GB1222869A - Automatic circuit interrupter - Google Patents

Automatic circuit interrupter

Info

Publication number
GB1222869A
GB1222869A GB55352/68A GB5535268A GB1222869A GB 1222869 A GB1222869 A GB 1222869A GB 55352/68 A GB55352/68 A GB 55352/68A GB 5535268 A GB5535268 A GB 5535268A GB 1222869 A GB1222869 A GB 1222869A
Authority
GB
United Kingdom
Prior art keywords
lever
plunger
contacts
spring
contact unit
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
GB55352/68A
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.)
McGraw Edison Co
Original Assignee
McGraw Edison 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 McGraw Edison Co filed Critical McGraw Edison Co
Publication of GB1222869A publication Critical patent/GB1222869A/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
    • H01H75/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism
    • H01H75/02—Details
    • H01H75/04—Reset mechanisms for automatically reclosing a limited number of times
    • 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
    • H01H33/66238—Specific bellows details
    • H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)

Abstract

1,222,869. Electromagnetic interrupters; vacuum switches. McGRAW-EDISON CO. 21 Nov., 1968 [10 April, 1968], No. 55352/68. Heading H1N. An automatic recloser has a vacuum contact unit 12 operated through a snap-action bellcrank lever mechanism 14 acted upon by a plunger 10 of an electromagnet which has its coil 8 in series with the contacts 54, 56 of the vacuum contact unit. On overload the plunger 10 is moved downward to move a link 80, pivoted at 82, so that a link 90, connected thereto, moves a spring 124 across the pivot axis 114 of a bell-crank lever 110 and a lever 128 snaps to the position (Fig. 4, not shown) in which its pin 130 strikes the other end of a slot 132 in the lever 110 which is moved to open the contacts. The coil is thus de-energized and the spring 24 shortens to drive the plunger 10 upward and so recrosses the pivot axis 114 and snaps the lever 128 to the top end of slot 132 and recloses the contacts. The vacuum contact unit has an arc shield 64 and electrostatic shield 62 and a spring-biased linkage 150, 152 provides compensation for the effect of pressure differential during operation. A lock-out mechanism 4, hydraulic timing means 6 and trip piston stem operate to allow for a set number of reclosures before final locking in the circuit interrupted position requiring manual resetting.
GB55352/68A 1968-04-10 1968-11-21 Automatic circuit interrupter Expired GB1222869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72016868A 1968-04-10 1968-04-10

Publications (1)

Publication Number Publication Date
GB1222869A true GB1222869A (en) 1971-02-17

Family

ID=24892925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55352/68A Expired GB1222869A (en) 1968-04-10 1968-11-21 Automatic circuit interrupter

Country Status (2)

Country Link
US (1) US3526860A (en)
GB (1) GB1222869A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274545A (en) * 1993-01-20 1994-07-27 Toshiba Kk Vacuum circuit breaker
CN111785564A (en) * 2020-07-09 2020-10-16 河南智开智能科技有限公司 Novel protection type permanent magnetism vacuum circuit breaker

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755714A (en) * 1971-12-20 1973-08-28 Rte Corp Self-contained interrupting apparatus for an electric power distribution system
DE102007018344B4 (en) 2007-04-16 2022-08-04 Siemens Energy Global GmbH & Co. KG Device for protecting converter modules

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE684885C (en) * 1936-10-30 1939-12-07 Aeg Circuit breakers or circuit breakers, in particular compressed gas switches, for remote control by means of brief mains interruptions
FR1282733A (en) * 1960-12-17 1962-01-27 Switching device for charging the electric current
US3189708A (en) * 1963-03-28 1965-06-15 Gen Electric Electric circuit recloser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274545A (en) * 1993-01-20 1994-07-27 Toshiba Kk Vacuum circuit breaker
US5422450A (en) * 1993-01-20 1995-06-06 Kabushiki Kaisha Toshiba Vacuum circuit breaker actuating assembly
CN111785564A (en) * 2020-07-09 2020-10-16 河南智开智能科技有限公司 Novel protection type permanent magnetism vacuum circuit breaker
CN111785564B (en) * 2020-07-09 2022-07-12 河南智开智能科技有限公司 Novel protection type permanent magnetism vacuum circuit breaker

Also Published As

Publication number Publication date
US3526860A (en) 1970-09-01

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