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GB1309197A - Vacuum interrupter contacts - Google Patents

Vacuum interrupter contacts

Info

Publication number
GB1309197A
GB1309197A GB1309197DA GB1309197A GB 1309197 A GB1309197 A GB 1309197A GB 1309197D A GB1309197D A GB 1309197DA GB 1309197 A GB1309197 A GB 1309197A
Authority
GB
United Kingdom
Prior art keywords
bismuth
copper
weight
boron
contacts
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
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1309197A publication Critical patent/GB1309197A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • 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
    • 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
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • H01H33/6683—Means for obtaining or monitoring the vacuum by gettering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

1309197 Copper alloy switch contacts INTERNATIONAL STANDARD ELECTRIC CORP 28 Oct 1971 50080/71 Heading C7A [Also in Division H1] Contacts for an electric vacuum switch are made from rods of copper containing between 0À003% and 0À5% by weight of boron. In preparing these rods the appropriate amount of boron is added to relatively pure (99À95% by weight) molten copper. It may be desired to add a small quantity of bismuth (between 0À1% and 1% by weight), in order to prevent premature arc- quenching. This may be done by melting the boron containing copper in a vacuum and adding the bismuth or by adding the bismuth by furnace diffusion either to the contact surface only or to the whole length of the rod.
GB1309197D 1971-10-28 1971-10-28 Vacuum interrupter contacts Expired GB1309197A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5008071 1971-10-28

Publications (1)

Publication Number Publication Date
GB1309197A true GB1309197A (en) 1973-03-07

Family

ID=10454576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309197D Expired GB1309197A (en) 1971-10-28 1971-10-28 Vacuum interrupter contacts

Country Status (1)

Country Link
GB (1) GB1309197A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097906A1 (en) * 1982-06-25 1984-01-11 Kabushiki Kaisha Toshiba Contacts for vacuum switches
GB2123852A (en) * 1982-07-19 1984-02-08 Gen Electric Electrode contacts for high current circuit interruption
GB2161832A (en) * 1984-07-21 1986-01-22 Kabel Metallwerke Ghh Hollow electrical conductor
EP0255484A1 (en) * 1986-07-30 1988-02-03 Claude Planchamp Nuclear-radiation absorber
WO1990003657A1 (en) * 1988-09-22 1990-04-05 Siemens Aktiengesellschaft Vacuum switch tube, load-break switch containing said tube and process for operating said load-break switch
EP0530437A1 (en) * 1991-06-21 1993-03-10 Kabushiki Kaisha Toshiba Contact material for vacuum circuit breakers and method of manufacturing the same
GB2310760A (en) * 1996-02-27 1997-09-03 Gec Alsthom Ltd Vacuum switching device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097906A1 (en) * 1982-06-25 1984-01-11 Kabushiki Kaisha Toshiba Contacts for vacuum switches
GB2123852A (en) * 1982-07-19 1984-02-08 Gen Electric Electrode contacts for high current circuit interruption
GB2161832A (en) * 1984-07-21 1986-01-22 Kabel Metallwerke Ghh Hollow electrical conductor
EP0255484A1 (en) * 1986-07-30 1988-02-03 Claude Planchamp Nuclear-radiation absorber
WO1990003657A1 (en) * 1988-09-22 1990-04-05 Siemens Aktiengesellschaft Vacuum switch tube, load-break switch containing said tube and process for operating said load-break switch
US5168139A (en) * 1988-09-22 1992-12-01 Siemens Aktiengesellschaft Load-break switch having a vacuum interrupter and method of operation
EP0530437A1 (en) * 1991-06-21 1993-03-10 Kabushiki Kaisha Toshiba Contact material for vacuum circuit breakers and method of manufacturing the same
US5354352A (en) * 1991-06-21 1994-10-11 Kabushiki Kaisha Toshiba Contact material for vacuum circuit breakers
GB2310760A (en) * 1996-02-27 1997-09-03 Gec Alsthom Ltd Vacuum switching device

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee