GB1246175A - Improvements relating to contacts for electric circuit-breakers - Google Patents

Improvements relating to contacts for electric circuit-breakers

Info

Publication number
GB1246175A
GB1246175A GB816669A GB816669A GB1246175A GB 1246175 A GB1246175 A GB 1246175A GB 816669 A GB816669 A GB 816669A GB 816669 A GB816669 A GB 816669A GB 1246175 A GB1246175 A GB 1246175A
Authority
GB
United Kingdom
Prior art keywords
contact
movable contact
arc
contacts
series
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
GB816669A
Inventor
Peter Headley
Thomas Barker Robson
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB816669A priority Critical patent/GB1246175A/en
Publication of GB1246175A publication Critical patent/GB1246175A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
    • 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
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle
    • 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
    • H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil

Abstract

1,246,175. Circuit breakers. A. REYROLLE & CO. Ltd. 13 May, 1970 [14 Feb., 1969], No. 8166/69. Heading H1N. A high voltage circuit breaker, especially a puffer type gas blast breaker using sulphurhexafluoride, has a contact with resilient fingers, and an annular arcing portion segmented by a series of circumferential oblique slits so as to cause any arc produced to spin. A movable contact engages a fixed contact 10, and is secured to a puffer piston 12 carrying an insulating nozzle 14 and slidable in a cylinder 15. The system is filled with SF 6 gas which passes through apertures 17 to extinguish the arc drawn between the contacts. The movable contact comprises a cylindrical sleeve 11 with a series of oblique slits 19 forming a ring of resilient contact fingers 18 and having lips 21 on which the arc roots. In Fig. 3 (not shown) the obliquely cut arcing portion surrounds an axially cut separate movable contact. The contact may also be employed in vacuum-type circuit breakers.
GB816669A 1969-02-14 1969-02-14 Improvements relating to contacts for electric circuit-breakers Expired GB1246175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB816669A GB1246175A (en) 1969-02-14 1969-02-14 Improvements relating to contacts for electric circuit-breakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB816669A GB1246175A (en) 1969-02-14 1969-02-14 Improvements relating to contacts for electric circuit-breakers

Publications (1)

Publication Number Publication Date
GB1246175A true GB1246175A (en) 1971-09-15

Family

ID=9847051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB816669A Expired GB1246175A (en) 1969-02-14 1969-02-14 Improvements relating to contacts for electric circuit-breakers

Country Status (1)

Country Link
GB (1) GB1246175A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403669A1 (en) * 1976-09-23 1979-04-13 Sprecher & Schuh Ag HIGH VOLTAGE SHIELDED INSTALLATION
CN100440412C (en) * 2006-09-13 2008-12-03 施文峰 Low-voltage vacuum switch
EP2887367A1 (en) * 2013-12-19 2015-06-24 ABB Technology AB Gas-insulated high-voltage circuit breaker
CN106252151A (en) * 2016-08-31 2016-12-21 北京双杰电气股份有限公司 The contact apparatus of vacuum interrupter and vacuum interrupter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403669A1 (en) * 1976-09-23 1979-04-13 Sprecher & Schuh Ag HIGH VOLTAGE SHIELDED INSTALLATION
CN100440412C (en) * 2006-09-13 2008-12-03 施文峰 Low-voltage vacuum switch
EP2887367A1 (en) * 2013-12-19 2015-06-24 ABB Technology AB Gas-insulated high-voltage circuit breaker
CN106252151A (en) * 2016-08-31 2016-12-21 北京双杰电气股份有限公司 The contact apparatus of vacuum interrupter and vacuum interrupter

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