GB839252A - Improvements relating to high-vacuum electric circuit-breakers - Google Patents

Improvements relating to high-vacuum electric circuit-breakers

Info

Publication number
GB839252A
GB839252A GB12544/56A GB1254456A GB839252A GB 839252 A GB839252 A GB 839252A GB 12544/56 A GB12544/56 A GB 12544/56A GB 1254456 A GB1254456 A GB 1254456A GB 839252 A GB839252 A GB 839252A
Authority
GB
United Kingdom
Prior art keywords
electrodes
auxiliary
main
pairs
pair
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
GB12544/56A
Inventor
Michael Peter Reece
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.)
Electr & Allied Ind Res Ass
Original Assignee
Electr & Allied Ind Res Ass
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 Electr & Allied Ind Res Ass filed Critical Electr & Allied Ind Res Ass
Publication of GB839252A publication Critical patent/GB839252A/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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6646—Contacts; Arc-extinguishing means, e.g. arcing rings having non flat disc-like contact surface
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

839,252. Vacuum switches. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. April 16, 1957 [April 14, 1956], No. 12544/56. Class 38 (5). A high vacuum A.C. circuit-breaker has a " main " pair of co-operating electrodes 1a, 1b and two or more " auxiliary " pairs of cooperating electrodes 2a, 2b, the auxiliary pairs being of lower arcing voltage than the main pair and connected in parallel with the main pair, the arrangement being such that when the circuit-breaker is opened, the auxiliary electrodes open first so that bridges of electrode metal first form and then explode between these co-operating electrodes, the main electrodes then separate and the arc at the main electrodes or an arc at any one of the auxiliary pairs causes the formation of arcs at all the auxiliary pairs. In the arrangement shown, eight upper auxiliary copper electrodes 2a co-operate with six lower auxiliary copper electrodes 2b, the fourteen electrodes cooperating at twelve places to produce, in effect, twelve auxiliary pairs. The upper electrodes 2a are screwed into a fixed conducting hanger 15 and the lower electrodes 2b are mounted on a conducting disc 8 secured to a movable copper stem 3 carrying the lower main tungsten electrode 1b. The upper main tungsten electrode 1a is also carried by a movable copper stem 16 so that when the stem 3 is moved downwardly to open the circuit-breaker, the stem 16 moves downwardly under the force of a spring 20 until it is arrested by a collar (not shown) engaging a fixed stop 31, so that the main electrodes 1a, 1b remain in engagement until after the downward movement of the disc 8 has caused the separation of the auxiliary electrodes. Coaxial cylindrical shields 35, 36 adsorb energy emitted on arcing to reduce the risk of re-ignition over long paths, the inner shield 35 having openings 38 to allow the passage of energy from the arc at the main pair to the contact surfaces of the auxiliary pairs to start arcs there, if these do not already exist. In a modification, Figs. 3 and 4 (not shown), the auxiliary electrodes are arranged as separate pairs, each pair being surrounded by a shield. The Provisional Specification states that the auxiliary electrodes may be fixed so as to provide a number of fixed arc gaps and also refers to the use of other contact materials.
GB12544/56A 1956-04-24 1956-04-24 Improvements relating to high-vacuum electric circuit-breakers Expired GB839252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB341874X 1956-04-24

Publications (1)

Publication Number Publication Date
GB839252A true GB839252A (en) 1960-06-29

Family

ID=10362461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12544/56A Expired GB839252A (en) 1956-04-24 1956-04-24 Improvements relating to high-vacuum electric circuit-breakers

Country Status (7)

Country Link
US (1) US2897322A (en)
BE (1) BE556896A (en)
CH (1) CH341874A (en)
DE (1) DE1074119B (en)
FR (1) FR1173618A (en)
GB (1) GB839252A (en)
NL (1) NL216587A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997748A (en) * 1975-06-23 1976-12-14 General Electric Company Vacuum interrupter with primary electrode surrounded by high dielectric strength shield
FR2312099A1 (en) * 1975-05-19 1976-12-17 Gen Electric VACUUM CUT-OFF SWITCH WITH TWO SETS OF ELECTRICALLY PARALLEL CONTACTS
US4128748A (en) * 1976-07-21 1978-12-05 General Electric Company High-current vacuum switch with reduced contact erosion

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981813A (en) * 1958-07-21 1961-04-25 Jennings Radio Mfg Corp Vacuum switch
US2979588A (en) * 1958-12-09 1961-04-11 Jennings Radio Mfg Corp Vacuum switch
US2980782A (en) * 1959-03-26 1961-04-18 Gen Electric Vacuum type circuit interrupter
US3123698A (en) * 1961-02-10 1964-03-03 Circuit breakers having interrupting contacts
US3129308A (en) * 1961-04-22 1964-04-14 Nippon Electric Co Vacuum circuit breaker having buffering means in relatively stationary electrode structure
US3163734A (en) * 1962-01-26 1964-12-29 Gen Electric Vacuum-type circuit interrupter with improved vapor-condensing shielding
US3178542A (en) * 1962-03-26 1965-04-13 Jennings Radio Mfg Corp Vacuum switch and internal shielding therefor
GB997126A (en) * 1963-04-01 1965-06-30 Ass Elect Ind Improvements in and relating to power switchgear
DE1237200B (en) * 1963-05-15 1967-03-23 Ass Elect Ind Vacuum switch
DE1228697B (en) * 1964-07-13 1966-11-17 English Electric Co Ltd Gas pressure switch
US3321598A (en) * 1964-11-16 1967-05-23 Gen Electric Vacuum-type circuit interrupter with arc-voltage limiting means
US3469048A (en) * 1966-07-01 1969-09-23 Gen Electric Vacuum-type circuit breaker having parallel triggered-type circuit interrupters
US3814880A (en) * 1972-06-20 1974-06-04 Westinghouse Electric Corp Vacuum interrupter contacts having energy dissipation surfaces
US3778573A (en) * 1972-06-23 1973-12-11 Westinghouse Electric Corp Vacuum circuit interrupter having improved contact structure
US3786214A (en) * 1973-01-19 1974-01-15 Gen Electric Interleaving-rod type vacuum interrupter having two breaks in series between each pair of rods
US3969598A (en) * 1975-02-03 1976-07-13 General Electric Company Vacuum-type circuit interrupter with a plurality of sets of contacts in parallel
US3970809A (en) * 1975-02-10 1976-07-20 General Electric Company Electric circuit breaker comprising parallel-connected vacuum interrupters
US3970810A (en) * 1975-03-06 1976-07-20 General Electric Company Electric circuit breaker comprising parallel-connected vacuum interrupters
US4061894A (en) * 1976-04-28 1977-12-06 General Electric Company Vacuum-type circuit interrupter with improved protection for bellows
DE2932407C2 (en) * 1979-08-09 1982-05-27 Siemens AG, 1000 Berlin und 8000 München Low voltage contactor with three-phase contact set
JPS58181218A (en) * 1982-04-19 1983-10-22 株式会社日立製作所 Composite vacuum breaker
EP2747113B1 (en) * 2012-12-20 2015-10-21 ABB Technology AG Circuit-breaker pole part with a flexible conductor for connecting a movable electrical contact
CN112103127A (en) * 2020-08-11 2020-12-18 平高集团有限公司 Vacuum arc extinguish chamber

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539812C (en) * 1926-11-15 1931-12-02 California Inst Of Techn Procedure for degassing the contacts of high-voltage vacuum switches
DE532771C (en) * 1927-07-01 1931-09-02 Birka Regulator G M B H Switches with pin contacts that work in an evacuated or filled with inert gases, vacuum-tight sealed vessel
GB293018A (en) * 1927-07-01 1929-08-29 Arthur Scherbius Improvements in and relating to electric switches
US1784303A (en) * 1928-09-05 1930-12-09 California Inst Of Techn Alternating-power-current interrupter
DE561915C (en) * 1928-12-20 1932-10-20 Aeg Vacuum switch
DE607651C (en) * 1928-12-20 1935-01-04 Aeg Vacuum switch for alternating current with interruption of the current if possible at its current passage through zero
GB330946A (en) * 1929-03-26 1930-06-26 Reyrolle A & Co Ltd Improvements in or relating to electric circuit-breakers
DE596966C (en) * 1930-05-28 1934-05-14 Aeg Device for vacuum switch for degassing the contacts
GB400716A (en) * 1932-06-17 1933-11-02 Gen Electric Co Ltd Improvements in or relating to withdrawable electric switchgear
US2180661A (en) * 1938-05-11 1939-11-21 Nortron Patents Corp Vacuum switch
US2794885A (en) * 1954-12-13 1957-06-04 Jennings Radio Mfg Corp Vacuum switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312099A1 (en) * 1975-05-19 1976-12-17 Gen Electric VACUUM CUT-OFF SWITCH WITH TWO SETS OF ELECTRICALLY PARALLEL CONTACTS
US3997748A (en) * 1975-06-23 1976-12-14 General Electric Company Vacuum interrupter with primary electrode surrounded by high dielectric strength shield
US4128748A (en) * 1976-07-21 1978-12-05 General Electric Company High-current vacuum switch with reduced contact erosion

Also Published As

Publication number Publication date
CH341874A (en) 1959-10-31
NL216587A (en)
FR1173618A (en) 1959-02-27
BE556896A (en)
US2897322A (en) 1959-07-28
DE1074119B (en) 1960-01-28

Similar Documents

Publication Publication Date Title
GB839252A (en) Improvements relating to high-vacuum electric circuit-breakers
GB787846A (en) Improvements relating to high-vacuum electric circuit-breakers
GB1151572A (en) Improvements in or relating to Circuit Breaker Apparatus
GB513619A (en) Improvements in and relating to liquid-blast electric circuit breakers
GB1164686A (en) Vacuum-Type Circuit Breaker
GB1025944A (en) Improvements in or relating to vacuum type circuit interrupter
GB1110297A (en) Improvements in vacuum type circuit interrupter
GB720021A (en) Improvements in and relating to electric circuit breakers
GB758266A (en) A high-voltage gas-blast electric circuit breaker
GB1091643A (en) High voltage switch construction
GB816309A (en) Air blast electric circuit breaker for high voltages
GB889621A (en) A load-break disconnecting switch
GB864835A (en) Improvements relating to high voltage multi-break airblast electric circuit-breakers
GB673312A (en) Improvements in air-blast electric circuit-breakers with switching resistances
GB1162309A (en) Vacuum-Type Circuit Interrupter with Hollow Contacts
GB759797A (en) Electric liquid-blast circuit breaker with electrode disposed between an interrupting device and a contact opening
GB930101A (en) Improvements in or relating to air-break circuit-breakers
GB587491A (en) Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type
GB712785A (en) Electric gas-blast circuit breakers
GB635799A (en) Improvements in electric circuit interrupting devices comprising compressed gas interrupter in series with a disconnect switch
GB754539A (en) A gas-blast electric circuit breaker
GB840610A (en) Improved electric circuit breaker having arc-extinguishing means
GB848184A (en) Improvements in or relating to electric circuit interrupters
GB548103A (en) Improvements in gas blast electric circuit breakers
GB1383180A (en) Gas blast circuit-breakers having cooperating tubular contact members