has a length (35) of traction means (5), in particular a distance (36) between the first articulated connection (22) and the second articulated connection (23), between 0,3m and 3m, especially between 1.3m and 1.5m.
    [3]
    3. substructure construction according to claim 1 or 2, characterized gekennzeich¬net that the traction means (5) are aligned vertically and parallel to each other between the support device (6) and the platform (4) are arranged.
    [4]
    4. substructure Construction according to one of the preceding claims, characterized in that the traction means (5) in the form of tie rods (34) are formed.
    [5]
    5. substructure construction according to one of claims 1 to 3, characterized ge indicates that the traction means (5) by ropes (43) are formed.
    [6]
    6. substructure according to any one of the preceding claims, characterized in that the traction means (5) are formed of an electrically insulating material.
    [7]
    Substructure construction according to one of the preceding claims, characterized in that the support device (6) comprises at least three support elements (15), which support elements (15) have at least approximately the same length (16) and are lined up in a ring-like or annular manner, at least two Carrier elements (15) are arranged at their mutually facing front ends (17) at a distance (20) from each other.
    [8]
    8. substructure according to claim 7, characterized in that the two front ends (17) of juxtaposed support members (15) are each supported on a common high-voltage insulator (11).
    [9]
    9. substructure according to claim 7 or 8, characterized gekennzeich¬net that at least one transition section (18) between successive, annularly lined-up support elements (15) is electrically insulating executed.
    [10]
    10. substructure according to claim 8 or 9, characterized gekennzeich¬net that between at least one of the high-voltage insulators (11) and dendarauf supported support elements (15), an elastic intermediate element (53) is arranged.
    [11]
    11. substructure according to one of the preceding claims, characterized in that at least one of the traction means (5) in the Längsmit¬te (21) of at least one of the carrier elements (15) is connected to this carrier element (15).
    [12]
    12. substructure according to one of the preceding claims, characterized in that on the platform (4) at least one support element (30) is arranged, with which the high-voltage component (2) in a vertika¬len distance to the platform (4) can be accommodated.
    [13]
    13. substructure according to claim 12, characterized in that the at least one support element (30) is formed of an electrically insulating material, so that the high-voltage component (2) relative to the platform (4) is electrically insulated.
    [14]
    14. substructure according to one of the preceding claims, characterized in that at least one of the articulated connections (22, 23) at least one field control device, in particular a corona ring (24) is arranged.
    [15]
    Substructure according to one of the preceding claims, characterized in that between the platform (4) and the support structure (7) at least one damping element (39) is arranged for damping horizontal oscillatory movements of the platform (4).
    [16]
    16. substructure according to any one of the preceding claims, characterized in that the platform (4) in view of the Aufstandsebeneder support structure (7) is star-shaped, wherein individual support arms (25) of the platform (4) at a common node (26) with each other are bound.
    [17]
    Substructure construction according to one of the preceding claims, characterized in that the high-voltage insulators (11) are arranged axially parallel to one another to form the support structure (7).
    [18]
    18. substructure according to one of the preceding claims, characterized in that the traction means (5) are made of an elastic material and / or at least one spring element (41), wherein at least one of the traction means (5), if necessary, a vibration damper (42). includes.
    [19]
    19. substructure according to one of the preceding claims, characterized in that the first (22) and / or second articulated Verbin¬ dung (23) by a ball joint (45) is formed, which comprises a hinged ball element (46), which of a Bolt (47) is enforced.
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    同族专利:
    公开号 | 公开日
    EP3170232A1|2017-05-24|
    CA2961261A1|2016-01-21|
    AT516245B1|2017-06-15|
    WO2016007982A1|2016-01-21|
    US20170207608A1|2017-07-20|
    EP3170232B1|2018-05-09|
    US10658821B2|2020-05-19|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50502/2014A|AT516245B1|2014-07-18|2014-07-18|Substructure to increase the seismic safety of a high-voltage component|ATA50502/2014A| AT516245B1|2014-07-18|2014-07-18|Substructure to increase the seismic safety of a high-voltage component|
    EP15756813.0A| EP3170232B1|2014-07-18|2015-07-17|Substructure for increasing the earthquake resistance of a high-voltage component|
    CA2961261A| CA2961261A1|2014-07-18|2015-07-17|Substructure for increasing the earthquake resistance of a high-voltage component|
    PCT/AT2015/050171| WO2016007982A1|2014-07-18|2015-07-17|Substructure for increasing the earthquake resistance of a high-voltage component|
    US15/326,803| US10658821B2|2014-07-18|2015-07-17|Substructure for increasing the earthquake resistance of a high-voltage component|
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