GB766655A - Improvements in arc-extinguishing means for electric circuit-breakers - Google Patents

Improvements in arc-extinguishing means for electric circuit-breakers

Info

Publication number
GB766655A
GB766655A GB35321/53A GB3532153A GB766655A GB 766655 A GB766655 A GB 766655A GB 35321/53 A GB35321/53 A GB 35321/53A GB 3532153 A GB3532153 A GB 3532153A GB 766655 A GB766655 A GB 766655A
Authority
GB
United Kingdom
Prior art keywords
arc
blade
cheeks
chamber
coil
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
Application number
GB35321/53A
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of GB766655A publication Critical patent/GB766655A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/123—Load break switches in which the auxiliary contact pivots on the main contact-arm and performs a delayed and accelerated movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • 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

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

766,655. Arc-rupturing in switches. ETABLISSEMENTS MERLIN & GERIN SOC. ANON. Dec. 18, 1953 [Dec. 22, 1952; Feb. 13, 1953], No. 35321/53. Class 38(5) In a circuit-breaker comprising a switch blade 9 with an auxiliary blade 10 pivoted thereto, the blade 10 moves in an arcextinguishing chamber 13 detachably secured to the breaker. The chamber comprises a pair of spaced, insulating plates 14, Fig. 3, between which are ceramic plates 15. A comb-shaped element 16 having teeth of different lengths is located between plates 15, the inner ends of the teeth projecting above the edges of the plates to form spaces 17 for the escape of arc gases. Blow-out coils 18, 19 wound for extinguishing light and heavy current arcs respectively and connected to auxiliary electrodes 25, 24 are provided in the chamber. On opening of the breaker, the blade 10 leaves an auxiliary contact 22 after blade 9 has left the main contact 8, and as blade 10 passes electrode 24 one root. of the arc passes to it from contact 22 and connects coil 19 in series with the arc. The blade then passes electrode 25 whilst the arc is blown towards comb 16 by coil 19. When the blade reaches a further auxiliary contact 23 the arc, if still in existence, passes to electrode 25 and coil 18 is connected in series with the arc and coil 19, the combined effect of the coils then blowing the arc against comb 16. Blow-out cheeks 20, 21 are provided externally of the chamber and are preferably sheathed with insulating material. Fig. 7 shows a modification of the chamber wherein the blow-out cheeks are divided into sections 20a, 20b, 21a, 21b to distribute the potential gradient between the cheeks. Counter-cheeks 30 ... 32 are provided and all the cheeks are sheathed in insulation.
GB35321/53A 1952-12-22 1953-12-18 Improvements in arc-extinguishing means for electric circuit-breakers Expired GB766655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE516461X 1952-12-22

Publications (1)

Publication Number Publication Date
GB766655A true GB766655A (en) 1957-01-23

Family

ID=3880073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35321/53A Expired GB766655A (en) 1952-12-22 1953-12-18 Improvements in arc-extinguishing means for electric circuit-breakers

Country Status (5)

Country Link
US (1) US2761933A (en)
BE (2) BE516461A (en)
DE (1) DE1081540B (en)
FR (1) FR1093056A (en)
GB (1) GB766655A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916588A (en) * 1958-04-29 1959-12-08 Ite Circuit Breaker Ltd Multiple break air magnetic breaker
DE1260613B (en) * 1960-04-14 1968-02-08 Liebknecht Transformat Diverter switch for step transformers
US3133175A (en) * 1960-10-05 1964-05-12 Cutler Hammer Inc Shockproof electromagnetic contactor having arc chute and blowout assembly and pivoted contact carriage means
US3268699A (en) * 1965-04-23 1966-08-23 Ite Circuit Breaker Ltd Magnetic type circuit breaker having air gap in face of face wound core structure for producing non-uniform magnetic field
CN107833785B (en) * 2017-11-30 2020-04-03 浙江紫光电器有限公司 Vacuum isolation load switch

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590970A (en) * 1945-04-26 1947-08-01 Reyrolle A & Co Ltd Improvements in or relating to electric air-break circuit-breakers
DE256517C (en) * 1910-09-15
DE408129C (en) * 1920-03-11 1925-01-10 Aeg Spark extinguishing device for electric circuit breakers
GB219483A (en) * 1923-07-17 1924-07-31 Alfred Henry Jacks Improvements in or relating to electric switches for use in electric meters and for other purposes
DE401970C (en) * 1924-01-31 1924-09-16 Siemens Schuckertwerke G M B H Overcurrent switch
US1623851A (en) * 1926-07-23 1927-04-05 Gen Electric Circuit interrupter
NL28429C (en) * 1927-04-06
US1914143A (en) * 1928-02-01 1933-06-13 Westinghouse Electric & Mfg Co Circuit interrupter
DE540927C (en) * 1928-07-14 1932-01-07 Siemens Schuckertwerke Akt Ges Switch to interrupt currents of very different current strengths with magnetic series blowing
US1933175A (en) * 1931-02-27 1933-10-31 Condit Electrical Mfg Company Electric switch having magnetic arc extinguishing means
DE728612C (en) * 1934-10-20 1942-11-30 Siemens Ag Arc Chamber Switch
BE430770A (en) * 1934-10-20
DE672502C (en) * 1936-12-09 1939-03-03 Voigt & Haeffner Akt Ges Arrangement for attaching electrical apparatus, instruments or the like to control panels
US2243038A (en) * 1938-07-01 1941-05-20 Westinghouse Electric & Mfg Co Circuit interrupter
DE702431C (en) * 1939-03-19 1941-02-07 Aeg Device for extinguishing arcs on electrical switches
BE483190A (en) * 1939-03-22
US2293487A (en) * 1939-10-11 1942-08-18 Gen Electric Electric circuit breaker
US2308026A (en) * 1940-02-20 1943-01-12 Westinghouse Electric & Mfg Co Load break disconnect
DE710229C (en) * 1940-04-20 1941-09-08 Aeg Arc extinguishing device for switch
US2349681A (en) * 1941-05-24 1944-05-23 Westinghouse Electric & Mfg Co Circuit interrupter
US2381637A (en) * 1942-04-09 1945-08-07 Ite Circuit Breaker Ltd Arc quencher
US2337949A (en) * 1942-05-29 1943-12-28 Gen Electric Circuit breaker
US2393164A (en) * 1943-02-27 1946-01-15 Gen Electric Electric circuit breaker
US2428254A (en) * 1944-03-21 1947-09-30 Gen Electric Circuit breaker
BE482710A (en) * 1944-04-13
US2446859A (en) * 1944-10-14 1948-08-10 Gen Electric Switch
US2571864A (en) * 1947-08-21 1951-10-16 Westinghouse Electric Corp Arc extinguishing circuit interrupter

Also Published As

Publication number Publication date
US2761933A (en) 1956-09-04
BE516461A (en)
DE1081540B (en) 1960-05-12
BE517653A (en)
FR1093056A (en) 1955-04-29

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