US1919438A - Plate for circuit breakers - Google Patents

Plate for circuit breakers Download PDF

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Publication number
US1919438A
US1919438A US387159A US38715929A US1919438A US 1919438 A US1919438 A US 1919438A US 387159 A US387159 A US 387159A US 38715929 A US38715929 A US 38715929A US 1919438 A US1919438 A US 1919438A
Authority
US
United States
Prior art keywords
plates
magnetic
arc
extinguishing
conducting material
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
US387159A
Other languages
English (en)
Inventor
Lindstrom Ture
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Priority to US387159A priority Critical patent/US1919438A/en
Priority to DE1930602543D priority patent/DE602543C/de
Application granted granted Critical
Publication of US1919438A publication Critical patent/US1919438A/en
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

  • My invention relates to circuit interrupters and particularly to arc-extinguishing means therefor.
  • One object of my invention is to form an arc-extinguishing device for a circuit interrupter that shall comprise a plurality of deionizing plates, portions of which are made of magnetic material.
  • jtypem that shall embody portions of magneticw'andwznon-magnetic materials assonciated in such jmanner that the :portions of magnetic material, are: ;more;. remote from the arcqpath.
  • Fig. 1 is a plan View of a contact memher and an arc-extinguishing device embodying my invention
  • Fig. 2 is a side View, in section, of the extinguishing device of Fig. 1, taken along the line 1III of that figure;
  • Fig. 3 is a plan view of an element of my arc-extinguishing structure shown in Fig. 1;
  • Fig. 1 is a side View of the arc-extinguishing element shown in Fig. 3.
  • My invention comprises, in general, a
  • a contact member 2 and an arc-extinguishing device 3 is mounted in fixed positionrrelative to each other.
  • a movable contact member 1 cooperates with the stationary contact member. 2 and the arc-extinguishing device 3 and is actuated to engage and be disengaged from the contact member 2 by an operating mechanism that is not shown in the drawing as it constitutes no part of the' present invention. Any operating device known in the art to be suitable may be employed.
  • the contact member 2 is provided with a contact stud 5 that extends through the base 1 and is the means for clamping the contact member 2 thereon through the medium of the nut 6.
  • a shunt and stud (not shown) are attached to the movable contact member 4. and the base 1, respectively, and are the means of completing a circuit through the contact members 2 and 4 and the stud 5.
  • the deionizing device 3 comprises a series of plates 7 that are mounted on the base 1 by-insulated bolts 8 and are spaced apart thereon 'apred'etermined distance by the washersl),
  • the plates, 7 comprise a U-shaped portion llthat is made of magnetic material and a portion 12 that is intimately. associated therewith.
  • the plate12 may be made of any material that is non-magnetic and is preferably constructed from a conducting material, such as copper. It is to. be understood, however,
  • that'non-conducting materials' may be emoxidizing characteristic when placed adjacent to the arc path to assist in the deionization of the arc.
  • any material other than that which is magnetic will be suitable to provide additional deionizing area over which the arc will be made to travel by the attracting properties of the surrounding magnetic plates. While the structure herein shown has a plate located only on one side of. the path of the are, it is to be understood that different forms and shapes of plates may be employed; for example, the plates may be made in the shape of washers, one within the other, so that the arc is entirely surrounded by the plates of non-magnetic and of magnetic material.
  • any means may be employed to retain the plates in unit relation with each other, the method of peening the two surfaces together, as shown by tool marks 13, has proved satisfactory. However, it is not necessary to have both plates associated in the same plane. Such a relation is shown herein as a preferred embodiment because of the edonomy in space when mounting such plates. It is to be understood that the plates may be lapped or otherwise positioned so long as the plates bear a lateral relation to 30 each other with respect to the arc path, as
  • a plurality of sheets of non-magnetic conducting material having open spaces therebetween, 5 and a plurality of sheets of magnetic material each having an end portion and a pair of leg portions, said sheets of magnetic material having open spaces therebetween and being positioned in planes substantially parallel to said sheets of non-magnetic material with said leg portions extending along the sides of said sheets of non-magnetic material for moving the arc thereinto.
  • a pluralitv of sheets of non-magnetic conducting ducting plates and splitting it up material having open spaces therebetween, and a plurality of sheets of magnetic mate- "rial each having an end portion and a pair of leg portions extending along opposite sides of said sheets of non-magnetic conducting material and magnetic means projecting beyond one edge of each of said sheets of non-magnetic conducting material for moving the arc against said edges for splitting up the are into a plurality of short arcs.
  • means for establishing an arc means for extinguishing the are positioned along the arc path, a plurality of plates of magnetic material positioned at spaced intervals along substantially the whole length of the arc path in planes transverse thereto, said plates of magnetic material having a portion of U-sha e surrounding said extinguishing means r distorting the magnetic field due to the arc current to move the are into said extinguishing means and open spaces continuous through both said extinguishing means and said magnetic plates.
  • means for establishing an arc means for extinguishing the are positioned along the arc path comprising a plurality of plates of non-magnetic conducting material having open spaces therebetween positioned in planes transverse to the arc path alon substantially its whole length, a plurality 0 plates of magnetic material positioned along substantially the whole length of the arc path, each of said 10 magnetic plates having an end portion and a pair of leg portions and being positioned co-p'lanar with one of said non-magnetic conducting plates with its leg portions extending along opposite sides thereof for 1 moving the are into said non-magnetic coninto a plurality of short arcs, and open spaces between said magnetic plates continuous with the open spaces between said non-magnetic con- 11o ducting plates to permit expansion of the arc gases transversely to the arc path between both of said sets of plates.
  • a plurality of plates of non-magnetic conduct- -in g material having open spaces therebetween, means for moving the are into sald non-magnetic conducting plates and splitting it up into short arcs movable on said non-magneticconducting plates, said means including a plurality of plates oi? magnetic conducting material each having an end portion and a pair of spaced projecting leg portions having an air gap between their outer ends, and each of said plates of non magnetic conducting material being positioned across the space between said poi tions conductivelg/ engaging one of s id plates of magnetic conducting and losing insulated from the other of said both of magnetic conducting material and of non-magnetic conducting material.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
US387159A 1929-08-20 1929-08-20 Plate for circuit breakers Expired - Lifetime US1919438A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US387159A US1919438A (en) 1929-08-20 1929-08-20 Plate for circuit breakers
DE1930602543D DE602543C (de) 1929-08-20 1930-08-14 Entionisierungseinrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US387159A US1919438A (en) 1929-08-20 1929-08-20 Plate for circuit breakers

Publications (1)

Publication Number Publication Date
US1919438A true US1919438A (en) 1933-07-25

Family

ID=23528724

Family Applications (1)

Application Number Title Priority Date Filing Date
US387159A Expired - Lifetime US1919438A (en) 1929-08-20 1929-08-20 Plate for circuit breakers

Country Status (2)

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US (1) US1919438A (de)
DE (1) DE602543C (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534069A (en) * 1947-04-09 1950-12-12 Arrow Hart & Hegeman Electric Arc extinguishing means for alternating current electric switches
US2654012A (en) * 1950-04-08 1953-09-29 Westinghouse Electric Corp Circuit interrupter
US3790911A (en) * 1971-09-30 1974-02-05 Maier & Cie C Electrical circuit-breaker
US3943473A (en) * 1974-04-29 1976-03-09 Square D Company Current limiting circuit breaker
US3956723A (en) * 1974-04-29 1976-05-11 Square D Company Current limiting circuit breaker
EP0299460A2 (de) * 1987-07-13 1989-01-18 Mitsubishi Denki Kabushiki Kaisha Lichtbogenlöschvorrichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE944566C (de) * 1951-02-08 1956-06-21 Starkstrom Schaltgeraetefabrik Lichtbogenloescheinrichtung
DE1006929B (de) * 1953-11-20 1957-04-25 August Stemmann O H G Fabrik E Funkenkammer, insbesondere fuer Nockenschalter
BE548341A (de) * 1955-06-03
DE1104019B (de) * 1959-09-11 1961-04-06 Continental Elektro Ind Ag Lichtbogenloeschkammer fuer elektrische Leistungsschalter
BE635433A (de) * 1962-07-27
DE1198898B (de) * 1962-10-02 1965-08-19 Weyer & Zander Kommanditgesell Schaltkammer in Schalenbauweise

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534069A (en) * 1947-04-09 1950-12-12 Arrow Hart & Hegeman Electric Arc extinguishing means for alternating current electric switches
US2654012A (en) * 1950-04-08 1953-09-29 Westinghouse Electric Corp Circuit interrupter
US3790911A (en) * 1971-09-30 1974-02-05 Maier & Cie C Electrical circuit-breaker
US3943473A (en) * 1974-04-29 1976-03-09 Square D Company Current limiting circuit breaker
US3956723A (en) * 1974-04-29 1976-05-11 Square D Company Current limiting circuit breaker
EP0299460A2 (de) * 1987-07-13 1989-01-18 Mitsubishi Denki Kabushiki Kaisha Lichtbogenlöschvorrichtung
US4866226A (en) * 1987-07-13 1989-09-12 Mitsubishi Denki Kabushiki Kaisha Multi-phase circuit breaker employing arc extinguishing apparatus
EP0299460A3 (en) * 1987-07-13 1990-10-10 Mitsubishi Denki Kabushiki Kaisha Multi-phase circuit breaker employing arc extinguishing apparatus

Also Published As

Publication number Publication date
DE602543C (de) 1934-09-11

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