EP0069694A3 - Contact system for gas blast circuit breaker - Google Patents

Contact system for gas blast circuit breaker Download PDF

Info

Publication number
EP0069694A3
EP0069694A3 EP82730074A EP82730074A EP0069694A3 EP 0069694 A3 EP0069694 A3 EP 0069694A3 EP 82730074 A EP82730074 A EP 82730074A EP 82730074 A EP82730074 A EP 82730074A EP 0069694 A3 EP0069694 A3 EP 0069694A3
Authority
EP
European Patent Office
Prior art keywords
contact
piece
switching
switch
bridging
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Withdrawn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
EP82730074A
Other languages
German (de)
French (fr)
Other versions
EP0069694A2 (en
Inventor
Helmut Ing. Grad. Beier
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 EP0069694A2 publication Critical patent/EP0069694A2/en
Publication of EP0069694A3 publication Critical patent/EP0069694A3/en
Withdrawn legal-status Critical Current

Links

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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

Bei Druckgas-Leistungsschaltern besteht das Problem, die für die Führung des Nennstromes und des Kurzschluß­ stromes vor dem Öffnen des Kontaktsystems bestimmten Hauptstrombahnen vor Lichtbogeneinwirkungen zu schüt­ zen. Insbesondere Kontaktsysteme mit einem düsenförmi­ gen feststehenden Schaltstück (4), mit einem zweiten gleich­ achsig angeordneten düsenförmigen, axial beweglichen Schaltstück (5) und einem beiden gemeinsamen bewegli­ chen Überbrückungsschaltstück (6) sollen die für die Nenn­ stromübertragung vorgesehenen Kontaktelemente (6a) des Überbrückungsschaltstückes (6) an der Führung des Lichtbo­ gens nicht teilnehmen, um eine Erhöhung der dielektrischen Festigkeit der Trennstrecke (T) zu erzielen. Hierzu liegt das zweite Schaltstück (5) in der Einschaltstellung unter Feder­ kraft stirnseitig am ersten Schaltstück (4) an. Im Verlauf des Ausschaltvorganges wird durch das vom ersten Schaltstück (4) ablaufende Überbrückungsschaltstück (6) das zweite Schaltstück (5) verzögert in die Trennstellung (T) überführt. Der gezogene Lichtbogen wirkt nur zwischen dem ersten und dem zweiten Schaltstück, (4 und 5), das mit abbrandfesten Graphitelektroden ausgestattet werden kann. The problem with compressed gas circuit breakers is those for guiding the nominal current and the short circuit current before opening the contact system Protect main current paths from arcing Zen. In particular contact systems with a nozzle-shaped gene fixed switching piece (4), with a second same axially arranged nozzle-shaped, axially movable Switch piece (5) and a two common movable Chen bridging contact (6) are intended for the nominal current transmission provided contact elements (6a) of Bridging switching piece (6) on the guide of the Lichtbo gens not participate in order to increase the dielectric To achieve strength of the separation distance (T). That is why second contact piece (5) in the switch-on position under spring force on the face of the first contact piece (4). In the course of Switching off is by the first contact (4) expiring bypass switch (6) the second Switching piece (5) transferred to the disconnected position (T) with a delay. The drawn arc only works between the first and the second contact piece, (4 and 5), which with erosion-resistant Graphite electrodes can be equipped.

EP82730074A 1981-07-02 1982-06-02 Contact system for gas blast circuit breaker Withdrawn EP0069694A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813126744 DE3126744A1 (en) 1981-07-02 1981-07-02 CONTACT SYSTEM FOR COMPRESSED GAS CIRCUIT BREAKERS
DE3126744 1981-07-02

Publications (2)

Publication Number Publication Date
EP0069694A2 EP0069694A2 (en) 1983-01-12
EP0069694A3 true EP0069694A3 (en) 1984-09-26

Family

ID=6136295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82730074A Withdrawn EP0069694A3 (en) 1981-07-02 1982-06-02 Contact system for gas blast circuit breaker

Country Status (3)

Country Link
US (1) US4439652A (en)
EP (1) EP0069694A3 (en)
DE (2) DE3126744A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323865C2 (en) * 1983-06-29 1991-01-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka High-voltage switching chamber
DE3331819A1 (en) * 1983-09-01 1985-03-21 Siemens AG, 1000 Berlin und 8000 München DISCONNECTOR FOR METAL-ENCLOSED, COMPRESSED-GAS INSULATED HIGH-VOLTAGE SWITCHGEAR
DE4217232A1 (en) * 1992-05-20 1993-11-25 Siemens Ag Electrical high-voltage power switch - has compression system for quenching gas with cylinder floors made of material with good electrical conductivity

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH519773A (en) * 1970-08-14 1972-02-29 Bbc Brown Boveri & Cie Contact arrangement for pressure gas switch
DE2444943B1 (en) * 1974-09-17 1976-03-11 Siemens Ag Electric pressurized gas circuit breaker with a switching path formed by two basic switching pieces and a bridge switching piece
FR2287764A1 (en) * 1974-10-11 1976-05-07 Reyrolle Parsons Ltd HIGH VOLTAGE CIRCUIT SWITCHES FOR CIRCUIT BREAKERS
DE2703550B1 (en) * 1977-01-27 1978-07-13 Siemens Ag Electric switch
EP0002684A1 (en) * 1977-12-30 1979-07-11 Siemens Aktiengesellschaft Fluid-blast circuit breaker
GB2089571A (en) * 1980-12-16 1982-06-23 Northern Eng Ind A Gas-blast Circuit Interrupter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2057344A5 (en) * 1969-08-12 1971-05-21 Merlin Gerin
CH524886A (en) * 1970-12-01 1972-06-30 Bbc Brown Boveri & Cie Electric compression switch
JPS5559613A (en) * 1978-10-30 1980-05-06 Tokyo Shibaura Electric Co Gas breaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH519773A (en) * 1970-08-14 1972-02-29 Bbc Brown Boveri & Cie Contact arrangement for pressure gas switch
DE2444943B1 (en) * 1974-09-17 1976-03-11 Siemens Ag Electric pressurized gas circuit breaker with a switching path formed by two basic switching pieces and a bridge switching piece
FR2287764A1 (en) * 1974-10-11 1976-05-07 Reyrolle Parsons Ltd HIGH VOLTAGE CIRCUIT SWITCHES FOR CIRCUIT BREAKERS
DE2703550B1 (en) * 1977-01-27 1978-07-13 Siemens Ag Electric switch
EP0002684A1 (en) * 1977-12-30 1979-07-11 Siemens Aktiengesellschaft Fluid-blast circuit breaker
GB2089571A (en) * 1980-12-16 1982-06-23 Northern Eng Ind A Gas-blast Circuit Interrupter

Also Published As

Publication number Publication date
DE3126744A1 (en) 1983-01-20
EP0069694A2 (en) 1983-01-12
US4439652A (en) 1984-03-27
DE8119801U1 (en) 1984-11-29

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Legal Events

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

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AK Designated contracting states

Designated state(s): CH DE FR GB LI

PUAL Search report despatched

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AK Designated contracting states

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

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18D Application deemed to be withdrawn

Effective date: 19850528

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BEIER, HELMUT, ING. GRAD.