GB1545998A - Circuit breakers - Google Patents

Circuit breakers

Info

Publication number
GB1545998A
GB1545998A GB4772477A GB4772477A GB1545998A GB 1545998 A GB1545998 A GB 1545998A GB 4772477 A GB4772477 A GB 4772477A GB 4772477 A GB4772477 A GB 4772477A GB 1545998 A GB1545998 A GB 1545998A
Authority
GB
United Kingdom
Prior art keywords
contact member
gas
switching arc
moving contact
insulating
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
GB4772477A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
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 BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB1545998A publication Critical patent/GB1545998A/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
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
    • H01H33/982—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow in which the pressure-generating arc is rotated by a magnetic field

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

In a high-voltage switch with a case (1) filled with insulating gas, a fixed contact member (2) and a moving contact member (11) and with a fixed ring electrode (3) which surrounds the fixed contact member (2) and is connected to it via a coil (5), the susceptibility of the contact members (2, 11) to erosion by the switching arc is to be reduced and the quenching characteristic improved. This is achieved by the moving contact member (11) being constructed to be mushroom-shaped and exhibiting an insulating body (12) which operates in conjunction with a ring deflector (10) consisting of insulating material and connected form-locked to the case (1). This varies the flow cross section for the gas, heated by the switching arc and compressed, between the insulating body (12) and the deflector (10) in dependence on the degree of opening of the moving contact member (11) and results in a progressive increase in pressure of the gas with subsequent quenching of the switching arc and at the same time reduced wear of the contact members (2, 11). <IMAGE>
GB4772477A 1976-11-18 1977-11-16 Circuit breakers Expired GB1545998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7634703A FR2371762A1 (en) 1976-11-18 1976-11-18 HIGH VOLTAGE ELECTRICAL CUT-OFF DEVICE, ESPECIALLY A SELF-BLOWING CIRCUIT BREAKER FOR GAS CUTTING

Publications (1)

Publication Number Publication Date
GB1545998A true GB1545998A (en) 1979-05-16

Family

ID=9180044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4772477A Expired GB1545998A (en) 1976-11-18 1977-11-16 Circuit breakers

Country Status (5)

Country Link
CH (1) CH621431A5 (en)
DE (2) DE2750763A1 (en)
FR (1) FR2371762A1 (en)
GB (1) GB1545998A (en)
IT (1) IT1088230B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8598483B2 (en) 2009-02-13 2013-12-03 Siemens Aktiengesellschaft High-voltage power switch having a contact gap equipped with switching gas deflection elements
CN113707494A (en) * 2021-09-09 2021-11-26 西安交通大学 Vacuum degree detection device with vacuum arc-extinguishing chamber embedded electrode and method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459543A1 (en) * 1979-06-15 1981-01-09 Alsthom Cgee HIGH VOLTAGE CIRCUIT BREAKER WITH ROTATING ARC AND SELF-BLOWING
JPS59144726U (en) * 1983-03-15 1984-09-27 日新電機株式会社 Gas cutter
DE8410454U1 (en) * 1984-04-04 1985-05-15 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Arc extinguishing device for switchgear in electrical power engineering
DE3789165T2 (en) * 1986-06-06 1994-10-06 Mitsubishi Electric Corp Switchgear.
ES2066175T3 (en) * 1989-02-27 1995-03-01 Merlin Gerin ROTARY ARC CIRCUIT BREAKER AND WITH CENTRIFUGAL EFFECT OF EXTINGUISHING GAS.
FR2710452B1 (en) * 1993-09-20 1995-11-24 Merlin Gerin High voltage rotary arc switch.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8598483B2 (en) 2009-02-13 2013-12-03 Siemens Aktiengesellschaft High-voltage power switch having a contact gap equipped with switching gas deflection elements
CN113707494A (en) * 2021-09-09 2021-11-26 西安交通大学 Vacuum degree detection device with vacuum arc-extinguishing chamber embedded electrode and method
CN113707494B (en) * 2021-09-09 2022-06-21 西安交通大学 Vacuum degree detection device with vacuum arc-extinguishing chamber embedded electrode and method

Also Published As

Publication number Publication date
DE2750763A1 (en) 1978-06-01
FR2371762A1 (en) 1978-06-16
DE7734830U1 (en) 1978-09-14
FR2371762B1 (en) 1980-10-10
IT1088230B (en) 1985-06-10
CH621431A5 (en) 1981-01-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee