EP1032003B1 - Dispositif d'étanchéité d'un réservoir d'huile cylindrique pour un commutateur - Google Patents

Dispositif d'étanchéité d'un réservoir d'huile cylindrique pour un commutateur Download PDF

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Publication number
EP1032003B1
EP1032003B1 EP00103220A EP00103220A EP1032003B1 EP 1032003 B1 EP1032003 B1 EP 1032003B1 EP 00103220 A EP00103220 A EP 00103220A EP 00103220 A EP00103220 A EP 00103220A EP 1032003 B1 EP1032003 B1 EP 1032003B1
Authority
EP
European Patent Office
Prior art keywords
switch
screw
outer groove
face
insulating cylinder
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.)
Expired - Lifetime
Application number
EP00103220A
Other languages
German (de)
English (en)
Other versions
EP1032003A3 (fr
EP1032003A2 (fr
Inventor
Thomas Dipl.-Ing. Dr. Strof
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.)
Maschinenfabrik Reinhausen GmbH
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
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 Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Priority to AT00103220T priority Critical patent/ATE327563T1/de
Publication of EP1032003A2 publication Critical patent/EP1032003A2/fr
Publication of EP1032003A3 publication Critical patent/EP1032003A3/fr
Application granted granted Critical
Publication of EP1032003B1 publication Critical patent/EP1032003B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0044—Casings; Mountings; Disposition in transformer housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0044—Casings; Mountings; Disposition in transformer housing
    • H01H2009/005—Details concerning the sealing of the oil filled casings

Definitions

  • the invention relates to an arrangement for sealing a cylindrical oil vessel of a switch, preferably a Last Helmlers, diverter switch for tap changer or the like., Which is provided in the boiler, especially in the oil boiler, a transformer and the oil vessel consists of an insulating tube, the two end faces each one Metal flange of a cover or bottom part are associated with a seal, wherein the metal flange is connected via releasable clamping elements which engage in an outer groove of the insulating tube with the insulating tube.
  • Such a sealing arrangement is known from AT-PS 341 624.
  • the outer groove provided in the insulating tube has a rectangular cross section into which a ring projection of a metal ring engages.
  • This metal ring is pulled over clamping screws, which ends in a vertical threaded bore of the metal flange, in the direction of the end face of the insulating tube.
  • the sealing rings between the end face of the insulating cylinder and the metal flange are pressed together.
  • an oversized thickness of the insulating tube must be selected due to the rectangular cross-section of the outer groove.
  • the rectangular cross-section causes in the edges of a notch effect which can lead to damage and which must be compensated with material strength quasi.
  • the object of the invention is therefore to provide an arrangement of the type cited above, on the one hand avoids the above-mentioned disadvantages and on the other hand allows a rational production of such a switch.
  • the arrangement according to the invention is characterized in that the outer groove of the insulating tube in cross section is formed semicircular, that in this semicircular outer groove a round cross-section clamping ring is arranged and that in the metal flange at least one extending at an acute angle to the end face of the insulating threaded bore is provided with a screw, wherein the end face of the screw acts on the clamping ring.
  • the threaded holes or screws are arranged distributed uniformly on the circumference of the metal flange.
  • a plurality of circumferentially distributed holes or screws are provided.
  • the semicircular outer groove in the direction away from its corresponding end face of the insulating tube from the zenith to the outer circumference running, in particular obliquely running executed.
  • this design provides a good attack surface of the end face of the screw on the clamping ring, since the angle can be chosen relatively acute.
  • the clamping ring consists of two parts, in particular of two mutually connectable half rings. This construction also contributes to simpler and thus faster assembly. In addition, manufacturing tolerances can be compensated easier.
  • the screw is a cylinder screw with a hexagon socket.
  • Such machine elements have proven themselves in practice and do not require an increase in the storage of replacement or assembly parts.
  • a load selector With a load selector, the selector shaft is driven with all movable contacts via a gear below the switch head.
  • a load selector combines the functions of a diverter switch and a selector. The advantages of a load selector are that it can be used universally as a star point switch, single-pole switch or as a triangular switch. It has a simple mechanism, wherein all switching contacts can be made of tungsten-sintered material. By this choice of material, a long contact life is achieved.
  • a load selector may also have separate persistent current contacts. In addition, or the drive shaft and the flange connections are arbitrarily adjustable.
  • the load selector changes the stages directly during the dialing process. As soon as the motor drive starts, the gearbox in the switch head begins to pull up the spring accumulator. After complete mounting, the lock of the spring accumulator is released and this actuates the movable contact system of the load selector in quick change from the selected to the preselected stage.
  • the switching time is approx. 40 to 60 ms.
  • This oil vessel consists of an insulating tube 1, wherein on the end face of a metal flange 2 of a cover part is arranged.
  • the sealing takes place via a sealing ring 3 which is provided between the end face of the insulating cylinder 1 and the metal flange 2.
  • This sealing ring 3 is arranged for example in a specially dimensioned for him annular groove 4 of the metal flange 2.
  • the insulating tube 1 has an outer groove 5, in which a clamping ring 6 is arranged. Furthermore, a threaded hole 7 with a screw 8 is provided in the metal flange 2 at an acute angle to the end face of the insulating tube 1. The end face of the screw 8 acts on the clamping ring. 6
  • the clamping ring 6 may consist of two parts, in particular of two mutually connectable half rings.
  • the screw 8 may be a cylinder screw with a hexagon socket.
  • the outer groove 5 is designed running obliquely in the direction away from its corresponding end face. This bevel 9 also serves to facilitate assembly of the clamping ring. 6
  • the sealing of the metal flange 2, which is used as the bottom part, is shown.
  • the metal flange 2 again has the annular groove 4 for the sealing ring 3, which is arranged on the end face of the insulating tube 1.
  • the metal flange 2 has a threaded hole 7 running at an acute angle to the end face of the insulating tube 1 with a screw 8.
  • the outer groove 5 of the clamping ring 6 is provided, on which the end face of the screw 8 acts.
  • the bottom part may have vertical holes 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Manufacture Of Switches (AREA)
  • Insulators (AREA)
  • Level Indicators Using A Float (AREA)
  • Push-Button Switches (AREA)
  • Housings And Mounting Of Transformers (AREA)

Claims (5)

  1. Dispositif de scellement d'un récipient d'huile cylindrique d'un commutateur, de préférence d'un sélecteur en charge, d'un commutateur pour changeurs de prises ou similaires, qui est prévu dans une cuve, notamment dans une cuve à huile, d'un transformateur de puissance et dont le récipient d'huile se compose d'un tube isolant dont les deux faces frontales sont chacune associées à une bride métallique d'une partie de couvercle ou de fond avec un étanchement, la bride métallique étant reliée au tube isolant par l'intermédiaire d'éléments de serrage détachables qui viennent en prise dans une rainure externe du tube isolant, caractérisé en ce que la rainure externe (5) du tube isolant (1) est réalisée en section transversale en forme de demi-cercle, qu'un anneau tendeur (6) rond en section transversale est disposé dans cette rainure externe en forme de demi-cercle (5) et qu'au moins un alésage fileté (7) s'étendant à angle aigu vers la face frontale du tube isolant (1) est prévu avec une vis (8), la face frontale de la vis (8) agissant sur l'anneau tendeur (6).
  2. Dispositif selon la revendication 1, caractérisé en ce que les alésages filetés (7) ou vis (8) sont disposés uniformément à la périphérie de la bride métallique.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la rainure externe en forme de demi-cercle (5) est réalisée dans la direction détournée de sa face frontale correspondante du tube isolant (1) s'étendant du zénith vers la périphérie externe, notamment en biais.
  4. Dispositif selon au moins l'une quelconque des revendications 1 à 3, caractérisé en ce que l'anneau tendeur (6) se compose de deux parties, notamment de deux demi-anneaux pouvant être reliés ensemble.
  5. Dispositif selon au moins l'une quelconque des revendications 1 à 4, caractérisé en ce que la vis (8) est une vis cylindrique à six pans creux.
EP00103220A 1999-02-24 2000-02-17 Dispositif d'étanchéité d'un réservoir d'huile cylindrique pour un commutateur Expired - Lifetime EP1032003B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT00103220T ATE327563T1 (de) 1999-02-24 2000-02-17 Anordnung zur abdichtung eines zylindrischen olgefässes eines schalters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0031499A AT409563B (de) 1999-02-24 1999-02-24 Anordnung zur abdichtung eines zylindrischen ölgefässes eines schalters
AT31499 1999-02-24

Publications (3)

Publication Number Publication Date
EP1032003A2 EP1032003A2 (fr) 2000-08-30
EP1032003A3 EP1032003A3 (fr) 2001-05-02
EP1032003B1 true EP1032003B1 (fr) 2006-05-24

Family

ID=3487291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103220A Expired - Lifetime EP1032003B1 (fr) 1999-02-24 2000-02-17 Dispositif d'étanchéité d'un réservoir d'huile cylindrique pour un commutateur

Country Status (3)

Country Link
EP (1) EP1032003B1 (fr)
AT (2) AT409563B (fr)
DE (1) DE50012796D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103490A1 (de) * 2012-04-20 2013-10-24 Maschinenfabrik Reinhausen Gmbh Verteiltransformator zur Spannungsregelung von Ortsnetzen
DE102012103489A1 (de) * 2012-04-20 2013-10-24 Maschinenfabrik Reinhausen Gmbh Laststufenschalter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002171624A (ja) 2000-11-30 2002-06-14 Mitsubishi Electric Corp ガス封入形開閉装置
EP3761332B8 (fr) * 2019-07-01 2023-12-06 Hitachi Energy Ltd Changeur de prise en charge comprenant une barrière d'isolation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584834A (en) * 1945-01-29 1947-01-23 Crabtree & Co Ltd J A Improvements in and connected with electric switches having oil-immersed contacts
AT341624B (de) * 1975-09-29 1978-02-27 Elin Union Ag Abdichtungsanordnung fur ein zylindrisches olgefass eines lastumschalters fur stufenschalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103490A1 (de) * 2012-04-20 2013-10-24 Maschinenfabrik Reinhausen Gmbh Verteiltransformator zur Spannungsregelung von Ortsnetzen
DE102012103489A1 (de) * 2012-04-20 2013-10-24 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102012103490B4 (de) * 2012-04-20 2015-11-12 Maschinenfabrik Reinhausen Gmbh Verteiltransformator zur Spannungsregelung von Ortsnetzen
DE102012103489B4 (de) * 2012-04-20 2015-11-12 Maschinenfabrik Reinhausen Gmbh Laststufenschalter und dessen Verwendung zur Spannungsregelung in einem Verteiltransformator

Also Published As

Publication number Publication date
EP1032003A3 (fr) 2001-05-02
ATA31499A (de) 2002-01-15
ATE327563T1 (de) 2006-06-15
AT409563B (de) 2002-09-25
EP1032003A2 (fr) 2000-08-30
DE50012796D1 (de) 2006-06-29

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