GB414491A - Improvements in and relating to alternating current power circuitbreakers - Google Patents

Improvements in and relating to alternating current power circuitbreakers

Info

Publication number
GB414491A
GB414491A GB15918/33A GB1591833A GB414491A GB 414491 A GB414491 A GB 414491A GB 15918/33 A GB15918/33 A GB 15918/33A GB 1591833 A GB1591833 A GB 1591833A GB 414491 A GB414491 A GB 414491A
Authority
GB
United Kingdom
Prior art keywords
nozzle
chamber
arc
baffles
fixed 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
GB15918/33A
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 Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB414491A publication Critical patent/GB414491A/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
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/75—Liquid-break switches, e.g. oil-break
    • 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
    • H01H33/7046—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 having special gas flow directing elements, e.g. grooves, extensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure

Landscapes

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

Abstract

414,491. Heavy-current switches. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 1, 1933, Nos. 15918 and 15919. Convention dates, June 1, 1932. [Class 38 (v).] Arc-rupturing devices.- An explosion chamber for liquid-immersed switches having a fixed contact in the end of the chamber and a pressure-relieving valve, is arranged so that the arc is formed within a nozzle which is closed by the valve at that end which is in the end of the chamber and has a tapered opening at that end which projects into the chamber. The nozzle may contain the fixed contact or may form the fixed contact, the arc then forming on the inner surface of the nozzle. The explosion pot a contains a number of baffles i into apertures k in which the movable contact fits closely. The fixed contact e is urged in the contact-making direction by a spring g and is located in a nozzle h of insulation or insulation-covered metal. The opening in the upper part of the nozzle is closed normally by a plate d under the action of springs f, so that when the maximum allowable pressure is exceeded, the arc is enveloped by gases flowing out of the chamber. The blow-out effect is enhanced by the baffles i which concentrate the gas-stream, but in Fig. 1 (not shown) the baffles are dispensed with. The Specification refers also to other constructions of fixed contacts, including a hollow one with openings at the blow-out end normally closed by a valve. The Specification as open to inspection under Sect. 91 contained also (1) the constructions forming the subject of Specification 412,403, and (2) a construction using transverse baffles which are thickened at the orifices. This subject-matter does not appear in the Specification as accepted.
GB15918/33A 1932-06-02 1933-06-01 Improvements in and relating to alternating current power circuitbreakers Expired GB414491A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA66128D DE626961C (en) 1932-06-02 1932-06-02 Pressure chamber for high-performance AC fluid switch
DEA66541D DE638580C (en) 1932-06-02 1932-07-12 Switch for large switching currents with arc extinguishing by a blowing current

Publications (1)

Publication Number Publication Date
GB414491A true GB414491A (en) 1934-08-09

Family

ID=31950124

Family Applications (2)

Application Number Title Priority Date Filing Date
GB15918/33A Expired GB414491A (en) 1932-06-02 1933-06-01 Improvements in and relating to alternating current power circuitbreakers
GB15921/33A Expired GB412403A (en) 1932-06-02 1933-06-01 Improvements in and relating to electric circuit breakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB15921/33A Expired GB412403A (en) 1932-06-02 1933-06-01 Improvements in and relating to electric circuit breakers

Country Status (6)

Country Link
US (1) US2022241A (en)
BE (1) BE396640A (en)
DE (2) DE626961C (en)
FR (1) FR756311A (en)
GB (2) GB414491A (en)
NL (3) NL36382C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425147A (en) * 1944-06-29 1947-08-05 Westinghouse Electric Corp Circuit interrupter
FR920442A (en) * 1945-10-03 1947-04-08 Merlin Gerin Interrupting chamber for alternating current
BE470474A (en) * 1946-01-21
US2612576A (en) * 1946-06-12 1952-09-30 Lange Emil Electric circuit breaker
DE1199367B (en) * 1956-03-27 1965-08-26 Westinghouse Electric Corp Electric switch
US2927182A (en) * 1958-02-27 1960-03-01 Gen Electric Fluid blast circuit interrupter
US2997564A (en) * 1958-09-19 1961-08-22 Westinghouse Electric Corp Circuit interrupter
GB869787A (en) * 1958-10-23 1961-06-07 Asea Ab Oil-blast electric circuit-breaker for high interruption currents
DE1207470B (en) * 1961-05-19 1965-12-23 Bbc Brown Boveri & Cie Electrical switchgear for high currents
DE1197156B (en) * 1963-03-06 1965-07-22 Siemens Ag Gas pressure switch
DE3412824A1 (en) * 1984-04-05 1985-10-17 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim ELECTRIC LOAD SWITCH, ESPECIALLY FOR USE IN MEDIUM VOLTAGE SWITCHGEAR

Also Published As

Publication number Publication date
GB412403A (en) 1934-06-28
DE626961C (en) 1936-03-05
FR756311A (en) 1933-12-07
NL36467C (en) 1935-09-16
NL65476B (en)
DE638580C (en) 1936-11-19
BE396640A (en) 1933-06-30
NL36382C (en) 1935-09-16
US2022241A (en) 1935-11-26

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