GB1388283A - Vacuum type electric circuit interrupting devices - Google Patents

Vacuum type electric circuit interrupting devices

Info

Publication number
GB1388283A
GB1388283A GB2346472A GB2346472A GB1388283A GB 1388283 A GB1388283 A GB 1388283A GB 2346472 A GB2346472 A GB 2346472A GB 2346472 A GB2346472 A GB 2346472A GB 1388283 A GB1388283 A GB 1388283A
Authority
GB
United Kingdom
Prior art keywords
metal
matrix
copper
infiltrated
vacuum
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
GB2346472A
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB2346472A priority Critical patent/GB1388283A/en
Priority to DE19732324317 priority patent/DE2324317C2/en
Priority to US00361063A priority patent/US3821505A/en
Publication of GB1388283A publication Critical patent/GB1388283A/en
Expired legal-status Critical Current

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

Landscapes

  • Contacts (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

1388283 Electrodes for vacuum switches or vacuum spark gaps ENGLISH ELECTRIC CO Ltd 15 May 1973 [18 May 1972] 23464/72 Addition to 1194674 Headings H1N and H1D The arc supporting electrodes of a vacuum switch or spark-gap as described in Specification 1,194,674 are formed from a matrix metal comprising chromium containing from 0À5% to 13À5% by weight carbon, or iron containing from 1% to 2 % by weight carbon, and an infiltrated metal which comprises copper or copper alloy. The infiltrated metal occupies between 10% and 40% of the volume of the infiltrated matrix and in the case where it is a copper alloy is preferably copper alloyed with silver, zirconium, tantalum or titanium. An alloy of 99À7% copper and 0À3% zirconium is particularly mentioned. The metal particles forming the matrix are of a size not exceeding 250 microns and where the metal of the matrix is chromium the carbon content is preferably from 1% to 3%.
GB2346472A 1972-05-18 1972-05-18 Vacuum type electric circuit interrupting devices Expired GB1388283A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2346472A GB1388283A (en) 1972-05-18 1972-05-18 Vacuum type electric circuit interrupting devices
DE19732324317 DE2324317C2 (en) 1972-05-18 1973-05-14 Electrode for a vacuum circuit breaker or a vacuum spark gap
US00361063A US3821505A (en) 1972-05-18 1973-05-17 Vacuum type electric circuit interrupting devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2346472A GB1388283A (en) 1972-05-18 1972-05-18 Vacuum type electric circuit interrupting devices

Publications (1)

Publication Number Publication Date
GB1388283A true GB1388283A (en) 1975-03-26

Family

ID=10196054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2346472A Expired GB1388283A (en) 1972-05-18 1972-05-18 Vacuum type electric circuit interrupting devices

Country Status (2)

Country Link
DE (1) DE2324317C2 (en)
GB (1) GB1388283A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042152A1 (en) * 1980-06-18 1981-12-23 Hitachi, Ltd. Vacuum circuit breaker
EP4276864A1 (en) * 2022-05-08 2023-11-15 Abb Schweiz Ag Vacuum interrupter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3347550A1 (en) * 1983-12-30 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Chromium and copper composite material, method of producing it and shaped contact points made of said material
DE19932867A1 (en) * 1999-07-14 2001-01-18 Abb Patent Gmbh Contact material for vacuum chambers used in heavy duty circuit breakers contains copper or silver and is doped with a dispersoid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521377C (en) * 1929-02-19 1931-03-20 Birka Regulator Ges M B H Switches whose contacts work under vacuum or in an inert gas
US2401221A (en) * 1943-06-24 1946-05-28 Gen Motors Corp Method of impregnating porous metal parts
DE1640038A1 (en) * 1966-05-27 1970-09-10 English Electric Co Ltd Vacuum switch contacts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042152A1 (en) * 1980-06-18 1981-12-23 Hitachi, Ltd. Vacuum circuit breaker
EP4276864A1 (en) * 2022-05-08 2023-11-15 Abb Schweiz Ag Vacuum interrupter

Also Published As

Publication number Publication date
DE2324317C2 (en) 1982-03-25
DE2324317A1 (en) 1973-11-29

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Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired