GB1319269A - Electric circuit breaker with magnetically assisted closing means - Google Patents

Electric circuit breaker with magnetically assisted closing means

Info

Publication number
GB1319269A
GB1319269A GB4808770A GB4808770A GB1319269A GB 1319269 A GB1319269 A GB 1319269A GB 4808770 A GB4808770 A GB 4808770A GB 4808770 A GB4808770 A GB 4808770A GB 1319269 A GB1319269 A GB 1319269A
Authority
GB
United Kingdom
Prior art keywords
spring
during
contacts
latch
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
GB4808770A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1319269A publication Critical patent/GB1319269A/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
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal

Landscapes

  • Breakers (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

1319269 Automatic circuit breakers; vacuum switches GENERAL ELECTRIC CO 9 Oct 1970 [9 Oct 1969] 48087/70 Heading H1N A circuit breaker comprises electromagnetic means arranged to exert a closing force on the movable contact during closing but rendered ineffective during opening. The invention is described as applied to a vacuum switch having a fixed contact 11 and moving contact 12. The latter is closed by rotating a cam 50 bearing against a roller 52 to straighten the toggle 32, 34, thereby raising the rod 21 and closing the contacts through a lost-motion, prestressed spring assembly 22. Current is led to the moving contact through a flexible braid conductor 68 attached to pivoted links 74, 75 and set in a U-shaped configuration so as to exert a straightening thrust on the links and thus tend to close the contacts 11, 12 immediately they make contact. The switch is tripped by disengaging a pivoted latch 42 from a knee pivot 38 so that the linkage 32, 34, 39 collapses and the contacts are opened by opening spring 19. During the initial part of this opening movement the contacts 11, 12 are held closed by spring 26, while the rod 21 is moved downwards by the spring 19, and during this time a roller 90 rocks a latch 83 counter-clockwise so that the arm 80 is no longer supported and the sideways thrust of the conductor 68 on the links 74, 75 can no longer exert an upward thrust on the contact 12. Subsequently the latch 42 is returned to its latched position by spring 42a and latch 83 is restored during the initial part of the next closing movement of the rod 21.
GB4808770A 1969-10-09 1970-10-09 Electric circuit breaker with magnetically assisted closing means Expired GB1319269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86504669A 1969-10-09 1969-10-09

Publications (1)

Publication Number Publication Date
GB1319269A true GB1319269A (en) 1973-06-06

Family

ID=25344601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4808770A Expired GB1319269A (en) 1969-10-09 1970-10-09 Electric circuit breaker with magnetically assisted closing means

Country Status (6)

Country Link
US (1) US3663906A (en)
JP (1) JPS508499B1 (en)
DE (1) DE2049393A1 (en)
FR (1) FR2065150A5 (en)
GB (1) GB1319269A (en)
SE (1) SE371325B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247569A (en) * 1990-08-30 1992-03-04 Mk Electric Ltd Energy storage device/ circuit breaker assembly
WO2018050761A1 (en) * 2016-09-16 2018-03-22 Eaton Industries (Netherlands) B.V. Circuit breaker with open-close-open functionality

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777291A (en) * 1972-11-20 1973-12-04 Gen Electric Electric switch with magnetic-assist means to assist switch in closing and remaining closed against high currents
US3921109A (en) * 1974-06-20 1975-11-18 Westinghouse Electric Corp Circuit-interrupter
US4032870A (en) * 1975-09-15 1977-06-28 General Electric Company Electric circuit breaker with electromagnetic-assist means for opposing magnetic contact-separating forces
US4030055A (en) * 1976-02-27 1977-06-14 General Electric Company Electric circuit breaker with electro-magnetic means for opposing magnetic contact-repulsion forces
US4025886A (en) * 1976-06-04 1977-05-24 General Electric Company Electric circuit breaker with electro-magnetically-assisted closing means
US4099039A (en) * 1976-12-20 1978-07-04 General Electric Company Means for effectively controlling the forces imposed on the movable contact of a vacuum-type circuit interrupter
US4247745A (en) * 1978-09-13 1981-01-27 Westinghouse Electric Corp. Vacuum-type contactor assembly
US4263572A (en) * 1978-10-16 1981-04-21 S & C Electric Company Shunt trip mechanism for a circuit interrupting device
DE3432086A1 (en) * 1984-08-28 1986-03-06 Siemens AG, 1000 Berlin und 8000 München CONTACT ARRANGEMENT WITH A CURRENT-DEPENDENT POWER FOR EXTENSING THE CONTACT FORCE
DE3726739A1 (en) * 1987-08-07 1988-03-03 Slamecka Ernst Contact pressure-producing device especially for vacuum switches in a single-row or double-row arrangement
DE3815805A1 (en) * 1988-05-09 1989-11-23 Calor Emag Elektrizitaets Ag Vacuum switch
DE4133092A1 (en) * 1991-09-30 1993-04-01 Siemens Ag MULTIPOLE VACUUM SWITCH WITH A POLAR DRIVE UNIT FOR EVERY VACUUM SWITCH TUBE
DE4210714A1 (en) * 1992-03-27 1993-09-30 Siemens Ag Vacuum switch with a current loop arrangement
DE4411596C1 (en) * 1994-03-30 1995-06-08 Holec Schaltgeraete Gmbh Vacuum load switch operating drive
DE9409006U1 (en) * 1994-05-30 1994-07-28 Siemens AG, 80333 München Insulating support for vacuum interrupters
DE19852530C1 (en) * 1998-11-06 2000-06-21 Siemens Ag High voltage vacuum switch
IT1313278B1 (en) * 1999-07-30 2002-07-17 Abb Ricerca Spa LOW VOLTAGE POWER SWITCH.
FR2808117B1 (en) * 2000-03-31 2003-01-24 Schneider Electric Ind Sa ELECTRICAL SWITCHING APPARATUS COMPRISING A VACUUM BULB AND A FLEXIBLE ELECTRICAL CONNECTION
JP2008140732A (en) * 2006-12-05 2008-06-19 Osaka Titanium Technologies Co Ltd High current circuit breaker
US7646269B2 (en) * 2007-03-07 2010-01-12 Eaton Corporation Electrical switching apparatus, and conductor assembly and shunt assembly therefor
WO2009034092A1 (en) * 2007-09-11 2009-03-19 Siemens Aktiengesellschaft Insulating switching rod
WO2013044990A1 (en) * 2011-09-30 2013-04-04 Abb Technology Ag Actuating device for a current switching device
DE102014102875B4 (en) * 2014-03-05 2016-05-25 Maschinenfabrik Reinhausen Gmbh Actuating device for actuating a vacuum interrupter, switching device with such an actuator and on-load tap changer with such a switching device
DE102017207039A1 (en) * 2017-04-26 2018-10-31 Siemens Aktiengesellschaft vacuum switch
JP6687295B2 (en) * 2017-05-23 2020-04-22 三菱電機株式会社 Switchgear
BR112021003337B1 (en) 2019-01-31 2022-02-01 S&C Electric Company Method and system for closing an actuator in a magnetically actuated switch assembly.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US21087A (en) * 1858-08-03 Ox-yoke
US2695345A (en) * 1950-04-19 1954-11-23 Ite Circuit Breaker Ltd Blow open, blow closed circuit breaker
US3366900A (en) * 1966-06-16 1968-01-30 Gen Electric Electric circuit breaker with electromagnetic means for opposing contactrepulsion forces

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247569A (en) * 1990-08-30 1992-03-04 Mk Electric Ltd Energy storage device/ circuit breaker assembly
US5121645A (en) * 1990-08-30 1992-06-16 M.K. Electric Limited Latchable energy storage device for operating a mechanism
WO2018050761A1 (en) * 2016-09-16 2018-03-22 Eaton Industries (Netherlands) B.V. Circuit breaker with open-close-open functionality
GB2557584A (en) * 2016-09-16 2018-06-27 Eaton Ind Netherlands Bv Circuit Breaker with open-close-open Functionality

Also Published As

Publication number Publication date
FR2065150A5 (en) 1971-07-23
US3663906A (en) 1972-05-16
DE2049393A1 (en) 1971-04-29
JPS508499B1 (en) 1975-04-04
SE371325B (en) 1974-11-11

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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