EP0586724B1 - Disjoncteur automatique, par exemple disjoncteur de protection de ligne - Google Patents

Disjoncteur automatique, par exemple disjoncteur de protection de ligne Download PDF

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Publication number
EP0586724B1
EP0586724B1 EP92115289A EP92115289A EP0586724B1 EP 0586724 B1 EP0586724 B1 EP 0586724B1 EP 92115289 A EP92115289 A EP 92115289A EP 92115289 A EP92115289 A EP 92115289A EP 0586724 B1 EP0586724 B1 EP 0586724B1
Authority
EP
European Patent Office
Prior art keywords
arc
behind
guide
sealing means
wall
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
EP92115289A
Other languages
German (de)
English (en)
Other versions
EP0586724A1 (fr
Inventor
Gunther Dipl.-Ing. Eckert (Fh)
Christoph Dipl.-Ing. Weber (Fh)
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 AT92115289T priority Critical patent/ATE123589T1/de
Priority to EP92115289A priority patent/EP0586724B1/fr
Priority to DE59202466T priority patent/DE59202466D1/de
Publication of EP0586724A1 publication Critical patent/EP0586724A1/fr
Application granted granted Critical
Publication of EP0586724B1 publication Critical patent/EP0586724B1/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
    • 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
    • H01H9/346—Details concerning the arc formation chamber
    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Definitions

  • the invention relates to automatic switches, for example circuit breakers, in particular for direct current operation, which have walking aids for the entry of the arc into a quenching chamber with so-called quenching plates.
  • the quenching plates With their side facing the direction of the arc, the quenching plates connect to guide walls of the housing, an air gap due to the construction remaining between the guide walls and wall regions of the housing located behind them; see EP-A 0 123 090.
  • the invention has for its object to develop a circuit breaker of the type described so that the arc is promoted.
  • sealing means are arranged on the side of the fire-extinguishing plate between the guide walls and the wall areas behind it. It has been found that even small, design-related air gaps can have a strong influence on the arc running, contrary to expectations.
  • a sealant for example, strands of elastic potting compound are suitable, which is sufficiently resistant to the arc atmosphere.
  • the sealant is to be arranged perpendicular to the plane of the extinguishing plate. The sealing effect is ensured if the guide walls and / or wall areas lying behind them are more closely adjacent in the area of the sealant than outside this area.
  • the sealant exerts a force on the respective guide wall until it rests on the extinguishing plates on its end faces. Avoiding an air gap between the guide wall and the quenching plates has proven to be very advantageous for the arcing in particular in the case of direct current arcs.
  • sealant By introducing sealant, tolerance differences can be compensated and the guide walls can be securely attached to the intermediate plates. If in each case a guide wall and the wall area behind it form a projection surface in the imaginary plane lying against the end faces of the fire-extinguishing plates, the sealant can move the guide wall in the direction of the fire-extinguishing plates until it abuts against the end faces.
  • the sealant is arranged so as to be removed from the direct action of the arc due to the shape of the guide wall and / or wall regions located behind it.
  • the adjacent wall areas can form a kind of labyrinth seal.
  • the automatic switch according to FIG. 1 in the exemplary embodiment a circuit breaker, has contacts actuated by a switch lock 1 according to FIG. 2: the switch contact 2 and the fixed contact 3. These are arranged in an arcing chamber 4, which merges into an arcing chamber 5.
  • the switch lock 1, a magnetic and / or thermal release device 6 - according to FIG 2 - and the contacts 2 and 3 as well as the arc chamber 4 and the quenching chamber 5 are arranged in a housing 7 with the connecting terminals 8.
  • the quenching chamber 5 receives quenching plates 9.
  • the extinguishing plates 9 connect with their side facing the direction of the arc to guide walls 10 of the arc chamber. Between the guide walls 10 and underlying wall areas 11 of the housing 7 there remains an air gap due to the construction, which is sealed according to the invention by sealing means 12.
  • sealing means 12 strands of elastic potting compound are used as sealing means, which are arranged perpendicular to the plane of extent of the extinguishing plates.
  • the guide walls 10 and wall regions 11 located behind them are more closely adjacent in the area of the sealing means 12 than outside this area.
  • a magnetic plate 13 or also a magnetic plate 13 is arranged between the guide walls 10 and the wall regions 11 behind them in the case of direct current arcs to promote the arc running.
  • the guide walls 10 and the wall areas behind them each have one Form the projection surface onto a plane lying against the extinguishing plates 5 on their faces and perpendicular to the plane of the drawing.
  • this is achieved in that in each case the guide wall and the wall area behind it run inclined to this plane and not perpendicularly to it.
  • the sealant 12 can be applied in the assembly on the back of the guide wall 10 as a round strand and squeezed against the wall region 11 located behind it.
  • circuit breakers designed as a circuit breaker are further illustrated by way of example in FIG. Such circuit breakers are otherwise familiar in their structure.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Claims (3)

  1. Interrupteur automatique, par exemple disjoncteur de ligne, notamment pour un fonctionnement à courant continu, qui comporte des systèmes auxiliaires de guidage pour l'introduction de l'arc électrique dans une chambre d'extinction (5) comportant ce qu'on appelle des tôles d'extinction (9), qui se raccordent, par leur côté tourné vers le dispositif de guidage de l'arc électrique, à des parois de guidage (10) de la chambre (4) de l'arc électrique, une fente d'air subsistant, de construction, entre les parois de guidage (10) et des parties de paroi (11) du boîtier (7) se trouvant derrière,
    caractérisé par le fait que des moyens d'étanchéité (12) sont disposés, du côté des tôles d'extinction, entre les parois de guidage (10) et les parties de paroi se trouvant derrière (11), et qu'à cet effet des cordons ou des gouttes d'une masse de- scellement élastique sont disposés, en tant que moyens d'étanchéité (12), sur une étendue telle au moins approximativement transversalement au plan dans lequel s'étendent les tôles d'extinction (9), que la paroi de guidage (10) s'applique aux tôles d'extinction (9) par les faces frontales tournées vers ces tôles, une paroi de guidage (10) et une partie de paroi (11) se trouvant derrière formant, dans la zone des moyens d'étanchéité, une surface en projection située dans un plan imaginaire s'appliquant sur les faces frontales des tôles d'extinction.
  2. Interrupteur automatique suivant la revendication 1, caractérisé par le fait que les parois de guidage (10) et/ou les parties de paroi (11) se trouvant derrière sont plus rapprochées dans la zone des moyens d'étanchéité (12) qu'à l'extérieur de cette zone.
  3. Interrupteur automatique suivant la revendication 1, caractérisé par le fait que les moyens d'étanchéité (12) sont disposés de manière à être soustrait à l'action directe de l'arc électrique en raison de la configuration de la paroi de guidage (10) et/ou des parties de paroi se trouvant derrière (11).
EP92115289A 1992-09-07 1992-09-07 Disjoncteur automatique, par exemple disjoncteur de protection de ligne Expired - Lifetime EP0586724B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT92115289T ATE123589T1 (de) 1992-09-07 1992-09-07 Selbstschalter, beispielsweise leistungsschutzschalter.
EP92115289A EP0586724B1 (fr) 1992-09-07 1992-09-07 Disjoncteur automatique, par exemple disjoncteur de protection de ligne
DE59202466T DE59202466D1 (de) 1992-09-07 1992-09-07 Selbstschalter, beispielsweise Leistungsschutzschalter.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92115289A EP0586724B1 (fr) 1992-09-07 1992-09-07 Disjoncteur automatique, par exemple disjoncteur de protection de ligne

Publications (2)

Publication Number Publication Date
EP0586724A1 EP0586724A1 (fr) 1994-03-16
EP0586724B1 true EP0586724B1 (fr) 1995-06-07

Family

ID=8209977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115289A Expired - Lifetime EP0586724B1 (fr) 1992-09-07 1992-09-07 Disjoncteur automatique, par exemple disjoncteur de protection de ligne

Country Status (3)

Country Link
EP (1) EP0586724B1 (fr)
AT (1) ATE123589T1 (fr)
DE (1) DE59202466D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113223890A (zh) * 2021-04-19 2021-08-06 山东泰开高压开关有限公司 一种高压开关断路器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311052A1 (de) * 1983-03-25 1984-09-27 Siemens AG, 1000 Berlin und 8000 München Selbstschalter, insbesondere leitungsschutzschalter
DE3531040C1 (de) * 1985-08-30 1987-06-04 Licentia Gmbh Loescheinrichtung fuer einen Allstrom-Leitungsschutzschalter
DE8611282U1 (de) * 1986-04-24 1986-06-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Löschkammer eines Leitungsschutzschalters

Also Published As

Publication number Publication date
DE59202466D1 (de) 1995-07-13
EP0586724A1 (fr) 1994-03-16
ATE123589T1 (de) 1995-06-15

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