EP0437431A1 - Installation haute tension a cuirasse metallique et a isolation par gaz comprime - Google Patents

Installation haute tension a cuirasse metallique et a isolation par gaz comprime

Info

Publication number
EP0437431A1
EP0437431A1 EP19890903098 EP89903098A EP0437431A1 EP 0437431 A1 EP0437431 A1 EP 0437431A1 EP 19890903098 EP19890903098 EP 19890903098 EP 89903098 A EP89903098 A EP 89903098A EP 0437431 A1 EP0437431 A1 EP 0437431A1
Authority
EP
European Patent Office
Prior art keywords
ring
rings
pitch circle
gas
elongated holes
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.)
Ceased
Application number
EP19890903098
Other languages
German (de)
English (en)
Inventor
Dieter Lorenz
Jürgen Haarhuis
Manfred Lieske
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0437431A1 publication Critical patent/EP0437431A1/fr
Ceased legal-status Critical Current

Links

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 a metal-encapsulated, pressurized gas-insulated high-voltage system, the conductors or devices of which are housed in housings in which the conductors extend essentially in the direction of the longitudinal axis of the housing, and in which the housings to be connected are angled have mutually standing longitudinal axes and are connected via a two-part intermediate piece, the housings being connected to the intermediate piece in each case via flanges and fastening means penetrating them.
  • Such a metal-encapsulated high-voltage system can consist of devices and / or pipelines combined in panels of certain field circuits, each of which is housed in a housing filled with compressed gas, in particular with SF ß . It is common for the devices belonging to the panels to be in the housing filled with the compressed gas in the smallest of spaces, e.g. B. in buildings to accommodate, while transformers or overhead lines, which may also belong to the high-voltage system, are usually outdoors and have connections with much greater distances apart. Gas-filled pipelines are usually used to connect them. This results in the necessity that housings must be connected to one another whose longitudinal axes run at an angle to one another. Pipe conductors can also have angles between 0 * to 90 "between the longitudinal axes of their housings or conductors at connection points.
  • the present invention is based on the object of designing a two-piece intermediate piece for connecting an angularly aligned housing of a metal-encapsulated, pressure-gas-insulated high-voltage system in such a way that the intermediate piece is slightly adapted to the angle, easily dismantled at any time and also again to other angles between 0 * and 90 * can be adjusted.
  • a metal-encapsulated, gas-insulated high-voltage system of the type described at the outset is designed in accordance with the invention in such a way that two intermediate rings, which are sealed against one another and against the flanges, serve as an intermediate piece, each on an inner and an outer pitch circle Have threaded or through-bores and each of which is fastened to the flange of the housing by means of the fastening means on the inner pitch circle, that the rings are connected to one another by means of further fastening means on the outer pitch circles of the same diameter, wherein the diameter of the outer part circles is so much larger than the outer diameter of the flanges that the further fastening means lie outside the flanges, that on one of the rings the bores on the outer part circle are formed as elongated holes, the length of which is half the hole pitch ß " d corresponds to this outer pitch circle.
  • connection between the housings of the high-voltage system with longitudinal axes or conductors running at an angle to one another is thus made more easily via the normal flanges of the housings Interposition of two rings abutting one another on the end faces, each of which is connected to the flanges of the housing on the inner pitch circles and to one another on the outer pitch circles.
  • the bores for receiving the further fastening means for connecting the rings to one another are now designed as elongated holes.
  • the length of these elongated holes corresponds to half the hole pitch ß 2 of the elongated holes.
  • the area remaining between the elongated holes thus has the same length as the elongated holes and is thus covered with the elongated holes by displacing the ring.
  • the gas seals can be attached to one of the two _Stixnction the rings in any way. It is also advantageous to choose the hole pitch ß 2 of the elongated holes on the outer pitch circle of one of the rings so that it can be summed up to 180 * . In this case, the gas seals are also only to be arranged on the two end faces of the ring with the elongated holes. You then have the option of folding this ring with the elongated holes around a diameter which in each case forms the axis of symmetry.
  • the elongated holes are each arranged in mirror image to the original position and one can assign this ring with elongated holes to a ring which has only half the number of holes on the outer pitch circle, ie in the the hole division on the outer pitch circle of the hole division ß - corresponds to the elongated holes.
  • the outer diameter of the two rings of the intermediate piece can be of different sizes. Then the larger ring can still be used to attach additional fasteners, e.g. B. for attaching a support.
  • the outer diameters of the flanges can also be different if the inner pitch circles of the associated rings are adapted accordingly.
  • the flanges, to which the two-part intermediate piece is connected can lie either on the end face or on the outer surface of the housing, depending on the plane in which the angle between the longitudinal axes of the housing to be connected lies.
  • a particularly simple design results if the flanges of the housings each have the same number of bores on the inner pitch circle as if they were connected directly to one another. Then both rings have the same inner pitch circle with the same number of holes.
  • the penetration of impurities or moisture through the elongated holes can be prevented in an expedient manner in that the elongated holes on the outer pitch circle of one ring are covered by an additional ring which is provided with bores is provided according to the hole pitch and the diameter of the holes on the outer pitch circle of the other ring of the intermediate piece.
  • FIG. 1 shows, schematically represented, three single-phase encapsulated housings of a switch panel, which are connected via pipes to further apart connections of a system part, not shown.
  • FIG. 2 shows a partially sectioned side view of FIG. 1 on an enlarged scale.
  • FIGS. 3 and 5 each show a longitudinal section through the housing flanges with the intermediate piece, which is shown in two slightly modified versions.
  • FIGS. 4 and 6 show schematically, in each case pulled apart, the partial circles on the flanges and the intermediate piece with the arrangement of the bores or the elongated holes in different variations.
  • the conductors 2 which are housed in three closely spaced housings 1 (see FIG. 1), belong to a field circuit of a switchgear panel of the high-voltage switchgear and each in the direction of the longitudinal axis indicated by dash-dotted lines 3 of the housing 1 run parallel to one another, connected to overhead line connections, not shown, which are at a substantially greater distance from one another.
  • the connection is made in each case via single-phase tubular conductors 4, the conductors 5 located in the center likewise running in the direction of the longitudinal axis 6 of the housing 7, indicated by dash-dotted lines.
  • the conductors 2 are in the housing 1 and -di-e conductors 5 the pipe conductor 4 each at an angle to one another, this angle ⁇ each having a different size.
  • the connection takes place with the aid of a two-part intermediate piece 8, which is attached to the flange 9 of the housing 1 and to the flange 10 of the housing 7 of the pipeline 4 is attached.
  • the flange 9 of the housing 1 is located on a connecting piece 11, which is led out of the housing 1 at right angles onto its jacket surface. Accordingly, the flange 10 closes a nozzle 12 of the housing 7.
  • These connecting pieces 11 and 12, respectively led out at right angles from the housings 1 and 7, are connected to one another by the two-part intermediate piece 8 in such a way that the desired angle c__ between the
  • Both flanges 9, 10 have on a same pitch circle 16 (indicated in Figure 3) lying bores 17, 18 of the same hole pitch ⁇ , 6 . Since these pitch circles 16 each have the same diameter, the bores 17, 18 in the flanges 9, 10 are made as if they were directly connected to one another by the fastening means. However, they are connected via the two-part intermediate piece 8.
  • This two-part intermediate piece 8 consists of two rings 19, 20, of which the ring 19 is connected to the flange 9 and the ring 20 to the flange 10.
  • both rings 19, 20 have bores 22, 23 lying on an inner pitch circle 21 (indicated in FIG. 3) which corresponds to pitch circle 16.
  • FIG. whose diameter and hole pitch ß. corresponds to the diameter of the bores 17, 18 and the hole pitch ß, 6 .
  • the head 25 of the screw 24 lies in a countersink 26 of the bore 23, which starts from the inner end face 27 of the ring 19.
  • the other ring 20 is fastened to the flange 10 by screws 28 which are screwed into the threaded bores 22 and whose head 29 is supported on the outer end face 30 of the flange 10. This arrangement has the advantage that the screws 24 and 28 have the same dimensions.
  • Both rings 19, 20 of the intermediate piece 8 are also connected to one another.
  • bores 32, 33 are provided in both rings 19, 20 on the same outer pitch circle 31 (also indicated), which are penetrated by the bolts 34 serving as further fastening means.
  • the nut 35 of the bolt 34 lies against the outer end face 36 of the ring 19.
  • a further ring 38 is provided, which lies between the end face 37 and the head 39 of the bolt 34.
  • This ring 38 in turn contains holes 40, the diameter and hole pitch of which corresponds to that of the outer holes 33.
  • the ring 38 serves to cover the holes 32 in the ring 20, which are designed as elongated holes 32, so that they are protected against the ingress of contaminants and moisture.
  • the bores 32 of which are formed on the outer pitch circle 31 as elongated holes 32 one chooses a hole pitch ⁇ "which can be summed up to 360 * or 180 * .
  • the length of the elongated holes 32 then corresponds to half the hole pitch ß 2 ' on the other ring 19 of the intermediate piece 8
  • a hole pitch is selected for the holes 33 on the outer pitch circle 31, which corresponds to half the hole pitch ß - the elongated holes 32 of the other ring 20.
  • This choice must of course be made so that the distances between the individual holes 33 are sufficiently small to guarantee gas tightness if only every second hole 33 is covered with the fastening means 34.
  • both between the length of the elongated holes 32 and between the pitches ß _ of the elongated holes and the hole pitch fi g? / ? of the bores 33 on the other ring 19 is a full displaceability of each elongated hole 32 over a range of at least one hole division of the bores 33. This always results in an overlap of a bore 33 with the elongated hole 32 in this area (see FIG. 4).
  • This hole pitch ß. choose completely freely on the inner pitch circles 21 of the rings 19, 20, only the gas tightness having to be taken into account.
  • This hole division ß. the holes 23 and 22 then corresponds to the hole pitches ß,, on the pitch circles 16 of the flanges 9 and * .1O _ with those one of the rings 19, 20 is connected.
  • the ring 19 is first attached to the flange 9 with the screws 24.
  • the ring 20 which is fastened to the flange 10 with the screws 28. If the rings 19, 20 are brought into contact with one another, it can be seen that at least one bore 33 is aligned with the elongated hole 32 on the outer part circles 31 of the rings 19, 20, so that despite the present angle o between the Longitudinal axes 3, 6 of the housing 1, 7, the two rings 19, 20 can be connected to one another without difficulty using the bolts 34.
  • FIGS. 5 and 6 A further modified exemplary embodiment is shown in FIGS. 5 and 6, the same reference numerals being retained for the same parts.
  • the intermediate piece 8 shown in FIG. 5 essentially corresponds to that shown in FIG. 3, only the sealing conditions are modified.
  • sealing rings 44 are located only in ring 46, which has elongated holes 32.
  • the ring 45 with the bores 23, 3? on the other hand has no sealing rings.
  • the ring 46 Since identical sealing surface conditions are thus created on the two machined outer surfaces of the ring 46, namely the outer end face 47 and the inner end face 48, the ring can be turned over, ie folded over a diameter 43, without this turning through 180 * change the sealing ratio.
  • the hole pitch ⁇ of the elongated holes can accordingly be summed up to 180 * .
  • the hole pitch on the outer pitch circle 31 of the ring 45 corresponds to the hole pitch ⁇ «of the other ring 46.

Landscapes

  • Gasket Seals (AREA)
  • Installation Of Bus-Bars (AREA)

Abstract

Les cuirasses (1, 7) des installations haute tension à cuirasse métallique et à isolation par gaz comprimé doivent souvent être reliées par une pièce intermédiaire (8) dont les axes longitudinaux forment un angle. L'élément intermédiaire (8) consiste en deux anneaux (19, 20) dont les parties frontales sont accolées et qui comportent des alésages (22, 32, 23, 33) sur leurs cercles gradués interne (21) et externe (31), respectivement, et qui sont reliés à la fois, par leur cercle gradué interne (21), avec la bride (9, 10) de l'une des cuirasses (1, 7) et, par leur cercle gradué externe (31), l'un à l'autre. Sur l'un des anneaux (20), les alésages (32) du cercle gradué externe (31) ont la forme d'orifices allongés (32) dont la longueur correspond à la moitié de l'espace betaa2 entre les orifices. L'espace entre les orifices du cercle gradué externe (31) de l'autre anneau (19) est alors la moitié de betaa2 ou est égal à betaa2 lorsque les éléments d'étanchéification par gaz ne se trouvent que sur l'anneau (20) avec les orifices allongés (32). La pièce intermédiaire (8) permet de régler tous les angles U entre les axes longitudinaux.
EP19890903098 1988-11-22 1989-03-10 Installation haute tension a cuirasse metallique et a isolation par gaz comprime Ceased EP0437431A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3839737 1988-11-22
DE19883839737 DE3839737A1 (de) 1988-11-22 1988-11-22 Metallgekapselte, druckgasisolierte hochspannungsanlage

Publications (1)

Publication Number Publication Date
EP0437431A1 true EP0437431A1 (fr) 1991-07-24

Family

ID=6367831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890903098 Ceased EP0437431A1 (fr) 1988-11-22 1989-03-10 Installation haute tension a cuirasse metallique et a isolation par gaz comprime

Country Status (5)

Country Link
EP (1) EP0437431A1 (fr)
JP (1) JPH04502699A (fr)
CA (1) CA2003331A1 (fr)
DE (1) DE3839737A1 (fr)
WO (1) WO1990006009A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888038A (en) * 1996-12-02 1999-03-30 American Seating Company Tie-down for wheelchairs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112417U1 (fr) * 1991-09-30 1993-02-04 Siemens Ag, 8000 Muenchen, De
DE102007006727A1 (de) * 2007-02-06 2008-08-07 Siemens Ag Kapselungsabschnitt einer gasisolierten Hochspannungsanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870959A (en) * 1925-04-13 1932-08-09 Westinghouse X Ray Co Inc X-ray apparatus
CH548679A (de) * 1972-08-16 1974-04-30 Bbc Brown Boveri & Cie Abgewinkelte verbindungsanordnung fuer eine druckgasisolierte metallgekapselte elektrische hochspannungsleitung und verfahren zur herstellung der verbindungsordnung.
CH558092A (de) * 1973-11-05 1975-01-15 Sprecher & Schuh Ag Wander-schaltblock fuer metallgekapselte hochspannungsschaltanlagen.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9006009A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5888038A (en) * 1996-12-02 1999-03-30 American Seating Company Tie-down for wheelchairs

Also Published As

Publication number Publication date
DE3839737A1 (de) 1990-05-31
JPH04502699A (ja) 1992-05-14
WO1990006009A1 (fr) 1990-05-31
CA2003331A1 (fr) 1990-05-22

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