WO1994017539A1 - Paquet de plaques d'extinction pour une chambre d'extinction d'arc - Google Patents

Paquet de plaques d'extinction pour une chambre d'extinction d'arc Download PDF

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Publication number
WO1994017539A1
WO1994017539A1 PCT/AT1993/000193 AT9300193W WO9417539A1 WO 1994017539 A1 WO1994017539 A1 WO 1994017539A1 AT 9300193 W AT9300193 W AT 9300193W WO 9417539 A1 WO9417539 A1 WO 9417539A1
Authority
WO
WIPO (PCT)
Prior art keywords
arc
quenching
extinguishing
holding part
openings
Prior art date
Application number
PCT/AT1993/000193
Other languages
German (de)
English (en)
Inventor
Alfred Nyzner
Original Assignee
Felten & Guilleaume Austria 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 & Guilleaume Austria Ag filed Critical Felten & Guilleaume Austria Ag
Priority to AU56187/94A priority Critical patent/AU674719B2/en
Priority to DE59305471T priority patent/DE59305471D1/de
Priority to EP94901686A priority patent/EP0681737B1/fr
Publication of WO1994017539A1 publication Critical patent/WO1994017539A1/fr
Priority to FI953417A priority patent/FI108681B/fi
Priority to NO952868A priority patent/NO307279B1/no
Priority to GR970400308T priority patent/GR3022624T3/el

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to a quenching plate package for an arc quenching chamber for switches, in particular for circuit breakers, consisting of quenching plates arranged in parallel or in a fan shape, a holding part made of insulating material with a U-shaped cross-sectional shape, in which the quenching plates are fixed in their position and the arc outlet openings in its web opposite the arc inlet, which are each arranged between adjacent quenching plates.
  • Quenching plate package for arc quenching chambers have been proposed in the most varied of embodiments and have the purpose of quickly guiding the arc which arises when switching, in particular the arc which arises when circuit breakers are triggered when the contacts are opened, the arc forming between the opening contacts partly blown by the magnetic field of the switching elements, partly by the suction effect of the quenching plate package to the quenching plates, then the hot gases between the quenching plates are cooled and led to the arc outlet openings of the arc quenching chamber and through these further to the blow-off opening of the switch.
  • Extinguishing sheet package for arc quenching chambers also have the task of dividing the arc and thus increasing the arc voltage.
  • a problem with the known quenching plate stack for arc quenching chambers also consists in the fact that after the ionized gases have emerged from the arc exit openings, so-called external flashover occurs between adjacent arc exit openings. Such external flashovers can be prevented by keeping the arc exit openings small. Small arc outlet openings have the disadvantage, however, that they obstruct the gas outlet and are fluidically unfavorable. It has therefore already been proposed to provide the arc outlet openings in the legs of the U-shaped molded part.
  • the invention is based on the object of proposing a quenching plate package for an arc quenching chamber which, without impairing its effect and function, improves the blowing off of the exhaust gases to the blow-off openings of the switch and prevents flashovers.
  • this is achieved in that at least one rib, which separates adjacent arc exit openings from one another, projects outwards from the outside of the web of the U-shaped holding part.
  • the measure according to the invention results in improved flow conditions, so that the arc gases can be more easily controlled and blown off more easily.
  • the at least one rib which projects from the web on the outside of the web according to the invention separates adjacent arc exit openings on the outside of the web, so that the air gap between the arc exit openings of adjacent chambers (between two adjacent quenching plates provided in each case) is increased . Overturns are thus prevented even with larger-sized and therefore aerodynamic arc outlet openings, even though the arc outlet openings are provided in the web of the U-shaped molded part.
  • the at least one rib does not completely surround the light exit openings in the web of the U-shaped molded part. Rather, an embodiment has proven to be advantageous in which it is provided that the rib surrounds the arc exit openings essentially over half its circumference. It is only important that the air gap between adjacent arc exit openings is kept so large that arcing is prevented.
  • a simple and yet effective construction of the quenching plate package according to the invention for an arc quenching chamber results if the rib is formed in a serpentine shape and surrounds opposite areas of adjacent arc exit openings.
  • the invention also extends to an embodiment of the quenching plate package for an arc quenching chamber, in which it is provided that two rows of arc exit openings are provided in the web of the U-shaped holding part. If two ribs are provided in this embodiment, it can be provided according to the invention that one rib runs mirror-symmetrically to the other rib. This results in a total of three channels on the outside of the web of the holding part which has the arc exit openings (one between the ribs and one each between a rib and the adjacent wall of the housing of the switch, into which the quenching plate package for the arc quenching chamber is inserted). , through which the exhaust gases are discharged without the risk of external flashovers.
  • the available passage cross-section of the outlet openings for the arc or the arc gases when blowing off from the quenching plate package for the arc quenching chamber can be increased without the risk of outside flashovers if, according to a proposal of the invention, it is provided that the arc outlet openings are designed as elongated holes, the longer extent of which runs parallel to the quenching plates.
  • the at least one rib is preferably formed in one piece with the web of the U-shaped holding part.
  • a simple construction of the quenching plate package according to the invention for the arc quenching chamber results if it is provided that the quenching plates on their longitudinal edges carry strip-shaped projections which protrude from them and lie in the plane of the quenching plates and which extend into correspondingly shaped openings engage in the legs of the U-shaped holding part.
  • An embodiment has proven itself in which it is provided that protrusions carried by the extinguishing plates protrude into all openings provided in the legs of the U-shaped holding part.
  • FIG. 1 is a side view of a first embodiment
  • Fig. 3 is a section along the line III-III in Fig. 1 and
  • Fig. 4 partially seen the arc quenching chamber of Fig. 1 from above of Fig. 1.
  • the quenching plate packet 1 for an arc quenching chamber has a plurality of quenching plates 2 which are arranged parallel to one another. Each quenching plate 2 has an essentially V-shaped slot 3 on the arc entry side.
  • each baffle plate 2 has two strip-shaped projections 5 and 6 on both longitudinal side edges, which protrude into corresponding opening positions. Solutions 7 and 8 are used in the legs 9 and 10 of the holding part 4. Apart from the openings 7 and 8 which are filled by the projections 5 and 6 of the extinguishing plates 2 and are therefore essentially closed, the holding part 4 has no openings in its legs 9 and 10.
  • arc exit openings 14 arranged in two rows 12 and 13 are provided in the web 11 of the holding part 4. 4, the arc exit openings 14 have the shape of elongated holes, the longer extension of which is aligned parallel to the quenching plates 2.
  • two ribs 15 and 16 are provided, which, as also shown in FIG. 4, run in a serpentine shape and surround each of the arc exit openings 14 essentially over half their circumference. 4 also shows that the ribs 15 and 16 are arranged mirror-symmetrically to the longitudinal center plane 17 of the quenching plate stack for an arc quenching chamber.
  • serpentine ribs 15 and 16 which protrude from the outside of the web 11 of the holding part 4 and partially surround the arc exit openings 14, ribs of a different shape can also be provided.
  • ribs are conceivable that are ring-shaped or partially ring-shaped. It is only essential that the air gap between adjacent arc exit openings is increased by the rib or the ribs.
  • the invention can be represented as follows, for example:
  • a quenching plate packet 1 for an arc quenching chamber consists of several quenching plates 2, which are inserted in a U-shaped holding part 4 made of insulating material.
  • Arc outlet openings 14 are provided in the web 11 of the holding part 4 opposite the arc inlet.
  • the web 11 carries on its outside two serpentine ribs 15, 16, which enlarge the air gap between adjacent arcing outlet openings 14. This prevents outside flashovers, although the arc outlet openings 14 can be dimensioned so large that the outflow of the ionized arc gases from the quenching plate packet 1 for an arc quenching chamber is not impeded.
  • a total of three channels for the gas flow are formed by the ribs 15, 16 together with the walls of the housing in which the quenching plate packet 1 is accommodated. The outflow of the arc gases is thereby further promoted.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Toys (AREA)
  • Vacuum Packaging (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Basic Packing Technique (AREA)

Abstract

Un paquet de plaques d'extinction (1) pour une chambre d'extinction d'arc se compose de plusieurs tôles d'extinction placées dans une pièce de maintien (4) en forme de U, réalisée dans un matériau isolant. Des orifices de sortie d'arc électrique (14) sont pratiqués dans l'âme de la pièce de maintien (4), qui est opposée à l'entrée de l'arc. L'âme comporte, sur son côté extérieur, deux nervures (15, 16) sinueuses qui augmentent l'entrefer entre des orifices de sortie d'arc électrique (14) adjacents. Cette structure permet d'éviter que des décharges ne surviennent à l'extérieur, bien que les orifices de sortie d'arc électrique (14) soient suffisamment grands pour que les gaz ionisés d'arc électrique puissent s'échapper librement du paquet de plaques d'extinction (1). Conjointement avec les parois du boîtier dans lequel se trouve le paquet de plaques d'extinction (1), les nervures (15, 16) forment au total trois canaux pour l'écoulement des gaz, ce qui favorise l'écoulement des gaz d'arc électrique.
PCT/AT1993/000193 1993-01-27 1993-12-13 Paquet de plaques d'extinction pour une chambre d'extinction d'arc WO1994017539A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU56187/94A AU674719B2 (en) 1993-01-27 1993-12-13 Extinguishing stack for an arc extinguishing chamber
DE59305471T DE59305471D1 (de) 1993-01-27 1993-12-13 Löschblechpaket für eine lichtbogenlöschkammer
EP94901686A EP0681737B1 (fr) 1993-01-27 1993-12-13 Paquet de plaques d'extinction pour une chambre d'extinction d'arc
FI953417A FI108681B (fi) 1993-01-27 1995-07-12 Valokaaren katkaisukammiota varten oleva katkaisulevypaketti
NO952868A NO307279B1 (no) 1993-01-27 1995-07-19 Slukkeblikkpakke for et lysbue-slukkekammer
GR970400308T GR3022624T3 (en) 1993-01-27 1997-02-20 Extinguishing stack for an arc extinguishing chamber.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0013493A AT404770B (de) 1993-01-27 1993-01-27 Lichtbogenlöschkammer für schalter
ATA134/93 1993-01-27

Publications (1)

Publication Number Publication Date
WO1994017539A1 true WO1994017539A1 (fr) 1994-08-04

Family

ID=3482432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1993/000193 WO1994017539A1 (fr) 1993-01-27 1993-12-13 Paquet de plaques d'extinction pour une chambre d'extinction d'arc

Country Status (12)

Country Link
EP (1) EP0681737B1 (fr)
AT (2) AT404770B (fr)
AU (1) AU674719B2 (fr)
DE (1) DE59305471D1 (fr)
DK (1) DK0681737T3 (fr)
ES (1) ES2100665T3 (fr)
FI (1) FI108681B (fr)
GR (1) GR3022624T3 (fr)
HR (1) HRP940039B1 (fr)
NO (1) NO307279B1 (fr)
SI (1) SI9300669B (fr)
WO (1) WO1994017539A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105659344A (zh) * 2014-02-27 2016-06-08 沙尔特宝有限公司 用于接触器的消弧室以及用于消除电弧的接触器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110790A (en) * 1961-05-09 1963-11-12 Gen Electric Electric circuit interrupter
EP0051756A1 (fr) * 1980-11-08 1982-05-19 BROWN, BOVERI & CIE Aktiengesellschaft Dispositif d'extinction d'arc éléctrique, notamment pour disjoncteur de protection
EP0263293A1 (fr) * 1986-09-06 1988-04-13 Asea Brown Boveri Aktiengesellschaft Dispositif d'extinction d'arc
CH665052A5 (de) * 1983-05-18 1988-04-15 Villamos Ipari Kutato Intezet Lichtbogenloescheinrichtung eines elektrischen schaltgeraetes.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110790A (en) * 1961-05-09 1963-11-12 Gen Electric Electric circuit interrupter
EP0051756A1 (fr) * 1980-11-08 1982-05-19 BROWN, BOVERI & CIE Aktiengesellschaft Dispositif d'extinction d'arc éléctrique, notamment pour disjoncteur de protection
CH665052A5 (de) * 1983-05-18 1988-04-15 Villamos Ipari Kutato Intezet Lichtbogenloescheinrichtung eines elektrischen schaltgeraetes.
EP0263293A1 (fr) * 1986-09-06 1988-04-13 Asea Brown Boveri Aktiengesellschaft Dispositif d'extinction d'arc

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Derwent's abstract no. D0498 E/11, Woche 8211,Zusammenfassung von SU 836 691, (NW EXTRAMURAL POLY), 1981-06-10 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105659344A (zh) * 2014-02-27 2016-06-08 沙尔特宝有限公司 用于接触器的消弧室以及用于消除电弧的接触器

Also Published As

Publication number Publication date
NO307279B1 (no) 2000-03-06
FI953417A (fi) 1995-07-12
DK0681737T3 (da) 1997-03-10
AU674719B2 (en) 1997-01-09
DE59305471D1 (de) 1997-03-27
ES2100665T3 (es) 1997-06-16
SI9300669B (sl) 2002-02-28
ATE148958T1 (de) 1997-02-15
GR3022624T3 (en) 1997-05-31
AU5618794A (en) 1994-08-15
EP0681737B1 (fr) 1997-02-12
FI108681B (fi) 2002-02-28
EP0681737A1 (fr) 1995-11-15
HRP940039B1 (en) 2000-04-30
AT404770B (de) 1999-02-25
ATA13493A (de) 1998-06-15
NO952868L (no) 1995-07-19
SI9300669A (en) 1994-09-30
HRP940039A2 (en) 1996-08-31
NO952868D0 (no) 1995-07-19
FI953417A0 (fi) 1995-07-12

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