GB1447676A - Vacuum circuit interrupter - Google Patents

Vacuum circuit interrupter

Info

Publication number
GB1447676A
GB1447676A GB5534173A GB5534173A GB1447676A GB 1447676 A GB1447676 A GB 1447676A GB 5534173 A GB5534173 A GB 5534173A GB 5534173 A GB5534173 A GB 5534173A GB 1447676 A GB1447676 A GB 1447676A
Authority
GB
United Kingdom
Prior art keywords
shields
rods
heat sink
heat
contact
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
GB5534173A
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers 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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Publication of GB1447676A publication Critical patent/GB1447676A/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
    • H01H33/60—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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66276—Details relating to the mounting of screens in 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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66292—Details relating to the use of multiple screens in vacuum switches

Landscapes

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

Abstract

1447676 Vacuum switches ALLIS-CHALMERS CORP 29 Nov 1973 [5 Dec 1972] 55341/73 Heading H1N A sealed vacuum circuit interrupter having a heat sink and heat conducting dispersal shields comprises a conventional arrangement of contact carrying rods 29, 37 and bellows 40 with respect to metal end caps 26, 27 but the tubular envelope includes a relatively massive metal heat sink 12 located between two insulaters 14, 16 and a pair of opposed bell-shaped thin metal shields 55, 70 are insulatingly supported from the contact rods and from ground and are disposed in surrounding relationship to the rods 29, 37 so that the bell mouths are spaced apart approximately equivalent to the contacts open gap and so that their peripheries 56, 72 are adjacent the heat sink 12. Metallic collar shields 58, 71 attached to the end caps overlap the bell ends 57, 73 to protect the insulators 14, 16 and further shields 45, 65 and baffles 50, 68 protect the respective contact-carrying rods and bellows from arc products and serve as condensing surfaces. All the internal shields act as heat conductors either to the principal heat sink 12 or to the end caps 26, 27 serving as auxiliary heat sinks. In a modified arrangement (Fig. 2, not shown) the baffles for the contact rods are dispensed with and a fixed shield (87) and a bellows shield (81) are directly and conductively attached to the corresponding current carrying rods to improve the heat transfer.
GB5534173A 1972-12-05 1973-11-29 Vacuum circuit interrupter Expired GB1447676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31238372A 1972-12-05 1972-12-05

Publications (1)

Publication Number Publication Date
GB1447676A true GB1447676A (en) 1976-08-25

Family

ID=23211196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5534173A Expired GB1447676A (en) 1972-12-05 1973-11-29 Vacuum circuit interrupter

Country Status (5)

Country Link
US (1) US3766345A (en)
JP (1) JPS4995181A (en)
CA (1) CA977809A (en)
DE (1) DE2360668A1 (en)
GB (1) GB1447676A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061894A (en) * 1976-04-28 1977-12-06 General Electric Company Vacuum-type circuit interrupter with improved protection for bellows
DE19713478C1 (en) * 1997-03-18 1998-04-09 Siemens Ag Vacuum switch tube e.g. for low-voltage switching
DE102008031472B4 (en) * 2008-07-02 2010-05-06 Siemens Aktiengesellschaft Vacuum interrupter
DE102009031598B4 (en) * 2009-07-06 2011-06-01 Siemens Aktiengesellschaft Vacuum interrupter
KR101362861B1 (en) * 2011-02-14 2014-02-14 가부시끼가이샤 도시바 Molded vacuum valve and method of manufacture thereof and resin casting mold
WO2018189939A1 (en) * 2017-04-11 2018-10-18 三菱電機株式会社 Vacuum valve and vacuum circuit breaker using same
TWM575626U (en) 2017-06-26 2019-03-11 美商米沃奇電子工具公司 battery charger

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508021A (en) * 1967-01-03 1970-04-21 Vacuum Power Components Inc Vacuum switch
US3683139A (en) * 1969-11-06 1972-08-08 Westinghouse Electric Corp Contact structures for vacuum-type circuit breakers
US3705281A (en) * 1971-04-29 1972-12-05 Joslyn Mfg & Supply Co Bushing insulator improvements for a dead tank vacuum switch

Also Published As

Publication number Publication date
JPS4995181A (en) 1974-09-10
CA977809A (en) 1975-11-11
US3766345A (en) 1973-10-16
DE2360668A1 (en) 1974-06-06

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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