Classifications

• • 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
  • H02G5/00—Installations of bus-bars
  • H02G5/06—Totally-enclosed installations, e.g. in metal casings
  • H02G5/066—Devices for maintaining distance between conductor and enclosure
  • H02G5/068—Devices for maintaining distance between conductor and enclosure being part of the junction between two enclosures

Definitions

• the invention relates to an arrangement with a Isolierstoff ⁇ body, which has a aligned in an axial direction of the conductor receiving and is limited by at least one wesent ⁇ union in the circumferential direction to the axial direction extending surface.
• Such an arrangement is known, for example, from Offenlegungsschrift DE 197 25 311 A1.
• an insulating ⁇ material body is shown in the form of a disc insulator, wel- relative to an axial direction of a conductor receiving a substantially circular contour.
• Several adjacent substantially circumferentially extending to the axial direction surfaces surround and limit the insulating body.
• the invention is therefore based on the object to design a Anord ⁇ tion of the type mentioned, which has a reduced Isolierstoff pad and simplified as a fluid barrier can be used.
• this object is achieved in an arrangement of the type mentioned above in that the Scheibeniso ⁇ lator has a recess with an access opening, wherein at least one extending transversely to the axial direction of the access opening limiting section in the surface.
• An insulating body preferably serves to position an electrical conductor with respect to another body, wherein the insulating material has such a high impedance that the propagation of current paths between the electrical conductor and the other body is restricted.
• the conductor receptacle is aligned such that an electrical conductor can pass through the insulating material body in the axial direction, the insulating material body encompassing and enclosing the electrical conductor.
• disk insulators have an essentially disk-like structure, whereby they can also have ribs, bends, bulges, web-like structures, etc., as a result of which the electrical insulation capacity or the mechanical properties of the insulation body are improved.
• a surface which extends in the circumferential direction to the axial direction may be formed, for example, in the manner of a section of a lateral surface of a cylinder. In addition, however, others can
• the surfaces can be flat or curved.
• the essentially borrowed transverse to the axial direction surfaces should be arranged circumferentially around the insulating body.
• the surface preferably extends on a coaxial to the Achsrich ⁇ circumferential orbit. In an ideal case, an area is in closed circular formed circumferentially around the axial direction.
• the necessary volume of insulating material can be reduced to form the disc-like structure of the insulating material, without adversely affecting a fluid tightness of the insulating material.
• a suitable introduction and shaping of the recesses on the one hand a low-mass insulating material body can be formed, which requires a correspondingly reduced volume of insulating material.
• a mechanically stable insulating material can be formed on the other hand.
• an insulating body having an approximately circular contour in an axial plan view of the insulating body, wherein at least in its edge region one or more circumferential surfaces are provided.
• a sealing means may be arranged on the insulating body in order, for. B. establish a fluid-tight connection to a flange of an encapsulation ⁇ housing of a compressed gas-insulated electric energy transfer ⁇ device.
• the conductor receptacle extends in a fluid-tight manner around the conductor to be accommodated.
• the conductor receptacle can extend channel-like in axial direction ⁇ tion and be designed, for example, rotationally symmetrical.
• a conductor may be flush with the conductor receptacle.
• the insulator body is provided with openings which pass through in the axial direction, so that channels for the overflow of fluids are formed through the insulator body.
• Such channels may additionally or exclusively also be provided on a conductor arranged within the conductor receptacle .
• At least one wall should be retained on the recess, which has a connection with the area extending in the circumferential direction.
• the access opening should preferably extend substantially radially to the axial direction, so that a pocket-like recess is formed, which can be filled with other components, for example.
• the possibility is given in the radial direction, for example, to arranged within the recess devices, connections or supply lines through the ring encircling structure into the interior of the insulating insert , Since ⁇ by remain transverse to the axial direction surfaces free of attachments. Thus, these surfaces, which may be Fluids are exposed as possible free of impurities from ⁇ designed.
• the arrangement with the insulating material in the manner of a cover spans an opening of an encapsulating housing. In the interior of the encapsulating it can electrically isolie ⁇ -saving gases such as sulfur hexafluoride o. ⁇ .
• ⁇ be integrally arranged. These are usually subjected to increase their e- lectric insulation resistance with an increased pressure. If now a radial alignment of the recess is provided on the insulating body, the surfaces oriented transversely to the axial direction remain free of recesses. However, it can also be provided that the recess has an access opening which allows access both radially to the axial direction and axially to the axial direction. In this case, based on a plane which is aligned substantially transversely to the axial direction, only one wall provided axially adjacent to the recess is formed such that it is free of the access opening of the recess.
• Insulating body in the manner of an end closure, for example ⁇ closes an encapsulating to prevent fluids located in the interior of the encapsulating housing from leaking.
• the region of the insulating material body facing away from the interior can then be accessible, for example, from the outside via the section of the access opening extending within a lateral wall of the insulating body. This can be used, for example, within the recess.
• the opening area of the recess or the access opening extends on the one hand in a substantially radial or skewed and on the other in a substantially aligned transversely to the axial direction surface.
• the off ⁇ recess is bounded by at least one extending transversely to the axial direction of flat wall.
• a similar limitation on both sides of the recess bezo ⁇ gene on the axial direction makes it possible to form a defined Zu ⁇ opening opening, which is accessible in a simple manner from the radial direction.
• the recess in its mouth region is completely bounded by one or more surfaces that circulate essentially in the circumferential direction to the axial direction.
• the recess is introduced in the manner of a bag-shaped depression in the radial direction relative to the axial direction into the insulating body.
• the recess is substantially slot-shaped.
• a slot-shaped configuration of the recess allows an advantageous use of the available space in a sector-shaped portion of the insulating material. It can be provided that the recess has, for example, an arcuate course, so that a relatively volume-large space is provided to position other devices within the insulating material.
• a wall delimiting the recess is arched.
• a wall bounding the recess may advantageously have a curvature. This makes it possible, depending on the location of the conductor receiving while maintaining the necessary e- lectric insulation distances on the insulating material to provide the largest possible volume for the recess.
• the insulating material body has a circular contour, wherein the Ausneh ⁇ tion is arranged coaxially with a conductor receiving.
• a plurality of conductor receptacles are provided within a circular outer contour, so that a plurality of electrical conductors can break through the insulating material body.
• three conductor receptacles can be provided, which are arranged within the Isolierstoff emotionss such that they lie at vertices of an equilateral triangle. Due to the curvature of the wall, a suitable receptacle can furthermore be made available in order to position correspondingly oppositely shaped devices within the recess.
• the wall is arched in the manner of a cylinder jacket surface to form a cylinder axis.
• a curvature in the manner of a cylinder jacket surface can be used favorably, for example, screen assemblies, antennas or the like to be positioned within the recess.
• the curvature of the corresponding device and the wall should be coordinated with each other, so that a gegenglei ⁇ che shape is given. This ensures that the device is relatively close to the curved wall of the insulating material, so that a large portion as possible ⁇ SSER of insulating material of the insulating material is filled between ⁇ the device and an e- lektrischen conductors in a conductor receiving. This ensures that a defined environment is given on the device. For example, edge ⁇ conditions in terms of insulating properties of the Isolierstoffmaterials compared to an undefined material mix are determined simplified.
• a further advantageous embodiment can provide that the cylinder axis of the curved wall extends substantially parallel to the axial direction.
• At least one wall has a rear grip in the bottom region of the recess.
• the Hintergreifung can for example be used to position a device to be introduced into the recess.
• two mutually opposite walls have mutually opposite ⁇ aligned recesses.
• elastic deformation of holding elements of a recess to be introduced into the training device a form-locking positio ⁇ discrimination of the device.
• the recess receives a measuring device.
• a measuring device can serve for example for monitoring a state of a position in a conductor receiving ⁇ the electrical conductor.
• the measuring device can detect an electrical voltage or an electrical current on an electrical conductor. It can be advantageously provided, for example, that a charging a measuring surface of the measuring device is provided for the voltage ⁇ measurement, so that, for example, qualitative or quantitative information about a voltage, with which an e- lectrical conductor is applied, can be made.
• the measuring device includes a domed ⁇ to the axial direction of the measuring surface on ⁇ .
• the curved measurement surface of the arcuate wall should be ⁇ arranged.
• the dielectric between an electrical conductor arranged in a conductor receptacle and the measuring surface is substantially offset by the insulating material.
• the surrounding environment ⁇ the measuring device for extended periods should be regarded as stable.
• a further advantageous embodiment can provide that a fluid is arranged between the curved wall and the measuring surface.
• An introduction of a fluid into a space which is arranged between the curved wall and the curved measuring surface leads to a dielectric stabilization of this region.
• the measuring surface can be arranged spaced to the vault ⁇ th wall. Direct contact between measuring surface and curved wall poses the risk of transporting partial discharges within this range.
• Partial discharges could adversely affect both the insulating material and the measuring surface.
• a further object of the invention is to specify a simplified method which is suitable for producing an insulating material body with a conductor receptacle extending in an axial direction and with a recess in the insulating material body.
• the object is achieved with a method of the type mentioned at the outset a ⁇ characterized in that for the formation of Recess a measuring device is shed with the insulating body.
• Potting the measuring device with the Isolierstoff emotions gives the possibility to position the measuring device directly to the insulating body.
• the shape of the measuring device is used to introduce a recess in the insulating body, that is, the measuring device is at least partially used as a mold for the insulating material, said after casting this mold remains in ⁇ example, on the insulating body.
• At least one sealing means is arranged on the measuring device, which prevents backflow of the measuring device with fluid insulating material on a side of the measuring device facing away from a measuring surface.
• a sealant allows recesses to be provided on the insulating body having an access opening extending substantially radially to an axial direction.
• the sealant is designed such that a backflow of the measuring device is prevented with a liquid insulating material and thus an externally accessible pocket is formed in the insulating body.
• a sealant for example, circumferential O-rings, which on the one hand develop a sealing effect and on the other hand ensure a resilient mounting of the measuring device after curing of the insulating material. At least because of one Partial non-binding of applied from the measuring surface side of the measuring device, can continue to be accessed on the measuring device and, for example, maintenance or assembly work on the measuring device can be made. If an arrangement of a corresponding separating means is provided in the region of the measuring device, the measuring device can be removed from the I-solulant body after curing of the insulating body and optionally replaced.
• Figure 1 is a plan view in the axial direction of an insulating material in a first embodiment variant, the
• Figure 2 is a plan view in the axial direction of an insulating material body in a second embodiment variant, the
• FIG. 3 shows a section through a section of the insulating material in the first embodiment variant with a recess
• Figure 4 shows a third embodiment variant of an insulating ⁇ body partially cut
• FIG. 5 shows a section along an axis II as marked in FIG.
• FIG. 1 shows a first embodiment variant of an insulating material body 1a.
• the first embodiment ⁇ variant of the insulating material Ia has a circular cross-section.
• the first embodiment variant of an insulating body Ia is coaxial about an axis 2 which defines an axial direction.
• the axis 2 protrudes ⁇ perpendicular to the plane of the figure 1 out.
• Next ⁇ out is permitted with a first conductor receiving 3a of a second conductor receiving 3b and a third conductor receiving 3c ⁇ the first embodiment variant of an insulating material ⁇ body Ia.
• the conductor receivers 3 a, 3 b, 3 c pass completely through the first embodiment variant of an insulating body 1 a in the direction of the axis 2.
• the conductor receivers 3 a, 3 b, 3 c are designed essentially as the first variant of an insulating body 1 a completely penetrating recesses with a rotationally symmetrical course.
• electrical conductors can be used in the conductor receptacles 3a, 3b, 3c.
• the electrical conductors should preferably be inserted in a fluid-tight manner in the conductor receptacles 3a, 3b, 3c.
• the conductor receivers 3 a, 3 b, 3 c each have the same radial distance from the axis 2 and are distributed uniformly about the axis 2.
• FIG. 1 The first embodiment variant of an insulating body 1a is shown in FIG. 1 in a cut form.
• the first embodiment variant of an insulating body 1a has a substantially cylindrical outer contour, whereby surfaces of the first embodiment variant of an insulating body 1a can also be provided with ribs, bulges, etc., or the insulating body itself with a curved shape while maintaining the circular circumference or similar shape may be provided.
• Distributed symmetrically on the circumference are a first recess 4a, a second recess 4b and a third recess 4c arranged on ⁇ .
• the recesses 4a, 4b, 4c are respectively symmet ⁇ driven via conductor chucks 3a, 3b, 3c arranged.
• one of the recesses 4a, 4b, 4c is assigned to one of the conductor receptacles 3a, 3b, 3c.
• the recesses 4a, 4b, 4c have a slot-like structure, wherein ih re ⁇ access openings each open in an area which surrounds the periphery of the first embodiment variant of an insulating material ⁇ body Ia.
• the walls which are aligned parallel to the plane of the drawing and delimit the recesses 4a, 4b, 4c have a planar structure.
• the bottom portions of the Ausneh ⁇ rules 4a, 4b, 4c are provided with arcuate walls. In this case, the axis of curvature of these curvatures is parallel to the axis 2.
• the recesses 4a, 4b, 4c in the direction of rotation of the surface frontally bounding walls are provided with undercuts 5. These undercuts 5 are incorporated in the transition region between the curved bottom wall and the end walls disposed perpendicularly thereto in the insulating material of the first embodiment variant of an insulating material 1.
• resins or other organic and inorganic substances are suitable as insulating material.
• FIG. 2 shows a second embodiment variant of an insulating body 1b.
• the second Ausgestal ⁇ tion variant of an insulating material Ib has only a single conductor receiving 3d.
• the single conductor receptacle 3d is arranged with its circular cross-section concentric with the axis 2. Since only a single conductor receiving ⁇ 3d is provided, the second embodiment variant of an insulating material Ib is also only a single Recess 4d assigned.
• the axis 2 and the curvature axis of the bottom portion of the single recess 4 d are cover ⁇ same arranged.
• the other construction and operation ent ⁇ says the representation of FIG. 1
• FIG. 3 shows a section of the first recess 4a of the first embodiment variant of an insulating material body 1a.
• a measuring device 7 is introduced in the first recess 4a.
• the measuring device 7 has a bow-like running structure, which conforms to the bottom wall of the first recess 4a.
• the arcuate structure of the measuring device 7 is formed substantially in the manner of a hollow cylinder segment.
• the measuring device has an electrically insulating carrier material, which is provided on its side facing the first conductor receptacle 3a with an electrically rechargeable measuring surface. Between the mutually facing regions of the measuring device 7 and the first recess 4a a spacing is provided, whereby a cavity 6 is formed.
• the cavity 6 can be filled with a fluid, for example with an electrically insulating gas.
• the ends of the measuring device 7 are inserted into the Schugreifept 5 of the first recess 4 a, so that the position of the measuring device 7 is set within the recess 4 a.
• the measuring device 7 is designed elastically deformable and is inserted under elastic deformation in the recesses 5.
• elastically deformable carrier material for example, a silicone may be provided, which may be provided with a corresponding electrically conductive coating for forming the measuring surface.
• the circular structure of the first embodiment variant of an insulating material clasping Ia, the first off ⁇ design variant of a insulating material Ia is assigned a ring.
• the ring 8 surrounding the first insulating body of a Ausassisvarian- te Ia and closes this completeness, a ⁇ dig.
• the measuring device lying within the first recess 4a is bounded or covered on all sides by walls of the insulating material body 1a or by the ring 8.
• the ring 8 further has a channel 9, through which connection lines 10 are passed for the measuring device 7.
• a sealing element IIa is arranged on the side of the measuring device 7 facing away from the first conductor receiving 3a.
• the sealing element IIa is designed in the form of an O-ring, which rests in the region of body edges of the arcuate part of the measuring device 7.
• a mold is first prepared.
• the ring 8 serve.
• the measuring device 7 is then positioned and this is preferably provided with a sealing element 11.
• an insulating material in fluid form is introduced into this mold.
• the insulating material clings to the mold and cures there.
• the mold is removable, wherein the measuring device 7 remains connected to the insulating material.
• the sealing element 11 serves to prevent backflow of the measuring device 7 with liquid insulating material.
• the casting mold as shown in the example of FIG. 3, furthermore remains connected to the insulating body as an annular frame.
• the conductor on ⁇ acquisition 3a, 3b, 3c are also formed. It can be provided that during casting with training of the conductor receiving
• Figures 4 and 5 show a third embodiment variant of a Isolierstoff stresses Ic.
• an off ⁇ is cut to the third embodiment variant of an insulating material body ⁇ Ic sectionally shown.
• the third Ausges ⁇ taltungschange one insulating material Ic also has a substantially circular contour.
• the third embodiment variant of an insulating body Ic is circumferentially stepped off.
• Randbe ⁇ rich circular peripheral grooves 12a, 12b formed which serve, for example, a guide of a frame.
• a recess 4e is introduced in a surface 13, which circumscribes about the axis 2
• a recess 4e is introduced.
• the recess is provided with an access opening, which is relative to the axis 2, accessible only from the radial direction.
• the walls which define the recess 4e transverse to the axis 2, are designed such that they extend similarly to the surface 13 ⁇ out.
• the disc-shaped form of the third embodiment variant of an insulating material body ⁇ Ic is given on both sides of a boundary of the recess.
• the recess 4e in this case has a slot-shaped structure, so that within the Isolierstoff emotionss a kind of bag is created, which may be provided for receiving further devices.
• FIG. 5 shows a supplement to the third embodiment variant of an insulating material body Ic shown in FIG. 4 in a section along the axis II.
• a frame 8a is continuously placed around the axis 2 to the third embodiment variant of an insulating material Ic.
• the frame 8a is guided by means of the recesses 12a, 12b.
• the frame 8a covers the access opening of the recess 4e in the radial direction.
• the recess 4e is limited in the axial direction on both sides of similar walls of the third embodiment variant of an insulating material Ic.
• the access ⁇ opening has an arcuate curvature and opens into a coaxially to the axis 2 circumferential surface. 13

Landscapes

• Insulating Bodies (AREA)
• Insulators (AREA)
• Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
• Casings For Electric Apparatus (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

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Citations (6)

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• 2007
  • 2007-11-16 DE DE102007056147A patent/DE102007056147A1/de not_active Withdrawn
• 2008
  • 2008-10-28 RU RU2010123635/07A patent/RU2485655C2/ru not_active IP Right Cessation
  • 2008-10-28 WO PCT/EP2008/064564 patent/WO2009062841A1/de active Application Filing
  • 2008-10-28 EP EP08849016A patent/EP2210323A1/de not_active Ceased
  • 2008-10-28 CN CN200880116486.8A patent/CN101868896B/zh not_active Expired - Fee Related

Patent Citations (6)

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