GB1394545A - Electrical switch - Google Patents

Electrical switch

Info

Publication number
GB1394545A
GB1394545A GB1477573A GB1477573A GB1394545A GB 1394545 A GB1394545 A GB 1394545A GB 1477573 A GB1477573 A GB 1477573A GB 1477573 A GB1477573 A GB 1477573A GB 1394545 A GB1394545 A GB 1394545A
Authority
GB
United Kingdom
Prior art keywords
gas
contact
arc
pass
auxiliary
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
GB1477573A
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE19722220897 external-priority patent/DE2220897C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1394545A publication Critical patent/GB1394545A/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
    • H01H33/88—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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H33/7053—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 a bridging element around two hollow tubular contacts

Landscapes

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

Abstract

1394545 Gas blast switches SIEMENS AG 27 March 1973 [27 March 1972] 14775/73 Heading H1N In a high voltage electrical switch of the puffer type wherein two fixed contacts 3, 4 shaped to define nozzles 3a, 4a for the flow of arc quenching SF 6 gas co-operate with a movable bridging contact 7 having at its trailing end a contact ring 9 of arc resistant material, and wherein the moving contact when the switch opens moves in conjunction with a piston arrangement 10 to compress the arc quenching gas, a set of auxiliary gas by-pass ducts 40 are provided to improve the flow 41b of the arc quenching gas past contact ring 9. These auxiliary ducts enter the main gas path again via bores 42 downstream of nozzle 4a. In a second embodiment, Fig. 5 (not shown), shaped by-pass passages (50) are formed in the fixed contact (4) behind the nozzle (4a). In a third embodiment passages are provided in the contact ring 9 itself, through which an auxiliary flow of gas can pass to the arc zone.
GB1477573A 1972-02-22 1973-03-27 Electrical switch Expired GB1394545A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2209287A DE2209287C3 (en) 1972-02-22 1972-02-22 Electric pressure gas switch
DE2215656A DE2215656C3 (en) 1972-02-22 1972-03-27 Electric pressure gas switch
DE19722220897 DE2220897C3 (en) 1972-04-25 Electric pressure gas switch

Publications (1)

Publication Number Publication Date
GB1394545A true GB1394545A (en) 1975-05-21

Family

ID=27184144

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1477573A Expired GB1394545A (en) 1972-02-22 1973-03-27 Electrical switch
GB1975073A Expired GB1394547A (en) 1972-02-22 1973-04-25 Electrical switches

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1975073A Expired GB1394547A (en) 1972-02-22 1973-04-25 Electrical switches

Country Status (6)

Country Link
US (3) US3789175A (en)
CH (3) CH544999A (en)
DE (2) DE2209287C3 (en)
FR (3) FR2172980B1 (en)
GB (2) GB1394545A (en)
NL (1) NL173576C (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2232314C3 (en) * 1972-06-27 1979-05-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Contact system for electrical high-voltage devices with a gaseous insulating medium, in particular high-voltage circuit breakers
DE2234067C3 (en) * 1972-07-07 1982-06-16 Siemens AG, 1000 Berlin und 8000 München Contact system for compressed gas-insulated high-voltage switchgear
GB1445217A (en) * 1973-08-02 1976-08-04 Siemens Ag Electrical circuit breaker and contacts therefor
DE2406143C3 (en) * 1974-02-07 1978-04-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electric pressurized gas circuit breaker with two fixed contact pieces and one bridge contact piece
DE2438017C3 (en) * 1974-08-05 1981-07-02 Siemens AG, 1000 Berlin und 8000 München Gas switch
GB1459727A (en) * 1974-09-17 1976-12-31 Siemens Ag Electrical gas-blast circuit breaker
DE2540315C3 (en) * 1975-09-08 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gas switch
US4181837A (en) * 1976-09-15 1980-01-01 Westinghouse Electric Corp. Compressed-gas circuit interrupter having insulated contacts
DE2759268C3 (en) * 1977-12-30 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Gas switch
DE2809006A1 (en) * 1978-03-02 1979-09-06 Licentia Gmbh COMPRESSED GAS CIRCUIT BREAKER
DE2833154C3 (en) * 1978-07-28 1982-02-18 Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart counter
FR2443740A1 (en) * 1978-12-08 1980-07-04 Merlin Gerin Arc suppressing circuit breaker - has one electrode extending from piston whose withdrawal creates partial vacuum
DE2908982C3 (en) * 1979-03-06 1982-01-28 Siemens AG, 1000 Berlin und 8000 München Electric pressure gas switch
CH637241A5 (en) * 1979-03-14 1983-07-15 Sprecher & Schuh Ag Sliding-contact device for a switch
FR2476381B1 (en) * 1980-02-16 1985-10-25 Hitachi Ltd GAS INSULATED DISCONNECTOR
DE3113325A1 (en) * 1981-03-30 1982-06-24 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka High-voltage switching chamber
DE3209968A1 (en) * 1982-03-18 1983-09-29 Siemens AG, 1000 Berlin und 8000 München EXHAUST GAS SWITCH
DE3323865C2 (en) * 1983-06-29 1991-01-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka High-voltage switching chamber
DE3822410C1 (en) * 1988-07-01 1989-10-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De Sulphur hexa:fluoride compressed gas switch - has thread between nozzle and cylinder to better withstand force and temp. loading without enlargement of actual mass of nozzle
FR2680044B1 (en) * 1991-08-02 1995-01-20 Alsthom Gec MEDIUM OR HIGH VOLTAGE CIRCUIT BREAKER WITH ARC-END CONTACTORS.
DE4420386C2 (en) * 1994-05-31 1998-07-02 Siemens Ag Pressurized gas circuit breaker with an insulating nozzle
DE19519992C2 (en) * 1995-05-24 2002-03-21 Siemens Ag Switching section for a high-voltage circuit breaker working with an extinguishing gas
DE19629475A1 (en) * 1996-07-10 1998-01-15 Siemens Ag Pressurized gas circuit breaker
JPH10223276A (en) * 1997-02-05 1998-08-21 Mitsubishi Electric Corp Contact device
DE10156535C1 (en) * 2001-11-14 2003-06-26 Siemens Ag breakers
DE102010062343A1 (en) 2010-12-02 2012-06-06 Siemens Aktiengesellschaft Electric contact arrangement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813683A (en) * 1955-02-04 1959-05-21 English Electric Co Ltd Improvements in and relating to gas-blast electric switchgear
BE445974A (en) * 1941-07-18
US2452221A (en) * 1945-08-27 1948-10-26 Pacific Electric Mfg Corp Fluid blast arc extinguishing circuit breaker
FR1307668A (en) * 1961-12-07 1962-10-26 Brown Pneumatic switch with nozzle contact
DE1197156B (en) * 1963-03-06 1965-07-22 Siemens Ag Gas pressure switch
FR1386073A (en) * 1963-03-22 1965-01-15 Siemens Ag Compressed gas circuit breaker
US3364327A (en) * 1965-01-21 1968-01-16 Westinghouse Electric Corp Compressed-gas circuit breaker with movable orifice contact and configured flow director about stationary contact assembly
CH470068A (en) * 1968-02-08 1969-03-15 Bbc Brown Boveri & Cie Gas pressure switch
FR2057152A5 (en) * 1969-08-01 1971-05-21 Merlin Gerin Contact breaker

Also Published As

Publication number Publication date
GB1394547A (en) 1975-05-21
NL173576C (en) 1983-09-01
US3789175A (en) 1974-01-29
CH544999A (en) 1974-01-15
DE2209287B2 (en) 1974-05-02
CH554596A (en) 1974-09-30
FR2172980B1 (en) 1976-05-14
FR2177804A2 (en) 1973-11-09
DE2215656B2 (en) 1978-07-27
FR2181860A2 (en) 1973-12-07
DE2220897B2 (en) 1975-10-30
US3854019A (en) 1974-12-10
FR2177804B2 (en) 1977-02-04
CH557591A (en) 1974-12-31
NL7217042A (en) 1973-08-24
FR2181860B2 (en) 1979-03-16
DE2215656C3 (en) 1979-04-05
DE2209287C3 (en) 1974-12-12
DE2220897A1 (en) 1973-11-08
FR2172980A1 (en) 1973-10-05
US3855437A (en) 1974-12-17
DE2209287A1 (en) 1973-09-06
DE2215656A1 (en) 1973-10-04
NL173576B (en) 1983-09-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee