FR2349205A1 - Drive boost for gas blast circuit breaker - uses differential piston to compress quenching gas to high press. for arc quenching - Google Patents

Drive boost for gas blast circuit breaker - uses differential piston to compress quenching gas to high press. for arc quenching

Info

Publication number
FR2349205A1
FR2349205A1 FR7711836A FR7711836A FR2349205A1 FR 2349205 A1 FR2349205 A1 FR 2349205A1 FR 7711836 A FR7711836 A FR 7711836A FR 7711836 A FR7711836 A FR 7711836A FR 2349205 A1 FR2349205 A1 FR 2349205A1
Authority
FR
France
Prior art keywords
quenching
gas
circuit breaker
quenching gas
compress
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.)
Granted
Application number
FR7711836A
Other languages
French (fr)
Other versions
FR2349205B1 (en
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
Original Assignee
BBC Brown Boveri AG Switzerland
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 filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2349205A1 publication Critical patent/FR2349205A1/en
Application granted granted Critical
Publication of FR2349205B1 publication Critical patent/FR2349205B1/fr
Granted 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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/901—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc
    • H01H33/903—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc and assisting the operating mechanism

Abstract

The quenching gas flow is produced by a compression device during switching off. The quenching gas in the circuit breaker is compressed in a compression chamber (2) by the face (1a) of a differential piston (1). The high compression causes the quenching gas to flow in the direction of the light arc. At least part of the quenching gas, heated by the light arc, is expanded in a quenching gas expansion chamber (6). Thus the other face (1b) of the piston ana at least a part of the chamber boundary (6a) are moved apart. This fraction of the quenching gas is drawn off towards the end of the switching off from the expansion chamber to the quenching chamber of the circuit breaker surrounding the compression and expansion chambers.
FR7711836A 1976-04-22 1977-04-20 Drive boost for gas blast circuit breaker - uses differential piston to compress quenching gas to high press. for arc quenching Granted FR2349205A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH503076A CH600538A5 (en) 1976-04-22 1976-04-22

Publications (2)

Publication Number Publication Date
FR2349205A1 true FR2349205A1 (en) 1977-11-18
FR2349205B1 FR2349205B1 (en) 1982-01-08

Family

ID=4286741

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7711836A Granted FR2349205A1 (en) 1976-04-22 1977-04-20 Drive boost for gas blast circuit breaker - uses differential piston to compress quenching gas to high press. for arc quenching

Country Status (9)

Country Link
JP (1) JPS52129976A (en)
BR (1) BR7702509A (en)
CH (1) CH600538A5 (en)
DE (2) DE2620675C3 (en)
FR (1) FR2349205A1 (en)
HU (1) HU181654B (en)
IT (1) IT1075470B (en)
SE (1) SE7704407L (en)
SU (1) SU967285A3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356258A1 (en) * 1976-06-24 1978-01-20 Sprecher & Schuh Ag Compressed gas circuit breaker - has sprung free piston slidable on separator and facing fixed contact close to nozzle
FR2576143A1 (en) * 1985-01-16 1986-07-18 Alsthom Atlantique HIGH-VOLTAGE, COMPRESSED GAS, CIRCUIT BREAKER ASSISTED BY THE ARC THERMAL EFFECT AND WITH DOUBLE MOTION
FR2576144A1 (en) * 1985-01-16 1986-07-18 Alsthom Atlantique HIGH VOLTAGE, COMPRESSED GAS, LOW-ENERGY CIRCUIT BREAKER
EP0554686A1 (en) * 1992-02-06 1993-08-11 GEC Alsthom T&D AG Gas blast switch

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH625908A5 (en) * 1978-03-30 1981-10-15 Sprecher & Schuh Ag
EP0146671B1 (en) * 1983-11-15 1988-01-27 Sprecher Energie AG Compressed gas circuit breaker
FR2576142B1 (en) * 1985-01-16 1987-12-24 Alsthom Atlantique HIGH VOLTAGE CIRCUIT BREAKER, COMPRESSED GAS, HANDLING ENERGY ASSISTED BY THE ARC THERMAL EFFECT
FR2596575B1 (en) * 1986-03-26 1988-05-20 Alsthom DIELECTRIC GAS CIRCUIT BREAKER UNDER PRESSURE
FR2641409B1 (en) * 1989-01-02 1996-04-26 Alsthom Gec HIGH AND MEDIUM VOLTAGE CIRCUIT BREAKER WITH SUPPLY GAS
FR2646013B1 (en) * 1989-04-17 1996-02-23 Alsthom Gec MEDIUM VOLTAGE CIRCUIT BREAKER
EP4024425A1 (en) * 2020-12-28 2022-07-06 Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co. Switching device with movable nozzle element

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196919A (en) * 1938-08-06 1940-04-09 Harold J Hirschey Safety device for hydraulic brake systems
US2447950A (en) * 1945-04-03 1948-08-24 Westinghouse Electric Corp Circuit interrupter
US2572406A (en) * 1948-09-02 1951-10-23 Stulz Charles High-voltage oil circuit breaker
US2933575A (en) * 1956-10-22 1960-04-19 Westinghouse Electric Corp Circuit interrupters
US2957063A (en) * 1958-03-07 1960-10-18 Westinghouse Electric Corp Pumped-gas circuit interrupter
FR1288567A (en) * 1960-05-06 1962-03-24 Reyrolle A & Co Ltd Improvements to switches incorporating an arc blowing device
FR2061975A5 (en) * 1969-10-06 1971-06-25 Merlin Gerin

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524904C (en) * 1929-02-28 1931-05-20 Sachsenwerk Licht & Kraft Ag Oil switch, in which the pressure that occurs during the shutdown process is used to generate an oil flow directed against the arc to extinguish the arc
GB378471A (en) * 1931-05-09 1932-08-09 Electr & Allied Ind Res Ass Improvements relating to electric switches or circuit breakers
CH519238A (en) * 1970-07-17 1972-02-15 Bbc Brown Boveri & Cie Electric compression switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2196919A (en) * 1938-08-06 1940-04-09 Harold J Hirschey Safety device for hydraulic brake systems
US2447950A (en) * 1945-04-03 1948-08-24 Westinghouse Electric Corp Circuit interrupter
US2572406A (en) * 1948-09-02 1951-10-23 Stulz Charles High-voltage oil circuit breaker
US2933575A (en) * 1956-10-22 1960-04-19 Westinghouse Electric Corp Circuit interrupters
US2957063A (en) * 1958-03-07 1960-10-18 Westinghouse Electric Corp Pumped-gas circuit interrupter
FR1288567A (en) * 1960-05-06 1962-03-24 Reyrolle A & Co Ltd Improvements to switches incorporating an arc blowing device
FR2061975A5 (en) * 1969-10-06 1971-06-25 Merlin Gerin

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356258A1 (en) * 1976-06-24 1978-01-20 Sprecher & Schuh Ag Compressed gas circuit breaker - has sprung free piston slidable on separator and facing fixed contact close to nozzle
FR2576143A1 (en) * 1985-01-16 1986-07-18 Alsthom Atlantique HIGH-VOLTAGE, COMPRESSED GAS, CIRCUIT BREAKER ASSISTED BY THE ARC THERMAL EFFECT AND WITH DOUBLE MOTION
FR2576144A1 (en) * 1985-01-16 1986-07-18 Alsthom Atlantique HIGH VOLTAGE, COMPRESSED GAS, LOW-ENERGY CIRCUIT BREAKER
US4650942A (en) * 1985-01-16 1987-03-17 Alsthom Compressed gas high tension circuit breaker, requiring low operating energy
EP0554686A1 (en) * 1992-02-06 1993-08-11 GEC Alsthom T&D AG Gas blast switch
US5304762A (en) * 1992-02-06 1994-04-19 Sprecher Energie Ag Gas-blast circuit breaker

Also Published As

Publication number Publication date
DE2620675A1 (en) 1977-11-03
IT1075470B (en) 1985-04-22
HU181654B (en) 1983-10-28
JPS52129976A (en) 1977-10-31
DE2620675B2 (en) 1980-08-07
JPS622419B2 (en) 1987-01-20
FR2349205B1 (en) 1982-01-08
DE2620675C3 (en) 1981-05-07
DE7614806U1 (en) 1978-02-16
SE7704407L (en) 1977-10-23
SU967285A3 (en) 1982-10-15
CH600538A5 (en) 1978-06-15
BR7702509A (en) 1978-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse