BE756372A - VACUUM BREAKER OR SWITCH - Google Patents

VACUUM BREAKER OR SWITCH

Info

Publication number
BE756372A
BE756372A BE756372DA BE756372A BE 756372 A BE756372 A BE 756372A BE 756372D A BE756372D A BE 756372DA BE 756372 A BE756372 A BE 756372A
Authority
BE
Belgium
Prior art keywords
switch
vacuum breaker
breaker
vacuum
Prior art date
Application number
Other languages
French (fr)
Inventor
Mr J R Batchellor
Original Assignee
Tokyo Shibaura Electric 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 Tokyo Shibaura Electric Co filed Critical Tokyo Shibaura Electric Co
Publication of BE756372A publication Critical patent/BE756372A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0233—Composite material having a noble metal as the basic material and containing carbides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/027—Composite material containing carbon particles or fibres
BE756372D 1970-03-20 1970-09-18 VACUUM BREAKER OR SWITCH BE756372A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1349770 1970-03-20
US2339270A 1970-03-27 1970-03-27

Publications (1)

Publication Number Publication Date
BE756372A true BE756372A (en) 1971-03-01

Family

ID=26249812

Family Applications (1)

Application Number Title Priority Date Filing Date
BE756372D BE756372A (en) 1970-03-20 1970-09-18 VACUUM BREAKER OR SWITCH

Country Status (7)

Country Link
US (1) US3683138A (en)
BE (1) BE756372A (en)
CH (1) CH517370A (en)
DE (1) DE2045173C3 (en)
FR (1) FR2083792A5 (en)
GB (1) GB1257417A (en)
NL (1) NL7103703A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996437A (en) * 1973-12-03 1976-12-07 Cutler-Hammer, Inc. Vacuum contactor for motor control and method of making
US3997748A (en) * 1975-06-23 1976-12-14 General Electric Company Vacuum interrupter with primary electrode surrounded by high dielectric strength shield
GB2050060B (en) * 1979-05-22 1983-05-18 Tokyo Shibaura Electric Co Vacuum switches
JPS579019A (en) * 1980-06-18 1982-01-18 Hitachi Ltd Electrode for vacuum breaker
GB2143595A (en) * 1983-07-18 1985-02-13 Bearing Technology Limited Plastics bearing
US4686338A (en) * 1984-02-25 1987-08-11 Kabushiki Kaisha Meidensha Contact electrode material for vacuum interrupter and method of manufacturing the same
DE3428276A1 (en) * 1984-08-01 1986-02-06 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Material for electric contacts on the basis of silver with tungsten carbide, and process for the production thereof
US4940862A (en) * 1989-10-26 1990-07-10 Westinghouse Electric Corp. Vacuum interrupter with improved vapor shield for gas adsorption
JP2778826B2 (en) * 1990-11-28 1998-07-23 株式会社東芝 Contact material for vacuum valve
JPH09161628A (en) * 1995-12-13 1997-06-20 Shibafu Eng Kk Contact material for vacuum valve and manufacture thereof
JP3598195B2 (en) * 1997-03-07 2004-12-08 芝府エンジニアリング株式会社 Contact material
JP3773644B2 (en) * 1998-01-06 2006-05-10 芝府エンジニアリング株式会社 Contact material
TW200710905A (en) * 2005-07-07 2007-03-16 Hitachi Ltd Electrical contacts for vacuum circuit breakers and methods of manufacturing the same
US20100018843A1 (en) * 2008-07-24 2010-01-28 General Electric Company Low work function electrical component
US10468205B2 (en) * 2016-12-13 2019-11-05 Eaton Intelligent Power Limited Electrical contact alloy for vacuum contactors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL241567A (en) * 1958-07-24
US3014110A (en) * 1959-10-29 1961-12-19 Gen Electric Alternating current vacuum circuit interrupter
US3254189A (en) * 1961-05-15 1966-05-31 Westinghouse Electric Corp Electrical contact members having a plurality of refractory metal fibers embedded therein
GB1079013A (en) * 1964-04-21 1967-08-09 English Electric Co Ltd Improvements in or relating to contacts and electrodes

Also Published As

Publication number Publication date
FR2083792A5 (en) 1971-12-17
DE2045173C3 (en) 1980-02-14
GB1257417A (en) 1971-12-15
DE2045173A1 (en) 1971-10-07
CH517370A (en) 1971-12-31
US3683138A (en) 1972-08-08
DE2045173B2 (en) 1979-06-07
NL7103703A (en) 1971-09-22

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: TOKYO SHIBAURA ELECTRIC CY LTD

Effective date: 19900918