GB1264756A - - Google Patents

Info

Publication number
GB1264756A
GB1264756A GB1264756DA GB1264756A GB 1264756 A GB1264756 A GB 1264756A GB 1264756D A GB1264756D A GB 1264756DA GB 1264756 A GB1264756 A GB 1264756A
Authority
GB
United Kingdom
Prior art keywords
contact
cylinder
fixed
contacts
march
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
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 filed Critical
Publication of GB1264756A publication Critical patent/GB1264756A/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

Abstract

1,264,756. Gas blast circuit breakers. SIEMENS A.G. 16 March, 1970 [14 March, 1969], No. 12597/70. Heading H1N. A circuit breaker has two relatively movable contacts one at least of which is hollow, receiving the other in sliding contact, and having an arc quenching medium compressed by a cylinder and piston arrangement, during the opening operation and before the contacts open, to substantially at least 40% of the original volume. In Fig. 2, the closed and open positions are shown on the right and left respectively of the central axis of chamber 1 containing SF 6 under pressure and supporting a fixed hollow contact 2. A movable contact 3 is connected to metal blast cylinder 4 actuated by a drive rod (5) via inertial mass 35. Insulating nozzle arrangement 8 is connected to the cylinder, the rim of the nozzle defining with the arcing tip 10 of the contact 3 an annular clearance (11). Parallel contact fingers 14 bear, in the closed position, against the outside of the cylinder forming a parallel current path which is broken before the separation of the main contacts. The cylinder slides on a fixed piston 17 and metal spacer 32. The axial length of the sliding contact surface between contact 3 and the fixed contact 2 is substantially half the total stroke of the contact 3. In Fig. 1 (not shown), the contact 2 is solid and the nozzle arrangement not tapered.
GB1264756D 1969-03-14 1970-03-16 Expired GB1264756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691913969 DE1913969C3 (en) 1969-03-14 1969-03-14 High voltage circuit breaker

Publications (1)

Publication Number Publication Date
GB1264756A true GB1264756A (en) 1972-02-23

Family

ID=5728651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1264756D Expired GB1264756A (en) 1969-03-14 1970-03-16

Country Status (5)

Country Link
JP (1) JPS51710B1 (en)
CH (1) CH494467A (en)
DE (1) DE1913969C3 (en)
FR (1) FR2038939A5 (en)
GB (1) GB1264756A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441561A1 (en) * 1973-08-31 1975-04-03 Hitachi Ltd SWITCHING PART OF A COMPRESSED GAS SWITCH WITH BLOWING OUT THE ARC WITH COMPRESSED GAS
US11915888B2 (en) 2020-06-30 2024-02-27 Hitachi Energy Ltd Hybrid current path for circuit breakers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122183A1 (en) * 1971-04-30 1972-11-16 Siemens AG, 1000 Berlin u. 8000 München Blow piston switch
FR2496334A1 (en) * 1980-12-16 1982-06-18 Merlin Gerin Crank operated contact rod for circuit breaker - uses crank and connecting rod linkage with connecting rod end running in guides to maintain linear motion
DE3242467C2 (en) * 1982-11-02 1986-06-05 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Auto-pneumatic pressure gas switch
DE8711961U1 (en) * 1987-09-01 1988-12-29 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
SE9402970L (en) * 1994-09-05 1996-03-06 Asea Brown Boveri High Voltage Circuit Breakers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL71901C (en) * 1948-04-06
DE1185270B (en) * 1961-03-02 1965-01-14 Calor Emag Elektrizitaets Ag Electrical switch with arc extinguishing through a flow of extinguishing agent
DE1540544A1 (en) * 1965-09-10 1970-01-02 Siemens Ag Gas pressure switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2441561A1 (en) * 1973-08-31 1975-04-03 Hitachi Ltd SWITCHING PART OF A COMPRESSED GAS SWITCH WITH BLOWING OUT THE ARC WITH COMPRESSED GAS
US11915888B2 (en) 2020-06-30 2024-02-27 Hitachi Energy Ltd Hybrid current path for circuit breakers

Also Published As

Publication number Publication date
DE1913969A1 (en) 1970-09-24
CH494467A (en) 1970-07-31
DE1913969B2 (en) 1976-01-29
FR2038939A5 (en) 1971-01-08
DE1913969C3 (en) 1980-05-08
JPS51710B1 (en) 1976-01-10

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Legal Events

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