EP0154004A1 - Coupe circuit à gaz comprimé automatique - Google Patents

Coupe circuit à gaz comprimé automatique Download PDF

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Publication number
EP0154004A1
EP0154004A1 EP84114610A EP84114610A EP0154004A1 EP 0154004 A1 EP0154004 A1 EP 0154004A1 EP 84114610 A EP84114610 A EP 84114610A EP 84114610 A EP84114610 A EP 84114610A EP 0154004 A1 EP0154004 A1 EP 0154004A1
Authority
EP
European Patent Office
Prior art keywords
autopneumatic
cylinder
gas pressure
pressure switch
switch according
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.)
Withdrawn
Application number
EP84114610A
Other languages
German (de)
English (en)
Inventor
Dietrich Dipl.-Ing. Hoffmann
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0154004A1 publication Critical patent/EP0154004A1/fr
Withdrawn legal-status Critical Current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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper

Definitions

  • the invention relates to an autopneumatic gas pressure switch with the features of the preamble of claim 1.
  • the object of the invention is therefore to design a gas pressure switch of the type described in the introduction in such a way that the damping effect of the pump volume is largely retained when the pump is switched on, but pressure equalization takes place quickly after the switch-on movement has been effected.
  • the features specified in the characterizing part of claim 1 serve to achieve this object.
  • the main advantage of the switch according to the invention is the fact that the openings in the cylinder wall during most of the switch-on stroke and during the switch-off movement can be made without function and with little effort.
  • the contact system is arranged within an insulator 1 in a closed switching chamber.
  • the switch has an upper plate-shaped electrical connection 2 and a lower plate-shaped electrical connection 3.
  • the part of the switching path which receives the switching arc is formed by a fixed mating contact pin 4, which is conductively connected to the upper exclusion plate 2, in connection with a movable power contact piece 5.
  • the arcing contact 5 is conductively connected to a movable cylinder 6, which cooperates with a fixed piston 7, which is attached to the lower connection plate 3, as a switching path pump for generating the required blowing pressure.
  • the cylinder 6 is conductively connected to a fork 8 for the introduction of current and force, which in turn is connected to a drive rod 9.
  • the drive rod is actuated in the usual way by a hydraulic, pneumatic or spring drive or the like. It is guided inside supports 10, at the lower end of which the drive is attached.
  • the fork 8 is in conductive connection with the lower connection plate 3 via sliding contacts 11.
  • an insulating nozzle 12 is fixedly connected, from which the gas compressed in the switching section pump 6, 7 emerges when switching off and blows the switching arc that occurs between the contact pieces 4, 5 arises.
  • the insulating nozzle 12 has a screen 13 which can move in a fixed cylinder 14 connected to the upper connecting plate 2.
  • a parallel contact path to increase the current carrying capacity consisting of two contact pieces 15 and 16, is provided.
  • the contact piece 15 is conductively connected to the upper connection plate 2 and is fixed.
  • the contact piece 16 is conductively connected to the movable cylinder 6 and moves with it.
  • the current flows in the switched-on state between the upper and the lower connection plate 2, 3 in parallel via the two current paths, parallel contact path 14, 15, 16 and the arcing contact path 4, 5.
  • the drive rod 9 is moved downward . First, the parallel contact pieces 15, 16 and then the arcing of the power contact paths 4, 5 are separated.
  • the switching path pump 6, 7 generates a high blowing pressure in the continuously decreasing volume 21 during the switching-off movement, the compressed insulating gas, for example SF 6 , emerging from the insulating nozzle 12 upwards, blowing the arc and opening 17, 18 in the upper connection plate 2 can escape into the hood 19 of the switching chamber or after cooling also into the other rooms 20 of the pole column.
  • the compressed insulating gas for example SF 6
  • a number of openings 22 are arranged in the pump cylinder 6 so that they have no function during most of the switch-on stroke and only become effective shortly before the end position is reached.
  • a simple constructive solution consists in a ring of bores 22 which, in the end switch-on position, are just above the Pistons 7 lie. Due to this inflow cross section, which should be a multiple of the inflow cross section through the nozzle 12, a pressure equalization between the pump volume 21 and the other spaces of the pole column can be established in a short time at the end of the switch-on stroke. In contrast, during the switch-on stroke, before the bores 22 overflow the piston 7, they connect spaces of the same pressure and are ineffective.
  • the openings may be round or of some other shape, e.g. be rectangular.
  • the rectangular shape allows the largest inflow cross-section with the smallest stroke, while round bores are preferred when using a sealing ring 23 on the circumference of the piston 7.
  • the openings can be distributed in one or more rows on the circumference of the pump cylinder 6.

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  • Circuit Breakers (AREA)
EP84114610A 1983-12-22 1984-12-01 Coupe circuit à gaz comprimé automatique Withdrawn EP0154004A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3346353 1983-12-22
DE19833346353 DE3346353A1 (de) 1983-12-22 1983-12-22 Autopneumatischer druckgasschalter

Publications (1)

Publication Number Publication Date
EP0154004A1 true EP0154004A1 (fr) 1985-09-11

Family

ID=6217658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114610A Withdrawn EP0154004A1 (fr) 1983-12-22 1984-12-01 Coupe circuit à gaz comprimé automatique

Country Status (4)

Country Link
EP (1) EP0154004A1 (fr)
JP (1) JPS60154424A (fr)
DE (1) DE3346353A1 (fr)
IN (1) IN160229B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2312603A1 (fr) * 2009-10-15 2011-04-20 ABB Technology AG Interrupteur-sectionneur rotatif

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210086U1 (de) * 1992-07-22 1993-11-25 Siemens AG, 80333 München Hochspannungs-Leistungsschalter
FR2694987B1 (fr) * 1992-08-21 1994-10-07 Alsthom Gec Disjoncteur à haute tension ayant une chambre de coupure à volume de soufflage variable.
DE102017212021A1 (de) 2017-07-13 2019-01-17 Siemens Aktiengesellschaft Anordnung und Verfahren zum Dämpfen von Schaltbewegungen in Hochspannungsleistungsschaltern

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2272477A1 (fr) * 1974-05-22 1975-12-19 Gratzmuller J
US3946183A (en) * 1974-04-05 1976-03-23 Westinghouse Electric Corporation Puffer piston gas blast circuit interrupter with insulating nozzle member
FR2352386A1 (fr) * 1975-12-29 1977-12-16 Merlin Gerin Disjoncteur electrique a dispositif d'autosoufflage muni d'espaces de compression et d'aspiration de gaz isolant
DE2844323A1 (de) * 1977-12-12 1979-06-13 Sprecher & Schuh Ag Druckgasschalter
EP0016983A1 (fr) * 1979-03-09 1980-10-15 Licentia Patent-Verwaltungs-GmbH Disjoncteur à gaz comprimé autopneumatique
EP0130842A2 (fr) * 1983-07-05 1985-01-09 Westinghouse Electric Corporation Interrupteur de haute tension à soufflage de gaz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471373A (en) * 1977-11-17 1979-06-07 Mitsubishi Electric Corp Gas breaker
DE3127962A1 (de) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Elektrischer druckgasschalter
DE3129902A1 (de) * 1981-07-24 1983-02-10 Siemens AG, 1000 Berlin und 8000 München Hochspannungs-leistungsschalter
US4440997A (en) * 1982-05-28 1984-04-03 Brown Boveri Electric Inc. Puffer interrupter with arc energy assist

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946183A (en) * 1974-04-05 1976-03-23 Westinghouse Electric Corporation Puffer piston gas blast circuit interrupter with insulating nozzle member
FR2272477A1 (fr) * 1974-05-22 1975-12-19 Gratzmuller J
FR2352386A1 (fr) * 1975-12-29 1977-12-16 Merlin Gerin Disjoncteur electrique a dispositif d'autosoufflage muni d'espaces de compression et d'aspiration de gaz isolant
DE2844323A1 (de) * 1977-12-12 1979-06-13 Sprecher & Schuh Ag Druckgasschalter
EP0016983A1 (fr) * 1979-03-09 1980-10-15 Licentia Patent-Verwaltungs-GmbH Disjoncteur à gaz comprimé autopneumatique
EP0130842A2 (fr) * 1983-07-05 1985-01-09 Westinghouse Electric Corporation Interrupteur de haute tension à soufflage de gaz

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2312603A1 (fr) * 2009-10-15 2011-04-20 ABB Technology AG Interrupteur-sectionneur rotatif
WO2011044983A1 (fr) * 2009-10-15 2011-04-21 Abb Technology Ag Interrupteur-sectionneur rotatif

Also Published As

Publication number Publication date
JPS60154424A (ja) 1985-08-14
DE3346353C2 (fr) 1992-08-06
IN160229B (fr) 1987-07-04
DE3346353A1 (de) 1985-07-04

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH FR GB IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860512

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOFFMANN, DIETRICH, DIPL.-ING.