EP0273503A1 - Lichtbogenkammer, insbesondere für Niederspannungsschalter - Google Patents

Lichtbogenkammer, insbesondere für Niederspannungsschalter Download PDF

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Publication number
EP0273503A1
EP0273503A1 EP87202426A EP87202426A EP0273503A1 EP 0273503 A1 EP0273503 A1 EP 0273503A1 EP 87202426 A EP87202426 A EP 87202426A EP 87202426 A EP87202426 A EP 87202426A EP 0273503 A1 EP0273503 A1 EP 0273503A1
Authority
EP
European Patent Office
Prior art keywords
arc chamber
blades
organic
chamber according
metal
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Withdrawn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
EP87202426A
Other languages
English (en)
French (fr)
Inventor
Francesco Perdoncin
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.)
ABB SACE SpA
Original Assignee
SACE SpA
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 SACE SpA filed Critical SACE SpA
Publication of EP0273503A1 publication Critical patent/EP0273503A1/de
Withdrawn legal-status Critical Current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
    • 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
    • H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts

Definitions

  • the object of the present invention is an arc chamber, in particular for low-voltage circuit breakers.
  • Arc chambers are known, for low-voltage circuit breakers, which are constituted by two shaped blades made of an electrically conductive material, placed side-by-­side to each other in a parallel or sub-parallel arrangement, joined with each other by means of a non-­conductive material.
  • Such arc chambers suffer from the drawback of a not enough rapid dielectric restoration, in particular if large short-circuit currents have to be interrupted.
  • the purpose of the present invention is to obviate the disadvantages of the above cited prior art.
  • an arc chamber which is constituted by shaped blades made of a metal material, which are positioned side-by-­side to, in a sub-parallel arrangement, and are joined with, one another, by means of side plates of a non-­conductive material, characterized in that at least one of said metal blades is in contact with an element made of an organic-based material, capable of releasing a gas when it is struck by the electric arc.
  • said element made of an organic-based material capable of releasing gases is constituted by at least a blade essentially having the same shape as of one of said shaped metal blades.
  • At least said one blade is placed in contact with, and parallelly to, said shaped metal blade, thus resulting inserted between two blades made of a metal material.
  • an arc chamber according to the present invention is shown, which is constituted by blades made of a metal material 11 fastened on side plates 12 made of an insulating material.
  • a metal blade 11 is shown, which is in contact with a blade 13 made of an organic-based material, essentially having the same profile as of the metal blade 11.
  • the blade 13, inserted inside the arc chamber 10, is capable of releasing gases, when, during the interruption process, it is struck by the electrical arc, it being constituted by such materials as, e.g., teflon, and other synthetic materials.
  • the gases released by the contact of the arc with the blade 13 are generally, but not necessarily, hydrogen or fluorine, which favour the dielectric restoration, generally improving the interrupting characteristics of the circuit breaker in which arc chambers of this type are inserted.
  • FIG. 2 an example of arrangement of two blades 13 in contact with one metal blade 11 is shown, wherein said blades 13 are positioned in such a way that the metal blade 11 is positioned between the two blades 13 made of an organic-­based material.
  • the blades 13 and 14 contribute to such restoration by releasing positive ions which are characterized by a high mobility (e.g., protons), or releasing highly electronegative ions.
  • protons can be produced from organic-based and cellulose-based materials, which contain hydrogen in their chains, which is released at such high temperatures as developed by the arc.
  • electronegative ions can be produced from such materials as teflon, which releases fluorine.
  • an element of an organic-based material can be installed in contact with the metal blades 11 also in positions different from those shown in Figures from 1 to 4, e.g., in a position perpendicular to the metal blades.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP87202426A 1986-12-11 1987-12-07 Lichtbogenkammer, insbesondere für Niederspannungsschalter Withdrawn EP0273503A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2399186U IT208624Z2 (it) 1986-12-11 1986-12-11 Camera d'arco, in particolare per interruttori di bassa tensione.!
IT2399186U 1986-12-11

Publications (1)

Publication Number Publication Date
EP0273503A1 true EP0273503A1 (de) 1988-07-06

Family

ID=11211359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87202426A Withdrawn EP0273503A1 (de) 1986-12-11 1987-12-07 Lichtbogenkammer, insbesondere für Niederspannungsschalter

Country Status (4)

Country Link
EP (1) EP0273503A1 (de)
JP (1) JPS63205015A (de)
DE (1) DE8716301U1 (de)
IT (1) IT208624Z2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000046828A1 (de) * 1999-02-01 2000-08-10 Moeller Gmbh Selbsterholende strombegrenzungseinrichtung mit flüssigmetall
US6573815B1 (en) * 1999-12-02 2003-06-03 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
CN103065896A (zh) * 2012-12-18 2013-04-24 天津市百利电气有限公司 低压智能型万能式断路器的灭弧装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681933A5 (en) * 1991-03-14 1993-06-15 Secheron Sa Electrical switch with arc-quenching system - has plate of magnetic material with coupled plate of insulation having cut-away section near to arcing point
IT1264164B1 (it) * 1993-04-21 1996-09-17 Sace Spa Interruttore di bassa tensione in scatola isolante
DE4315485A1 (de) * 1993-05-10 1994-11-17 Abb Patent Gmbh Elektrischer Schalter
FR2775827B1 (fr) * 1998-03-04 2000-04-14 Lenoir Elec Contacteur electrique comportant une cage de soufflage amelioree
JP4753263B2 (ja) * 2008-10-10 2011-08-24 三菱電機株式会社 回路遮断器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1040798A (fr) * 1950-05-18 1953-10-19 Westinghouse Electric Corp Interrupteurs de circuit
DE1707783U (de) * 1955-07-15 1955-09-29 Voigt & Haeffner Ag Blasspulenfreier installationsselbstschalter mit magnetischer und thermischer ueberstromausloesung.
FR2227618A1 (en) * 1973-04-24 1974-11-22 Bbc Brown Boveri & Cie Electrical circuit-breaker with gas-generating PTFE - in switch chambers, with porous structure for escape of gases
FR2232058A1 (de) * 1973-05-29 1974-12-27 Square D Co
DE3247681A1 (de) * 1982-12-23 1984-06-28 Brown, Boveri & Cie Ag, 6800 Mannheim Lichtbogenloeschkammer
FR2584230A1 (fr) * 1985-06-28 1987-01-02 Merlin Gerin Chambre d'extinction d'arc pour disjoncteur a basse tension a coupure dans l'air

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106324A (en) * 1980-01-24 1981-08-24 Mitsubishi Electric Corp Breaker
JPS56103838A (en) * 1980-01-24 1981-08-19 Mitsubishi Electric Corp Breaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1040798A (fr) * 1950-05-18 1953-10-19 Westinghouse Electric Corp Interrupteurs de circuit
DE1707783U (de) * 1955-07-15 1955-09-29 Voigt & Haeffner Ag Blasspulenfreier installationsselbstschalter mit magnetischer und thermischer ueberstromausloesung.
FR2227618A1 (en) * 1973-04-24 1974-11-22 Bbc Brown Boveri & Cie Electrical circuit-breaker with gas-generating PTFE - in switch chambers, with porous structure for escape of gases
FR2232058A1 (de) * 1973-05-29 1974-12-27 Square D Co
DE3247681A1 (de) * 1982-12-23 1984-06-28 Brown, Boveri & Cie Ag, 6800 Mannheim Lichtbogenloeschkammer
FR2584230A1 (fr) * 1985-06-28 1987-01-02 Merlin Gerin Chambre d'extinction d'arc pour disjoncteur a basse tension a coupure dans l'air

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000046828A1 (de) * 1999-02-01 2000-08-10 Moeller Gmbh Selbsterholende strombegrenzungseinrichtung mit flüssigmetall
US6573815B1 (en) * 1999-12-02 2003-06-03 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
CN103065896A (zh) * 2012-12-18 2013-04-24 天津市百利电气有限公司 低压智能型万能式断路器的灭弧装置

Also Published As

Publication number Publication date
JPS63205015A (ja) 1988-08-24
DE8716301U1 (de) 1988-03-31
IT8623991V0 (it) 1986-12-11
IT208624Z2 (it) 1988-05-28

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Effective date: 19890520