EP0703593A2 - Colonne polaire pour un disjoncteur électrique - Google Patents

Colonne polaire pour un disjoncteur électrique Download PDF

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Publication number
EP0703593A2
EP0703593A2 EP95250213A EP95250213A EP0703593A2 EP 0703593 A2 EP0703593 A2 EP 0703593A2 EP 95250213 A EP95250213 A EP 95250213A EP 95250213 A EP95250213 A EP 95250213A EP 0703593 A2 EP0703593 A2 EP 0703593A2
Authority
EP
European Patent Office
Prior art keywords
insulating material
material housing
housing
pole column
opening
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.)
Granted
Application number
EP95250213A
Other languages
German (de)
English (en)
Other versions
EP0703593B1 (fr
EP0703593A3 (fr
Inventor
Manfred Meinherz
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0703593A2 publication Critical patent/EP0703593A2/fr
Publication of EP0703593A3 publication Critical patent/EP0703593A3/fr
Application granted granted Critical
Publication of EP0703593B1 publication Critical patent/EP0703593B1/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
    • 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
    • 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
    • H01H33/025—Terminal arrangements

Definitions

  • the invention relates to a pole column of an electrical circuit breaker with an insulating material housing, with an interrupter unit arranged in a first part of the insulating material housing, an insulating switching rod arranged in a second part of the insulating material housing for actuating the interrupter unit and a first and second electrical connection, the first electrical connection is arranged on the jacket side at the end of the second part facing the first part of the insulating material housing.
  • Such a pole column is known, for example, from the Siemens brochure "SF6 3AS1 circuit breaker 123-145-170 KV, 31.5 ... 40 kA".
  • the mutually adjacent ends of the first and the second part of the insulating material housing are provided with metallic flanges which are screwed together to produce a connection between the two parts.
  • One of the contact pieces of the interrupter unit is attached to the metallic flange assigned to the upper part of the insulating material housing.
  • the current flowing through the interrupter unit is conducted to the outside of the insulating material housing by means of the metallic flange.
  • the gas tightness of the electrical connections is ensured by metal flanges attached to the insulating housing parts.
  • the insulating housing is assembled from several parts on site.
  • the present invention has for its object to provide a pole column of the type mentioned, which is inexpensive, easy to assemble and reliable gas-tight.
  • the object is achieved in that the first part and the second part of the insulating material housing are integrally connected in the longitudinal direction of the pole column and that a jacket-side opening is provided in the insulating material housing for carrying out the first connection, against which at least the first part of the insulating material housing by means of at least one Bushing element is sealed gas-tight.
  • the insulating material housing is made in one piece, the constructive effort for the metal flanges between the two parts of the insulating material housing and the labor for the assembly of these metal flanges are eliminated in the production. In addition, the effort for seals is eliminated in the connection between the insulating material housing and the metal flanges. The assembly of the two parts of the insulating material housing is also no longer necessary.
  • At least one bushing element is necessary, which can be made of plastic or porcelain, for example, and which can be adapted to the shape of the cross section to be sealed.
  • a conductor is passed in a gastight manner, which is connected to the interrupter unit in the interior of the insulating material housing and represents an electrical connection on the outside of the insulating material housing.
  • the conductor can, for example, be glued or cast into the bushing element.
  • the lead-through element by means of an elastomeric seal, in particular is sealed in the form of a rubber ring on the insulating material housing.
  • the bushing element can have, for example, a groove into which a rubber ring, for example an O-ring, can be inserted.
  • the bushing element is glued gas-tight in the insulating material housing.
  • a further advantageous embodiment of the invention provides that a bulkhead insulator is provided as lead-through elements in the axial direction of the insulating material housing on both sides of the opening.
  • the respective bulkhead insulator then has the cross-sectional shape of the interior of the insulating material housing, for example the shape of a circular disk in the case of a hollow cylindrical insulating material housing.
  • the lead-through element has a sealing surface that surrounds the edge of the opening and is adapted to the inner wall of the insulating material housing, in particular a partially cylindrical sealing surface.
  • the bushing element has, for example, the shape of a cylindrical or partially cylindrical body in the case of a hollow cylindrical shape of the insulating material housing, the cylindrical outer surface of which abuts approximately on the inner surface of the insulating material housing.
  • a groove is provided which receives a closed sealing ring which, in the assembled state, surrounds the opening.
  • the bushing element can also have the shape of a hollow cylinder which is penetrated by the shift rod.
  • a further advantageous embodiment of the invention provides that the bushing element is designed as a hollow cylinder and has a piston seal in the axial direction on both sides of the opening, which rests gas-tight on the inner wall of the insulating material housing.
  • FIG. 1 the overall structure of a pole column with a breaker unit 19 and a drive rod 20 is shown schematically.
  • the insulating material housing 1, 2 rests on a base housing 21, in which a drivable crank 22 is mounted in a stationary manner, which transmits a pulling or pushing movement to the drive rod 20.
  • the insulating material housing 1, 2 of the pole column is connected gas-tight to the base housing 21 and sealed gas-tight by means of seals 23.
  • the insulating material housing is also sealed gas-tight by a cover plate 24 by means of seals.
  • the cover plate 24 carries a second electrical connection 25 which is connected to the interrupter unit 19 by means of the cover plate 24.
  • the interrupter unit 19 consists, in a manner known per se, of a double nozzle switch with two contact pieces 27, 28 opposite one another at a fixed distance, and a bridging contact piece 26, which conductively bridges the contact pieces 27, 28 in the switched-on state.
  • a piston-cylinder arrangement with a compression cylinder 29 and a fixed compression piston 30 is provided to provide compressed extinguishing gas.
  • the upper end of the shift rod 20 is connected to the bridging contact piece 26 and the compression cylinder 29 and drives them during the switching process.
  • the contact 28 facing the switching rod 20 is fastened to a metal plate 31, which in turn is fastened to the bushing element 14.
  • the electrical contact from the first connection 18 to the contact piece 28 is also established via this plate 31.
  • a single lead-through element 14 is provided in the form of a pipe section or hollow cylinder. This has a cylindrical outer surface, the diameter of which corresponds to the inner diameter of the hollow cylindrical one Isolierstoffgeophuses 1, 2 is adapted.
  • the lead-through element 14 must be somewhat smaller than the interior of the insulating material housing 1, 2 so that it can be inserted into it.
  • the lead-through element 14 has an annular groove 15, into which an annular rubber seal 16 is inserted.
  • the seal 16 surrounds the opening 4 in the insulating material housing 1, 2 and lies on the edge of the opening 4 in a gas-tight manner. In this way, the lead-through element 14 closes the opening in a gastight manner.
  • the bushing element 14 can be made of metal, for example, so that an electrical conductor 17 can be connected on the inside of the bushing element 14 and connected to the interrupter unit (not shown). On the outside, the bushing element 14 is connected to the first electrical connection 18 by means of a screw connection.
  • the lead-through element 14 has threaded bores 19.
  • the switch rod 20 does not have to pass through gas-tight bushings and, for example, can transmit the drive energy to the interrupter unit by means of an axial pushing or pulling movement.
  • FIG. 4 shows a lead-through element 32 which is similar to that shown in FIG. 2. Similar parts are provided with the same reference symbols in both figures.
  • the bushing element 32 is sealed gas-tight on the cylindrical inner wall of the insulating material housing 1, 2 on both sides of the opening 4, seen in the axial direction of the insulating material housing 1, 2, by means of two rubber seals 33, 34 running around its circumference.
  • the rubber seals are received in grooves in the lead-through element 32. Machining such circumferential grooves is easier than with one Groove on a cylindrical surface, such as shown in Figure 2.
  • FIG. 5 shows the first part 1 above and the second part 2 below of an insulating material housing.
  • a first electrical connection 3 is arranged between the first part 1 and the second part 2 and passes through an opening 4 of the insulating material housing 1, 2.
  • two bushing elements 5, 6 are provided, which consist for example of cast resin and are sealed by means of rubber sealing rings 7, 8 on the inner wall of the insulating housing 1, 2.
  • the lead-through element 5 is penetrated by an electrical conductor 9 which is connected on the one hand to the first electrical connection 3 and on the other hand to an interrupter unit which is not shown in FIG. 1 and is arranged in the first part 1 of the insulating material housing.
  • the conductor 9 is conductively connected to the electrical connection 3, for example by means of a screw connection.
  • the bushing elements 5, 6 are penetrated by a switching rod 10 made of insulating material, which transmits the drive movement from the second part 2 of the insulating material housing to the interrupter unit within the first part 1 of the insulating material housing. This can be done, for example, by rotating the shift rod about its longitudinal axis.
  • the shift rod 10 is sealed within the bushing elements 5, 6 by means of seals 11, 12.
  • the insulating material housing can be made of porcelain, for example, but it is also possible to design it as a plastic tube, in particular as a fiber-reinforced plastic tube with a silicone rubber coating, wherein the shielding ribs 13 can be integrated in the silicone rubber coating.

Landscapes

  • Insulators (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Breakers (AREA)
EP95250213A 1994-09-20 1995-08-29 Colonne polaire pour un disjoncteur électrique Expired - Lifetime EP0703593B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4435359A DE4435359C2 (de) 1994-09-20 1994-09-20 Polsäule eines elektrischen Leistungsschalters
DE4435359 1994-09-20

Publications (3)

Publication Number Publication Date
EP0703593A2 true EP0703593A2 (fr) 1996-03-27
EP0703593A3 EP0703593A3 (fr) 1998-03-04
EP0703593B1 EP0703593B1 (fr) 2001-02-28

Family

ID=6529872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95250213A Expired - Lifetime EP0703593B1 (fr) 1994-09-20 1995-08-29 Colonne polaire pour un disjoncteur électrique

Country Status (2)

Country Link
EP (1) EP0703593B1 (fr)
DE (2) DE4435359C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020104122A1 (fr) * 2018-11-20 2020-05-28 Siemens Aktiengesellschaft Dispositif d'isolation et transformateur de mesure équipé d'un dispositif d'isolation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601053C1 (de) * 1996-01-05 1997-03-13 Siemens Ag Freiluft-Hochspannungs-Leistungsschalter
DE19715314C1 (de) * 1997-04-07 1998-10-29 Siemens Ag Hochspannungs-Leistungsschalter mit einer Kontakteinrichtung
DE19715313C1 (de) * 1997-04-07 1998-09-03 Siemens Ag Hochspannungs-Leistungsschalter mit einer Kontakteinrichtung und mit einem Isolierkörper

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484665A (fr) * 1947-11-18
DE3843943A1 (de) * 1988-12-24 1990-06-28 Asea Brown Boveri Stromrichtergehaeuse und verfahren zur herstellung von durchfuehrungsanordnungen an diesem gehaeuse
WO1992009997A1 (fr) * 1990-11-21 1992-06-11 Elin Energieversorgung Gesellschaft M. B. H. Pole d'interrupteur a vide
DE9017054U1 (de) * 1990-12-18 1991-03-07 ABB Patent GmbH, 6800 Mannheim Schalterpolanordnung
WO1992011651A1 (fr) * 1990-12-21 1992-07-09 Elin Energieversorgung Gesellschaft M.B.H. Pole d'interrupteur a vide
DE4108677A1 (de) * 1991-03-16 1992-09-17 Reiss Int Gmbh Abgedichteter kabelanschluss
DE4201823A1 (de) * 1992-01-21 1993-07-22 Siemens Ag Lastschalteinheit mit einer schaltkammer, einer antriebsvorrichtung und einem die schaltkammer aufnehmenden gasdichten behaelter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020104122A1 (fr) * 2018-11-20 2020-05-28 Siemens Aktiengesellschaft Dispositif d'isolation et transformateur de mesure équipé d'un dispositif d'isolation

Also Published As

Publication number Publication date
EP0703593B1 (fr) 2001-02-28
DE4435359C2 (de) 1998-07-30
DE59509054D1 (de) 2001-04-05
DE4435359A1 (de) 1996-03-21
EP0703593A3 (fr) 1998-03-04

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