FR2246048A1 - Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel - Google Patents

Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel

Info

Publication number
FR2246048A1
FR2246048A1 FR7335093A FR7335093A FR2246048A1 FR 2246048 A1 FR2246048 A1 FR 2246048A1 FR 7335093 A FR7335093 A FR 7335093A FR 7335093 A FR7335093 A FR 7335093A FR 2246048 A1 FR2246048 A1 FR 2246048A1
Authority
FR
France
Prior art keywords
gas
nozzle
self
electric circuit
damping device
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
FR7335093A
Other languages
French (fr)
Other versions
FR2246048B1 (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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin 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 Merlin Gerin SA filed Critical Merlin Gerin SA
Priority to FR7335093A priority Critical patent/FR2246048A1/en
Publication of FR2246048A1 publication Critical patent/FR2246048A1/en
Application granted granted Critical
Publication of FR2246048B1 publication Critical patent/FR2246048B1/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
    • H01H33/91—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 the arc-extinguishing fluid being air or gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper

Landscapes

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

Abstract

The self-extinguishing electric circuit breaker has a cylindrical body (10) of insulating material containing a high dielectric constant gas. It is divided into two chambers by a fixed partition (12). It has an arc extinction device consisting of a piston (14) which compresses the gas between itself (14) and the partition (12). The piston (14) carries a nozzle (18) which blows the gas escaping from the compressed volume onto the contacts (16, 22). A damping device (24) brakes the movement of the moving contact (16), the piston (14) and the nozzle (18) when they arrive at the end of their travel against the partition (12).
FR7335093A 1973-09-28 1973-09-28 Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel Granted FR2246048A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7335093A FR2246048A1 (en) 1973-09-28 1973-09-28 Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7335093A FR2246048A1 (en) 1973-09-28 1973-09-28 Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel

Publications (2)

Publication Number Publication Date
FR2246048A1 true FR2246048A1 (en) 1975-04-25
FR2246048B1 FR2246048B1 (en) 1976-05-14

Family

ID=9125781

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7335093A Granted FR2246048A1 (en) 1973-09-28 1973-09-28 Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel

Country Status (1)

Country Link
FR (1) FR2246048A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041801A1 (en) * 1980-11-06 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt AUTOPNEUMATIC PRESSURE GAS SWITCH
US4491706A (en) * 1982-07-16 1985-01-01 Asea Aktiebolag Circuit breaker with means for producing a flow of arc-extinguishing gas
EP0780859A1 (en) * 1995-12-21 1997-06-25 Gec Alsthom T&D Ag Gas blast switch with brake arrangement on opening
EP4227968A1 (en) * 2022-02-11 2023-08-16 Hitachi Energy Switzerland AG Fast earthing switch for interrupting non-short-circuit currents

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3041801A1 (en) * 1980-11-06 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt AUTOPNEUMATIC PRESSURE GAS SWITCH
US4491706A (en) * 1982-07-16 1985-01-01 Asea Aktiebolag Circuit breaker with means for producing a flow of arc-extinguishing gas
EP0780859A1 (en) * 1995-12-21 1997-06-25 Gec Alsthom T&D Ag Gas blast switch with brake arrangement on opening
US5767471A (en) * 1995-12-21 1998-06-16 Gec Alsthom T & D Ag Pressurized gas circuit-breaker
EP4227968A1 (en) * 2022-02-11 2023-08-16 Hitachi Energy Switzerland AG Fast earthing switch for interrupting non-short-circuit currents
WO2023152321A1 (en) * 2022-02-11 2023-08-17 Hitachi Energy Switzerland Ag Fast earthing switch for interrupting non-short-circuit currents

Also Published As

Publication number Publication date
FR2246048B1 (en) 1976-05-14

Similar Documents

Publication Publication Date Title
GB1394547A (en) Electrical switches
GB1423406A (en) Puffer-type compressed-gas circuit interrupter with cdouble- flow action
GB904160A (en) Improvements in gas-blast electric circuit interrupters
FR2246048A1 (en) Self-extinguishing electric circuit braker - has gas and nozzle for arc extinction and damping device to brake contact travel
GB1277056A (en) Vacuum gap devices with reentrant arc-electrode structure
FR2356258A1 (en) Compressed gas circuit breaker - has sprung free piston slidable on separator and facing fixed contact close to nozzle
FR2227618A1 (en) Electrical circuit-breaker with gas-generating PTFE - in switch chambers, with porous structure for escape of gases
EP0161036A3 (en) High-voltage electric switch with arc extinguishing device using self-generation of a quenching pressure
GB1509073A (en) Puffer-type gas circuit-interrupter
FR2422246A1 (en) Discharge suppressor for gas filled circuit breakers - is both magnetically and pneumatically operated with vents and baffles angled inward being displaced from contacts as circuit is broken
GB1149584A (en) Fluid-blast circuit interrupters with a fluid-driving piston and cooperable floating piston with accelerating coils
GB1264756A (en)
ES284461U (en) Break chamber for a gas-blast circuit breaker
FR2239750A1 (en) Switch with enclosed blast chamber - divided chamber with nozzle in partition wall actuates blast by heat or arc
FR2274155A1 (en) Safety circuit for high-voltage capacitor - short-circuiting contacts separate under gas pressure
GB948698A (en) Gas-blast electric circuit interrupters
AU507817B2 (en) Puffer type compressed gas interrupter
GB1477711A (en) Electric circuit breaker
GB1506367A (en) Gas-blast switch
GB948876A (en) Gas-blast electric circuit interrupters
FR2271652A2 (en) Gas blast cct. breaker - has aperture partitions, each with piston coupled to moving contact and having nozzle port
FR2312851A1 (en) Contact breaker arc chamber - has self-pressurising gas blow-out with double action
FR2368792A1 (en) Gas blast circuit breaker - has two annular electrodes, one acting as intermediate on one for light arc extinguishing between first one and chamber partition
CA1008114A (en) Breaking chamber for self-blasting compressed gas electric circuit-breakers
FR2283538A1 (en) Sulphur hexafluoride filled circuit breaker - has apertured moving contact carried by sliding piston with coaxial blast piston

Legal Events

Date Code Title Description
ST Notification of lapse