EP0157242B1 - Lichtbogenlöscheinrichtung für Schaltgeräte der elektrischen Energietechnik - Google Patents

Lichtbogenlöscheinrichtung für Schaltgeräte der elektrischen Energietechnik Download PDF

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Publication number
EP0157242B1
EP0157242B1 EP85102869A EP85102869A EP0157242B1 EP 0157242 B1 EP0157242 B1 EP 0157242B1 EP 85102869 A EP85102869 A EP 85102869A EP 85102869 A EP85102869 A EP 85102869A EP 0157242 B1 EP0157242 B1 EP 0157242B1
Authority
EP
European Patent Office
Prior art keywords
quenching
arc
plates
contact piece
installation 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.)
Expired - Lifetime
Application number
EP85102869A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0157242A3 (en
EP0157242A2 (de
Inventor
Rolf Dirks
Wolfgang Pehlken
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Felten and Guilleaume Energietechnik 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 Felten and Guilleaume Energietechnik AG filed Critical Felten and Guilleaume Energietechnik AG
Priority to AT85102869T priority Critical patent/ATE56562T1/de
Publication of EP0157242A2 publication Critical patent/EP0157242A2/de
Publication of EP0157242A3 publication Critical patent/EP0157242A3/de
Application granted granted Critical
Publication of EP0157242B1 publication Critical patent/EP0157242B1/de
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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H33/10—Metal parts

Definitions

  • the invention relates to an arc extinguishing device for switching devices in electrical power engineering according to the preamble of claim 1.
  • Arc extinguishing devices have the task of extinguishing the arc that occurs in switches when switched off. Such an arc occurs when the contacts are opened by the evaporation of the last metal bridge due to the heat of the current. With switch disconnectors and circuit breakers, it is important to make this arc disappear as quickly as possible and to create sufficient insulation between the contacts. While with direct current it is important to achieve a high arc voltage in the switching chambers, alternating current is the effective reduction of the charge carriers in the short time between a zero current crossing and the oscillation of the recurring voltage. It depends very much on the type of switch whether the final power interruption occurs after one or more zero crossings. It is important that the arc gap is sufficiently cooled.
  • Circuit breakers for medium voltage that work according to this method require relatively large quenching chambers, which are very expensive due to their complexity.
  • a quenching device is already known from GB-A-1 107 976.
  • This device is housed in a substantially cuboid housing with parallel, narrow end walls and parallel wide side walls.
  • a large number of quenching plates, alternately in a slightly longer and a shorter version, is arranged parallel to the narrow end walls.
  • the two contact pieces are designed so that they touch each other point-like in the closed state.
  • the movable contact is attached to a swivel bracket.
  • both contact pieces are equipped with arc horns in the direction of the quenching plates. Air is provided as the insulating medium here.
  • the extinguishing device is for a switch for 600 V r.m.s. up to a peak current of 120 kA. For this reason, a considerable amount of extinguishing plates is required.
  • the circuit breaker designed as a pressure gas switch has a rectilinearly movable contact piece and a pump device coupled to it, arranged directly next to the switching section and parallel to it and movable in the same direction as the movable contact piece, which generates a gas flow running across the opening arc, and it is one with one Arcing-promoting gas-filled, common housing for the switching path and the pump device available.
  • This gas flow drives the arc into a funnel in which the plates are inserted in a fanned out shape.
  • the plates are arranged close to one another in the inlet opening of the funnel and are at a greater distance from one another in the upper region of the funnel.
  • the plates are of different lengths.
  • the funnel design of the extinguishing device also requires a relatively large space.
  • the invention is therefore based on the object of developing an arc extinguishing device for switching devices, particularly in the medium and high voltage range, which, with the same performance, requires less effort than the previously known devices.
  • the advantages achieved by the invention are that the use of quenching plates reduces the size of the quenching device.
  • this extinguishing device can be easily manufactured and easily installed in existing systems.
  • a movable contact piece 1 is shown as a double separating knife, the pivot point of which rests on a bushing 2.
  • the moving con Takt Division is connected to a coupling rod 3 belonging to a drive.
  • the counterpart to the movable contact piece forms a fixed contact piece 4, which is fastened on a busbar 5.
  • Supports 6 are used to hold the busbar.
  • the quenching chamber device consists of a quenching chamber 7 which is equipped with a plurality of quenching plates 8.
  • the quenching plates are arranged parallel and overlapping, the arc inlet openings 9 pointing towards the movable contact piece.
  • the arc entry openings are further arranged such that the distance between the end of the movable contact piece and the individual arc entry openings increases as the opening of the movable contact piece increases.
  • the individual quenching plates are surrounded by quench chamber walls 10.
  • Plastic holders 11 and 12 establish the connection between the two arcing chamber walls. In addition, the plastic holder 12 still serves to secure the arcing chamber on the busbar.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP85102869A 1984-04-04 1985-03-13 Lichtbogenlöscheinrichtung für Schaltgeräte der elektrischen Energietechnik Expired - Lifetime EP0157242B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102869T ATE56562T1 (de) 1984-04-04 1985-03-13 Lichtbogenloescheinrichtung fuer schaltgeraete der elektrischen energietechnik.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843412566 DE3412566A1 (de) 1984-04-04 1984-04-04 Lichtbogenloescheinrichtung fuer schaltgeraete der elektrischen energietechnik
DE3412566 1984-04-04

Publications (3)

Publication Number Publication Date
EP0157242A2 EP0157242A2 (de) 1985-10-09
EP0157242A3 EP0157242A3 (en) 1987-12-16
EP0157242B1 true EP0157242B1 (de) 1990-09-12

Family

ID=6232594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102869A Expired - Lifetime EP0157242B1 (de) 1984-04-04 1985-03-13 Lichtbogenlöscheinrichtung für Schaltgeräte der elektrischen Energietechnik

Country Status (5)

Country Link
US (1) US4629840A (ja)
EP (1) EP0157242B1 (ja)
JP (1) JPH0650607B2 (ja)
AT (1) ATE56562T1 (ja)
DE (3) DE3412566A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933535A1 (de) * 1989-10-07 1991-04-11 Felten & Guilleaume Energie Isoliergasgefuellte, gekapselte schaltanlage mit steckanschluss
FI87614C (fi) * 1991-05-06 1993-01-25 Abb Stroemberg Saehkoenjakelu Slaeckningsanordning foer ljusbaoge foer en kopplingsapparatur
DE4317354A1 (de) * 1993-05-25 1994-12-01 Sachsenwerk Ag Lasttrennschalter
DE4409495A1 (de) * 1994-03-19 1995-09-21 Sachsenwerk Ag Lichtbogenlöscheinrichtung mit Löschblechen
US9129761B2 (en) 2012-12-20 2015-09-08 Eaton Electrical Ip Gmbh & Co. Kg Switching device suitable for direct current operation

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR849484A (ja) * 1939-11-24
US840743A (en) * 1906-06-07 1907-01-08 George Beres Adjustable shade or curtain fixture.
US1107976A (en) * 1912-04-02 1914-08-18 John Francis Mccoy Tamp.
US1914129A (en) * 1928-04-05 1933-06-13 Westinghouse Electric & Mfg Co Arc quencher for safety switches
US2757261A (en) * 1951-07-19 1956-07-31 Westinghouse Electric Corp Circuit interrupters
FR1183278A (fr) * 1957-11-05 1959-07-06 Merlin Gerin Perfectionnements aux interrupteurs à soufflage magnétique
DE1219578B (de) * 1960-12-07 1966-06-23 Licentia Gmbh Selbstschalter in Schmalbauform mit Einfachunterbrechung
DE1232644B (de) * 1961-03-10 1967-01-19 Licentia Gmbh Schaltgeraet mit einer eine Loeschblechanordnung enthaltenden Lichtbogenkammer
DE1413990B2 (de) * 1962-04-26 1969-11-27 Licentia Patent-Verwaltungs-GmbH, 6000 Prankfurt Lichtbogenlöschicammer für Selbstschalter
FR1445425A (fr) * 1964-09-03 1966-07-08 Siemens Ag Interrupteur électrique perfectionné à gaz comprimé
US3291949A (en) * 1964-09-18 1966-12-13 Westinghouse Electric Corp Fluid-blast circuit interrupters having improved arc splitter structure
DE1540591C3 (de) * 1965-11-17 1974-09-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Lasttrennschalter mit beweglichem Schaltstück je Polbahn
DE1926355B1 (de) * 1969-05-23 1970-11-12 Siemens Ag Lichtbogenl¦schkammer für Niederspannungsleistungsschalter
CA938965A (en) * 1970-01-30 1973-12-25 Westinghouse Electric Corporation Circuit interrupters utilizing supersonic flow
JPS49129049U (ja) * 1973-03-06 1974-11-06
CH557087A (de) * 1973-04-13 1974-12-13 Bbc Brown Boveri & Cie Druckgaswechselstromschalter mit einem geschlossenen loeschkammersystem.
DE2362089A1 (de) * 1973-12-14 1975-06-26 Degussa Loeschbleche fuer elektrische schalter
FR2371762A1 (fr) * 1976-11-18 1978-06-16 Cem Comp Electro Mec Appareil electrique de coupure a haute tension, notamment un disjonct a auto-soufflage de l'arc electrique de coupure par un gaz
US4362915A (en) * 1978-02-17 1982-12-07 Square D Company Electric arc confining device
JPS5521417A (en) * 1978-07-28 1980-02-15 Seiko Epson Corp Liquid crystal display element
CH645204A5 (de) * 1979-05-25 1984-09-14 Bbc Brown Boveri & Cie Elektrischer schalter fuer grosse stroeme.
DE3003713A1 (de) * 1980-02-01 1981-08-06 Concordia Sprecher-Schaltgeräte GmbH, 7024 Filderstadt Lasttrennschalter

Also Published As

Publication number Publication date
JPS60227323A (ja) 1985-11-12
DE3412566A1 (de) 1985-10-17
DE3579607D1 (de) 1990-10-18
ATE56562T1 (de) 1990-09-15
EP0157242A3 (en) 1987-12-16
JPH0650607B2 (ja) 1994-06-29
EP0157242A2 (de) 1985-10-09
DE8410454U1 (de) 1985-05-15
US4629840A (en) 1986-12-16
DE3412566C2 (ja) 1988-01-07

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