EP0382325A1 - Chambre d'extinction d'arc avec plaques d'extinction - Google Patents

Chambre d'extinction d'arc avec plaques d'extinction Download PDF

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Publication number
EP0382325A1
EP0382325A1 EP90250027A EP90250027A EP0382325A1 EP 0382325 A1 EP0382325 A1 EP 0382325A1 EP 90250027 A EP90250027 A EP 90250027A EP 90250027 A EP90250027 A EP 90250027A EP 0382325 A1 EP0382325 A1 EP 0382325A1
Authority
EP
European Patent Office
Prior art keywords
incisions
arc
quenching
plates
chamber 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.)
Granted
Application number
EP90250027A
Other languages
German (de)
English (en)
Other versions
EP0382325B1 (fr
Inventor
Michael Hahn
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 EP0382325A1 publication Critical patent/EP0382325A1/fr
Application granted granted Critical
Publication of EP0382325B1 publication Critical patent/EP0382325B1/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
    • H01H9/36—Metal parts

Definitions

  • An arc quenching chamber of this type has become known, for example, from DE-A-31 31 437.
  • quenching plates are used, each of which has an incision on its side facing the switching contacts and optionally one, two or more incisions on its side facing away from the switching contacts.
  • an incision can be arranged asymmetrically on the side facing away from the switching contacts in order to form a meandering channel through the twisted assembly of successive quenching plates.
  • An advantageous way of realizing the offset arrangement of the incisions can be that the incisions are arranged asymmetrically over the width of the quenching plates and successive quenching plates are mounted rotated relative to one another by 180 °.
  • quenching plates are used with incisions arranged symmetrically over the width
  • insulating plates with grooves can be provided for holding the quenching plates, which successively have a smaller and a greater depth corresponding to the desired offset of the incisions of successive quenching plates and that each have a groove of lesser depth Isolierstoffplatte a groove of greater depth is assigned to the opposite Isolierstoffplatte and vice versa.
  • This arrangement allows the extinguishing plates to be installed by simply plugging them in.
  • the incisions have the smallest possible radius of curvature at their tip. This should not exceed 1 mm. Such small and even less than 0.5 mm rounding radii can be achieved if the incisions be produced with the help of laser beam cutting.
  • the DC high-speed switch 1 shown in FIG. 1 has a fixed switching contact 2 and a movable switching contact 3 interacting with it in a known manner. Both switch contacts 2 and 3 protrude into an arc quenching chamber 4, which has arc guideways 5 and 6 and quenching plates 7.
  • a drive device 8 of a suitable type is also shown schematically in connection with the movable switching contact 3.
  • the arc quenching chamber 4 has a housing 10 of approximately rectangular cross-sectional shape. In a known manner, the housing 10 can be made in one piece from an insulating material or from several parts.
  • the quenching plates 7 can be arranged parallel to one another, as shown in FIG. 1, and, as is known per se, with their lower edges facing the switching contacts 2 and 3 can be arranged along an arc whose center is on the side of the extinguishing plates 7 facing the switching contacts 2 and 3. Deviating from this, the quenching plates can also be aligned radially or can be arranged with different angular positions between adjacent quenching plates.
  • the incisions are arranged asymmetrically such that there is an overlap of the incisions 15 and 15 'of about 1/3 of the mouth width designated W with the incisions 15. Due to this measure, two further incisions appear in the projection, which are denoted by 17 and 18. These reach about 1/3 or 2/3 of the depth of the incisions 15.
  • pins 20 are shown in the figure, with the aid of which the quenching plates 7 can be positioned and held in the walls of the housing 10 (FIG. 2) of the arc quenching chamber 4.
  • FIG. 4 A further example of an arc quenching chamber is shown in FIG. 4, specifically with a view of the edges of the quenching plates which face away from the switch contacts of a circuit breaker.
  • quenching plates 25 are used, the cuts of which are arranged symmetrically over the width of quenching plates 25.
  • the mutual offset of the incisions of successive quenching plates by a part of the mouth width of the incisions is achieved in that the quenching plates 25 are held between insulating plates 21 and 22, which are provided with grooves 23 and 24 of different depths.
  • extinguishing sheets made of a magnetizable material, for example a soft magnetic steel sheet, are used.
  • a magnetizable material for example a soft magnetic steel sheet
  • B. thickness of the sheets chemical and physical nature of the surface and composition of the material can also be used within the scope of the invention.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP90250027A 1989-02-08 1990-02-01 Chambre d'extinction d'arc avec plaques d'extinction Expired - Lifetime EP0382325B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3904268 1989-02-08
DE3904268 1989-02-08
DE3912726 1989-04-14
DE3912726A DE3912726A1 (de) 1989-02-08 1989-04-14 Lichtbogenloeschkammer mit loeschblechen

Publications (2)

Publication Number Publication Date
EP0382325A1 true EP0382325A1 (fr) 1990-08-16
EP0382325B1 EP0382325B1 (fr) 1994-01-12

Family

ID=25877743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250027A Expired - Lifetime EP0382325B1 (fr) 1989-02-08 1990-02-01 Chambre d'extinction d'arc avec plaques d'extinction

Country Status (2)

Country Link
EP (1) EP0382325B1 (fr)
DE (2) DE3912726A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898290A2 (fr) * 1997-08-16 1999-02-24 Moeller GmbH Supports pour tÔles d' extinction pour un dispositif d'extinction d'arc

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409495A1 (de) * 1994-03-19 1995-09-21 Sachsenwerk Ag Lichtbogenlöscheinrichtung mit Löschblechen
DE19854108C1 (de) * 1998-11-24 2000-07-13 Elbag Ag Vorrichtung zur Löschung eines Lichtbogens
DE102004022194B4 (de) * 2004-05-05 2013-01-03 Abb Ag Lichtbogenlöscheinrichtung für einen Leitungsschutzschalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926355B1 (de) * 1969-05-23 1970-11-12 Siemens Ag Lichtbogenl¦schkammer für Niederspannungsleistungsschalter
GB1383954A (en) * 1971-04-01 1974-02-12 Westinghouse Electric Corp Spaced-metallic-plate-type of arc-chute for a switch
DE2624957A1 (de) * 1976-05-07 1977-11-17 Bbc Brown Boveri & Cie Loeschplatte fuer elektrische schalter
DE3129161A1 (de) * 1981-07-23 1983-02-10 Siemens AG, 1000 Berlin und 8000 München "lichtbogen-loeschkammer
FR2569304A1 (fr) * 1984-08-15 1986-02-21 Mitsubishi Electric Corp Interrupteur de circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL156497C (fr) * 1949-10-29
DE1210472B (de) * 1962-11-22 1966-02-10 Licentia Gmbh Lichtbogenloeschkammer
DE3131437A1 (de) * 1981-08-07 1983-02-24 Siemens AG, 1000 Berlin und 8000 München "elektrischer schalter"

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926355B1 (de) * 1969-05-23 1970-11-12 Siemens Ag Lichtbogenl¦schkammer für Niederspannungsleistungsschalter
GB1383954A (en) * 1971-04-01 1974-02-12 Westinghouse Electric Corp Spaced-metallic-plate-type of arc-chute for a switch
DE2624957A1 (de) * 1976-05-07 1977-11-17 Bbc Brown Boveri & Cie Loeschplatte fuer elektrische schalter
DE3129161A1 (de) * 1981-07-23 1983-02-10 Siemens AG, 1000 Berlin und 8000 München "lichtbogen-loeschkammer
FR2569304A1 (fr) * 1984-08-15 1986-02-21 Mitsubishi Electric Corp Interrupteur de circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898290A2 (fr) * 1997-08-16 1999-02-24 Moeller GmbH Supports pour tÔles d' extinction pour un dispositif d'extinction d'arc
EP0898290A3 (fr) * 1997-08-16 1999-09-01 Moeller GmbH Supports pour tÔles d' extinction pour un dispositif d'extinction d'arc

Also Published As

Publication number Publication date
EP0382325B1 (fr) 1994-01-12
DE3912726A1 (de) 1990-08-09
DE59004164D1 (de) 1994-02-24

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