EP0288417B1 - Appareil électrique de coupure haute tension - Google Patents

Appareil électrique de coupure haute tension Download PDF

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Publication number
EP0288417B1
EP0288417B1 EP88730066A EP88730066A EP0288417B1 EP 0288417 B1 EP0288417 B1 EP 0288417B1 EP 88730066 A EP88730066 A EP 88730066A EP 88730066 A EP88730066 A EP 88730066A EP 0288417 B1 EP0288417 B1 EP 0288417B1
Authority
EP
European Patent Office
Prior art keywords
bolt
housing
cheeks
lever
voltage power
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
EP88730066A
Other languages
German (de)
English (en)
Other versions
EP0288417A1 (fr
Inventor
Dieter Noack
Thomas Schultz
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
Priority to AT88730066T priority Critical patent/ATE72611T1/de
Publication of EP0288417A1 publication Critical patent/EP0288417A1/fr
Application granted granted Critical
Publication of EP0288417B1 publication Critical patent/EP0288417B1/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
    • H01H33/42—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle

Definitions

  • the invention relates to an electrical high-voltage circuit breaker, the interrupter units and a housing for intermediate gears are carried by a support column made of insulators, in which a drive arranged on the ground side, the movable switch contacts of each interrupter unit via a switch rod arranged in the support column made of insulating material and that of several Lever existing intermediate gear operated, one of the levers is mounted on a pin in the housing of the intermediate gear.
  • Such a high voltage circuit breaker is e.g. B. from US-PS 4 105 879 known.
  • the bolt for mounting the one lever of the intermediate gear serves as a fulcrum for it.
  • the lever mounted on the bolt must be precisely aligned in its position and must not deviate in the axial direction under the action of force, since the movable switching contacts located in the interrupter units must not tilt under any circumstances.
  • Such a precise alignment of the lever is only possible over machined surfaces, the production of which is very complex in a cast housing, depending on its position.
  • the invention is therefore based on the object to design the design of the bearing of the lever of the intermediate gear so that as few machining steps are required for this precise lateral fixing of the lever.
  • the storage of a lever of the intermediate gear is designed via a bolt in its housing according to the invention in an electrical high-voltage circuit breaker of the type described above so that Inside the cast housing, two parallel cheeks are provided for each intermediate gearbox, which are located behind an opening in the housing that is sealed gas-tight with a lid, the lid also being parallel to the cheeks and the lid and cheeks at least approximately perpendicular to the longitudinal axis of the bolt , that aligned holes of the same diameter are provided in the cheeks, which receive the bolt, that the bolt is divided into two areas with different diameters, of which the lid facing the larger diameter, corresponding to the diameter of the holes in the cheeks, and the other a smaller diameter corresponding to the inner diameter of one in the rear cheek with lying in front of the cheek End face arranged sleeve, the length of this other area is selected so that the paragraph is between the different diameters behind the front cheek, that this shoulder and the end face of the sleeve form contact surfaces for the lever of the intermediate gear
  • the bearing of the lever of the intermediate gearbox is thus carried out via a bolt which is inserted through an opening into the cast housing of the intermediate gearbox and is in turn mounted in two parallel cheeks which are substantially perpendicular to its longitudinal axis.
  • these cheeks have aligned bores of the same diameter, which corresponds to the larger diameter of the bolt in its area facing the opening or the cover closing it.
  • the latter has a region of smaller diameter beginning between the cheeks, the length of which is selected such that the shoulder between the two diameter regions of the bolt always comes to lie behind the front cheek.
  • the inside diameter of which is smaller Corresponds to the bolt diameter and the end face lies in front of the rear cheek.
  • the distance between the two cheeks of the housing is greater than the thickness of the lever mounted on the bolt and that this lever carries two collar bushings on the bore for receiving the bolt, one of which with its end face on the shoulder of the bolt and the the other rests with its end face on the projecting end face of the sleeve in the rear cheek.
  • the flanged bushes are advantageously made of abrasion-free plastic, which has low adhesion and therefore slides well, as it is e.g. B. is available under the trade name Teflon®.
  • FIGS. 1 and 2 of the drawing show schematically a partially sectioned view of the housing of the intermediate gear of an electrical high-voltage circuit breaker.
  • FIG. 2 shows a longitudinal section through the bearing pin of an intermediate gear and the housing parts surrounding it.
  • the housing 1 for the intermediate gear is only indicated by the one Support column 2 worn.
  • the intermediate gear consists of several interconnected levers, of which one lever 4 is mounted in the housing 1 via the bolt 5.
  • the housing 1 contains an opening which is closed gas-tight with a cover 7.
  • the cover 7 carries a seal 8.
  • two housing cheeks 9, 10 are cast in the cast housing 1 behind the opening 6, which are parallel to one another and to the cover 7 and are approximately perpendicular to the longitudinal axis of the bolt 5.
  • Aligned bores 11, 12 are provided in the cheeks 9, 10 and have the same diameter 13 indicated by arrows as the bearing pin 5 in its area 14 facing the cover 7, which is also indicated by arrows.
  • the bore 12 in the rear housing cheek 10 does not penetrate it completely and therefore forms a blind hole.
  • a sleeve 15 is inserted, which rests on one side against the rear wall 16 of the blind hole and whose end wall 17 lies in front of the front side wall 18 of the housing cheek 10.
  • a second region of smaller diameter, indicated by arrows 19, is provided on the bolt 5, the diameter of which corresponds to the inner diameter of the sleeve 15.
  • the shoulder 20 is thus formed on the bolt 5 between the region 14 of larger diameter and the region 19 of smaller diameter.
  • This shoulder 20 lies behind the rear side wall 21 of the front housing cheek 9.
  • Both the shoulder 20 and the end wall 17 of the sleeve 15 form precisely defined contact surfaces for the lateral fixing of the lever 4 of the intermediate gear, without the side walls 21 or 18 of the housing cheeks 9, 10 having to be processed for this.
  • This arrangement of the mounting of the lever 4 of the intermediate gear designed according to the invention enables precise lateral alignment of the lever 4 and prevents the bolt 5 from migrating in its axial direction.
  • the storage only requires the production of aligned bores in the housing cheeks 9, 10.
  • the cover 7 ensures the gas-tight closure of the opening 6 in the housing 1 and at the same time fixes the bolt 5 in its position.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Discharge Lamp (AREA)
  • Organic Insulating Materials (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (4)

1. Interrupteur de puissance électrique à haute tension, dont les unités formant interrupteurs (3) et un boîtier (1) servant à loger des mécanismes intermédiaires sont supportés par une colonne (2) d'isolateurs de support, et dans lequel un dispositif d'entraînement installé côté terre actionne les contacts mobiles de coupure de chaque unité formant interrupteur par l'intermédiaire d'une barre de commutation réalisée en matériau isolant et disposée dans la colonne (2) d'isolateurs de support et actionne le mécanisme intermédiaire constitué par plusieurs leviers, l'un des leviers (4) étant supporté par un goujon (5) dans le boîtier (1) du mécanisme intermédiaire,
caractérisé par le fait
qu'à l'intérieur du boîtier moulé (1) il est prévu, pour chaque mécanisme intermédiaire, deux flasques parallèles (9,10), qui sont situés derrière une ouverture (6) fermée de façon étanche aux gaz par un couvercle (7), dans le boîtier (1), le couvercle (7) étant également parallèle aux flasques (9,10), et le couvercle (7) et les flasques (9,10) étant au moins approximativement perpendiculaires à l'axe longitudinal du goujon (5),
qu'il est prévu, dans les flasques (9,10), des perçages alignés (11,12) possédant un même diamètre (13) et recevant le goujon (5),
que le goujon (5) est subdivisé en deux parties (14,19) possédant des diamètres différents et dont celle, qui est tournée vers le couvercle (7), possède le diamètre maximum (13), qui correspond au diamètre des perçages (11,12) ménagés dans les flasques (9,10), et dont l'autre possède un diamètre plus petit qui correspond au diamètre intérieur d'une douille (15) disposée dans le flasque arrière (10) possédant une surface frontale (17) située devant le flasque (10), la longueur de cette autre partie (19) étant choisie de manière que l'épaulement (20) situé entre les contours qui ont des diamètres différents est situé en arrière du flasque avant (9),
que cet épaulement (20) et la surface frontale (17) de la douille (15) forment des surfaces d'application pour le levier (4), supporté par le goujon (5), du mécanisme intermédiaire, et
que le couvercle (7) fixe le goujon (5) dans la direction axiale.
2. Interrupteur de puissance électrique à haute tension suivant la revendication 1, caractérisé par le fait que la distance entre les deux flasques (9,10) du boîtier (1) est supérieure à l'épaisseur du levier (4) porté par le goujon (5) et que ce levier (4) porte, au niveau du perçage (22) servant à loger le goujon (5), deux douilles à collet (23,24), dont les faces frontales s'appliquent contre l'épaulement (20) du goujon (5) et contre l'autre surface frontale (17) de la douille (14) dans le flasque arrière (10).
3. Interrupteur de puissance électrique à haute tension suivant la revendication 2, caractérisé par le fait que les douilles à collet (23,24) sont réalisées en une matière plastique possédant une bonne propriété de glissement et présentant une faible adhérence et une faible usure par frottement.
4. Interrupteur de puissance électrique à haute tension suivant la revendication 1 ou 2, caractérisé par le fait que le perçage (12) ménagé dans le flasque arrière (10) est réalisé sous la forme d'un trou borgne et que la douille (15) s'applique contre la paroi arrière (16) du perçage (12).
EP88730066A 1987-03-31 1988-03-17 Appareil électrique de coupure haute tension Expired - Lifetime EP0288417B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730066T ATE72611T1 (de) 1987-03-31 1988-03-17 Elektrischer hochspannungs-leistungsschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8704769U 1987-03-31
DE8704769U DE8704769U1 (de) 1987-03-31 1987-03-31 Elektrischer Hochspannungs-Leistungsschalter

Publications (2)

Publication Number Publication Date
EP0288417A1 EP0288417A1 (fr) 1988-10-26
EP0288417B1 true EP0288417B1 (fr) 1992-02-12

Family

ID=6806532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730066A Expired - Lifetime EP0288417B1 (fr) 1987-03-31 1988-03-17 Appareil électrique de coupure haute tension

Country Status (4)

Country Link
EP (1) EP0288417B1 (fr)
JP (1) JP2563096B2 (fr)
AT (1) ATE72611T1 (fr)
DE (2) DE8704769U1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1080354A (en) * 1964-05-27 1967-08-23 English Electric Co Ltd Improvements in or relating to electric switchgear
JPS52110473A (en) * 1976-03-12 1977-09-16 Hitachi Ltd Electromagnetic buffer gas breaker

Also Published As

Publication number Publication date
DE3868343D1 (de) 1992-03-26
ATE72611T1 (de) 1992-02-15
JPS63257146A (ja) 1988-10-25
DE8704769U1 (de) 1988-07-28
JP2563096B2 (ja) 1996-12-11
EP0288417A1 (fr) 1988-10-26

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