GB1419891A - Electircal high voltage devices - Google Patents

Electircal high voltage devices

Info

Publication number
GB1419891A
GB1419891A GB1500573A GB1500573A GB1419891A GB 1419891 A GB1419891 A GB 1419891A GB 1500573 A GB1500573 A GB 1500573A GB 1500573 A GB1500573 A GB 1500573A GB 1419891 A GB1419891 A GB 1419891A
Authority
GB
United Kingdom
Prior art keywords
iron
holder
graphite electrode
high voltage
march
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
GB1500573A
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19722215883 external-priority patent/DE2215883C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1419891A publication Critical patent/GB1419891A/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7069—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by special dielectric or insulating properties or by special electric or magnetic field control properties
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7061—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by use of special mounting means

Landscapes

  • Circuit Breakers (AREA)
  • Contacts (AREA)

Abstract

1419891 Contact assembly SIEMENS AG 28 March 1973 [28 March 1972] 15005/73 Heading H1N An electric high voltage switch hollow contact unit comprises a graphite electrode 6 which is held frictionally in a metal holder 5, one such unit being screwed into each of the opposing ends of hollow conductors 1 in the switch by threads 3, 4, to define nozzles for the flow of are extinguishing sulphur hexafluoride gas. The metal of the holder 5 may be of iron, but is preferably chosen so that its coefficient of expansion matches closely that of the graphite electrode when it may be of iron with 36% nickel, or iron with 28% nickel and 18% cobalt. The outside diameter D of the graphite electrode is 1% to 5% larger than the internal diameter d of the holder 5 when they are separate at room temperature, so that it fits tightly when they are together.
GB1500573A 1972-03-28 1973-03-28 Electircal high voltage devices Expired GB1419891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722215883 DE2215883C3 (en) 1972-03-28 Contact system for electrical high-voltage devices with a gaseous insulating medium, in particular high-voltage circuit breakers

Publications (1)

Publication Number Publication Date
GB1419891A true GB1419891A (en) 1975-12-31

Family

ID=5840783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1500573A Expired GB1419891A (en) 1972-03-28 1973-03-28 Electircal high voltage devices

Country Status (7)

Country Link
US (1) US3801764A (en)
JP (1) JPS579166B2 (en)
CH (1) CH565440A5 (en)
FR (1) FR2177724B1 (en)
GB (1) GB1419891A (en)
IT (1) IT981648B (en)
SE (1) SE387005B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644200Y2 (en) * 1979-05-28 1989-02-03
US6116966A (en) * 1998-04-17 2000-09-12 Ati Industrial Automation, Inc. High power electrical contacts for robotic tool changer
US6031446A (en) * 1999-03-09 2000-02-29 Eaton Corporation Combination fuse clip and line terminal connection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1491851A (en) * 1965-09-10 1967-08-11 Siemens Ag Compressed gas circuit breaker
CH446480A (en) * 1966-11-03 1967-11-15 Bbc Brown Boveri & Cie Contact piece of an electrical switch secured against unintentional loosening and connected to a support part by means of a thread

Also Published As

Publication number Publication date
CH565440A5 (en) 1975-08-15
SE387005B (en) 1976-08-23
DE2215883A1 (en) 1973-10-11
FR2177724B1 (en) 1976-05-14
JPS579166B2 (en) 1982-02-19
DE2215883B2 (en) 1976-10-21
JPS497763A (en) 1974-01-23
US3801764A (en) 1974-04-02
FR2177724A1 (en) 1973-11-09
IT981648B (en) 1974-10-10

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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