GB1343785A - Vacuum circuit breakers - Google Patents

Vacuum circuit breakers

Info

Publication number
GB1343785A
GB1343785A GB228171A GB1343785DA GB1343785A GB 1343785 A GB1343785 A GB 1343785A GB 228171 A GB228171 A GB 228171A GB 1343785D A GB1343785D A GB 1343785DA GB 1343785 A GB1343785 A GB 1343785A
Authority
GB
United Kingdom
Prior art keywords
circuit breakers
vacuum circuit
vacuum
breakers
circuit
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
GB228171A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1343785A publication Critical patent/GB1343785A/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
    • 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
    • H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves
    • 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
    • H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact
GB228171A 1971-01-11 1971-01-18 Vacuum circuit breakers Expired GB1343785A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10522071A 1971-01-11 1971-01-11
GB228171 1971-01-18

Publications (1)

Publication Number Publication Date
GB1343785A true GB1343785A (en) 1974-01-16

Family

ID=26237418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB228171A Expired GB1343785A (en) 1971-01-11 1971-01-18 Vacuum circuit breakers

Country Status (2)

Country Link
US (1) US3764764A (en)
GB (1) GB1343785A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303659A1 (en) * 1983-02-03 1984-08-16 Vsesojuznyj elektrotechničeskij institut imeni V.I. Lenina, Moskva Contact system for a vacuum arc extinguishing chamber
DE3435637A1 (en) * 1984-09-28 1986-04-10 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Contact arrangement for vacuum switches

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547945B2 (en) * 1973-06-30 1979-04-11
SE392781B (en) * 1973-09-10 1977-04-18 Tokyo Shibaura Electric Co VACUUM SWITCH
JPS52150571A (en) * 1976-06-09 1977-12-14 Hitachi Ltd Vacuum breaker electrode
US4260864A (en) * 1978-11-30 1981-04-07 Westinghouse Electric Corp. Vacuum-type circuit interrupter with an improved contact with axial magnetic field coil
DE3206823A1 (en) * 1982-02-23 1983-09-01 Siemens AG, 1000 Berlin und 8000 München VACUUM SWITCH TUBES WITH A RING FOR THE FIELD DEVELOPMENT
DE3227594C2 (en) * 1982-07-22 1985-02-28 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vacuum switch contact arrangement with device for generating an axial magnetic field
GB8321368D0 (en) * 1983-08-09 1983-09-07 Vacuum Interrupters Ltd High current switch contacts
US4553002A (en) * 1983-12-05 1985-11-12 Westinghouse Electric Corp. Axial magnetic field vacuum-type circuit interrupter
JPH0731966B2 (en) * 1985-07-12 1995-04-10 株式会社日立製作所 Vacuum and breaker
DE3718108A1 (en) * 1987-05-27 1988-12-08 Slamecka Ernst Vacuum switch
EP0782760B1 (en) * 1994-09-22 1998-03-25 Ernst Slamecka Vacuum switch contact arrangement
JP4667032B2 (en) * 2004-12-10 2011-04-06 三菱電機株式会社 Vacuum valve
JP5097934B2 (en) * 2008-04-02 2012-12-12 明電Ｔ＆Ｄ株式会社 Large capacity vacuum circuit breaker
FR2950729B1 (en) * 2009-09-29 2016-08-19 Areva T&D Sas WINDING FOR CONTACT OF MEDIUM-VOLTAGE VACUUM BULB WITH IMPROVED ARC CUTOUT, VACUUM BULB AND CIRCUIT BREAKER, SUCH AS AN ALTERNATOR DISCONNECT CIRCUIT BREAKER
KR20120090698A (en) * 2011-02-08 2012-08-17 엘에스산전 주식회사 Vacuum interrupter for vacuum circuit breaker
US9378908B2 (en) * 2013-09-04 2016-06-28 Eaton Corporation Vacuum switching apparatus and contact assembly therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089936A (en) * 1960-02-23 1963-05-14 Gen Electric Contact structure for an electric circuit interrupter
US3008022A (en) * 1960-06-15 1961-11-07 Gen Electric Contact structure for a vacuum-type circuit interrupter
US3280286A (en) * 1964-07-03 1966-10-18 Mc Graw Edison Co Vacuum-type circuit interrupter
FR1511781A (en) * 1966-02-09 1968-02-02 Ass Elect Ind Improvements to electrical vacuum switches
GB1113837A (en) * 1966-04-25 1968-05-15 Ass Elect Ind Improvements relating to vacuum switch contacts
US3546407A (en) * 1967-08-15 1970-12-08 Gen Electric Vacuum-type circuit interrupter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303659A1 (en) * 1983-02-03 1984-08-16 Vsesojuznyj elektrotechničeskij institut imeni V.I. Lenina, Moskva Contact system for a vacuum arc extinguishing chamber
DE3435637A1 (en) * 1984-09-28 1986-04-10 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Contact arrangement for vacuum switches

Also Published As

Publication number Publication date
US3764764A (en) 1973-10-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee