US2665351A - Arrangement in air blast circuit breaker provided with damping resistance - Google Patents

Arrangement in air blast circuit breaker provided with damping resistance Download PDF

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Publication number
US2665351A
US2665351A US270170A US27017052A US2665351A US 2665351 A US2665351 A US 2665351A US 270170 A US270170 A US 270170A US 27017052 A US27017052 A US 27017052A US 2665351 A US2665351 A US 2665351A
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US
United States
Prior art keywords
contact
circuit breaker
valve
piston
air
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 - Lifetime
Application number
US270170A
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English (en)
Inventor
Forwald Haakon
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ABB Norden Holding AB
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ASEA AB
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Filing date
Publication date
Application filed by ASEA AB filed Critical ASEA AB
Application granted granted Critical
Publication of US2665351A publication Critical patent/US2665351A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic

Definitions

  • Circuit breakers of ture of this magnet is released the spring 21 this kind have thus been provided with a sepwill move the piston 29 in the cylinder 28 uparate member for connecting and disconnecting wards, and the rod 30 attached to this piston the resistance. will act on the stem 3
  • the present invention has for its 32.
  • the valve object to provide a device for such circuit breakdisc 33 will close the outlet from the operating ers in which the said connecting and disconvalve 32 and open a communication from the necting of the resistance is performed by means operating pipeline 34 of the on. of the same member that controls the flow of the pipeline 35 leading from a source of comcompressed air to the breaking gap. pressed air.
  • a circuit breaker When compressed air is supplied On the accompanying drawing one form of through the pipeline 34 it will et on th lower a circuit breaker according to the invention is surface of the piston 36 in the time lag memb shown.
  • On the drawing I designates a com- 31.
  • the piston then moves cuit breaker to pressed air container which is provided with a pressing the spring 38 and raising th stem at Wall 2 on which the movable contact of the ciruntil the latter acts on the ste 4
  • the lower end of the stem 46 1s at the connecting in of the resistance is mounted.
  • the point 39 pivotally connected to the piston 35 stationary contact of the circuit breaker is des- 25
  • the valve disc 43 in th ignated by 3 and is attached to the conductor upwards it closes the outl t 4 in an insulating bushing 5 projecting into the pressed air pipelin 44 t 013 compressed air container.
  • the movable contact tion from the cylinder I7, thro of the circuit breaker is designated by 6 and is 45, to the open air.
  • This cylinder is carried by an t ghtening ge 0, and the tubular contact I5 insulator I2 fastened in the wall of the concomes into contact with the yieldable contact tainer I, and the resistance 1 l is connected at M of the resistance ll.
  • Compressed air is preone end over a conductor l3 with the stationary 4o Vented from flowing to the right side of'the contact 3 of the circuit breaker.
  • the other end p ton I 6 by the back valve 54 which consists of the resistance H is provided with a contact of a Spring actuated ring forced against the M, which contact is suitably mounted in yieldholes 55, and said back valve 54 serves to maining relation to the resistance.
  • connection tain the container, to the r ght of said wall 2, of the resistance H in parallel to the contact 45 fill d With air under pressure.
  • pair 3 6 is effected by means ,f a tubular with the upward movement of the piston 35, a
  • operating pipeline I5 is provided With a valve disc I 9 which when device 37 is opened, and co its packing is forced against the annular formed e C mpressed air pipeline 3 ridge 20 blocks the escape of compressed air pipeline 4! to diaphragm t t valve from the container I.
  • the container 5 with. all When compressed air horn the pipeline 4! acts the parts attached to it is carried by an insun the diaphragm 49 and thus on the Valve disc lating pillar 2
  • the time lag device 31 has for its-object to close, after a predetermined time, the outlet yalvel is,
  • the press button 23 When closing thebircuit breaker the press button 23 is pressed and then a circuit is formed from the operating battery 24 through the solenoidi63.
  • the valve stem' in the valve s i is then moved upwards so that the outlet opening from the valve is closed by the valve disc 85, while the valve disc 66 leaves its seat, so that compressed air' from the pipeline 35' can fiow through the pipeline 5? to the cylinder 28 and there act on the piston 29, to move it downwards until theblrmature in the release magnet; 23 is again attracted.
  • the circuit breaker on the drawing is provided withonlyonemain breakinggap and one damping resistance with breaking contacts, it can of course also be provided with and two damping resistances coupled in parallel with them but with one air bla st or outlet valve for the two main breaking gaps, common for the two main breaking gaps-and further the outlet pipe l5 may be combreaking gaps disconnecting the damping resistances in that the tube I5 is provided with :a fork shaped part forming a contact bridge making contact with the two contacts I4.
  • An :air' blast circuit breaker comprising a .;,compressed air container, an insulating support for said container, a
  • a main breaking contact pair mountedin one of said com-pa'rtments'in close proximity to one of 's'aid openings, a damping resistance coupled in parallel with said contact pair, an aukiliarycontact pair connected in series with said darnping resistance and located in close proximity: to 'another of said openings, pneumatic means for operating said main and auxiliary breaking contacts, an outlet valve from the otherfcom partmerit, means connecting said valve with the movable contact of said auxiliary contact pair, a time lag device for the pneumatic operating means of said. movable auxiliary contact, and means whereby' said time lag device effects an .immediate closing but a delayed reopening of said auxiliary contact pair.
  • a circuit breaker according to claim 1 comprising an air operated piston for said time lag device, a stem pivoted “to said piston, an operating valve for the auxiliary contact pair, a stem extending from said operatingvalve in alignment with the said pivoted stem, a delayed air operated device for moving said pivoted stem out 'of alignment with said valve stem, and a spring for returning said pivoted stem to the aligned position.
  • An air blast circuit breaker comprising a compressed air container, an insulating support for said'cont'a iner, a wall dividing'the container into two compartments, an opening in saidwall', a fixed main contact in one of'sa'id compartments, a main'tubular movable contact extend-i ingthrough said opening and providing communication between said compartments, a' second opening in said wall, a'fiiied auxiliary contact, a movable tubular auxiliary contact mounted in said second opening" and providing communication' between said compartments, a damping resistance connected in -parallel with the main contact pair andin series'with the auxiliary'contact pair, a valve carried by said auxiliary movable contact for controlling the escape of tompressed air from said compartments, and a time lag device for the operation of saidmovablefaukiliary contact, said device including means for efiecting an immediate closing but a dlayed'reopening of said auxiliary contact pair.
  • a circuit breaker according to claim ⁇ comprising a cylinder carried. by said wall, a piston in said. cylinder actuated by spring and pneumatic means and carrying said tubular auxiliary Contact, restricted channels for the passage of compressed air through said piston from one of said compartments to one end of the cylinder to move said piston and to close said auxiliary contact pair, and a back valve for controlling the fiow of air between said cylinder and one of said compartments.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
US270170A 1951-02-09 1952-02-06 Arrangement in air blast circuit breaker provided with damping resistance Expired - Lifetime US2665351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE299851X 1951-02-09

Publications (1)

Publication Number Publication Date
US2665351A true US2665351A (en) 1954-01-05

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ID=20307399

Family Applications (1)

Application Number Title Priority Date Filing Date
US270170A Expired - Lifetime US2665351A (en) 1951-02-09 1952-02-06 Arrangement in air blast circuit breaker provided with damping resistance

Country Status (5)

Country Link
US (1) US2665351A (de)
CH (1) CH299851A (de)
DE (1) DE960739C (de)
FR (1) FR1050658A (de)
GB (1) GB700491A (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783338A (en) * 1955-09-21 1957-02-26 Gen Electric Operating mechanism for a fluid-blast circuit breaker
US2783337A (en) * 1953-12-10 1957-02-26 Gen Electric Fluid blast circuit interrupter
US2786119A (en) * 1954-02-17 1957-03-19 Asea Ab Valve arrangement for air blast circuit breakers
US2786117A (en) * 1954-02-17 1957-03-19 Asea Ab Air blast circuit breaker with parallel resistances
US2794886A (en) * 1954-03-02 1957-06-04 British Thomson Houston Co Ltd Electric circuit breakers of the air or gas-blast type
US2803724A (en) * 1954-06-04 1957-08-20 Asea Ab Operating device for air blast circuit breakers
US2833896A (en) * 1954-11-24 1958-05-06 British Thomson Houston Co Ltd Electric circuit breakers of the air or gas-blast type
US2908788A (en) * 1956-04-14 1959-10-13 Asea Ab Arrangement in electric air blast circuit breakers
US2962570A (en) * 1958-06-28 1960-11-29 Bbc Brown Boveri & Cie Electric switch
US2965735A (en) * 1956-06-07 1960-12-20 Westinghouse Electric Corp Compressed-gas circuit interrupter
US2969446A (en) * 1957-02-01 1961-01-24 Asea Ab Air blast circuit breakers
US2972666A (en) * 1957-06-29 1961-02-21 Asea Ab Air blast circuit breakers with breaking gaps in compressed air containers carried by insulator pillars
US2977446A (en) * 1956-10-22 1961-03-28 Westinghouse Electric Corp Compressed-gas circuit interrupter
US3014111A (en) * 1958-11-24 1961-12-19 Asea Ab Pneumatic operating means for circuit breakers
US3043940A (en) * 1958-01-10 1962-07-10 Westinghouse Electric Corp Compressed-gas circuit interrupter
US3065322A (en) * 1960-12-20 1962-11-20 Gen Electric Gas blast circuit breaker
US3075060A (en) * 1957-10-30 1963-01-22 Westinghouse Electric Corp Circuit interrupters
US3143622A (en) * 1960-10-28 1964-08-04 Westinghouse Electric Corp Arc-extinguishing unit and contact structure for a circuit interrupter
US3163737A (en) * 1960-03-23 1964-12-29 English Electric Co Ltd Gas blast circuit breaker and operating means therefor
US3167630A (en) * 1959-06-02 1965-01-26 English Electric Co Ltd Multi-break gas blast circuit breaker and operating means therefor
US3264440A (en) * 1963-04-10 1966-08-02 Asea Ab Air blast circuit breaker
US3334207A (en) * 1962-07-05 1967-08-01 Bbc Brown Boveri & Cie Gas blast circuit-breaker with stationary spaced tubular contacts and piston actuated contact bridge including blast valve actuated thereby
US3433913A (en) * 1965-07-28 1969-03-18 Westinghouse Electric Corp Gas-blast circuit interrupter
US3435166A (en) * 1965-11-16 1969-03-25 Gen Electric Gas blast circuit breaker with improved resistor switch
US3553395A (en) * 1969-01-21 1971-01-05 Westinghouse Electric Corp Vacuum switch operating mechanism with plural dashpot controller means
US3655935A (en) * 1969-03-14 1972-04-11 Coq Nv Gas pressure damper means for a circuit breaker mechanism

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1020397B (de) * 1954-06-04 1957-12-05 Asea Ab Mehrphasiger Druckluftschalter
DE1041569B (de) * 1955-10-05 1958-10-23 Asea Ab Druckluftschalter
GB884854A (en) * 1957-07-01 1961-12-20 Ass Elect Ind Improvements in air or gas blast electric circuit-breakers
DE1086780B (de) * 1957-11-27 1960-08-11 Continental Elektro Ind Ag Druckgasschalter
DE1100761B (de) * 1958-02-21 1961-03-02 Continental Elektro Ind Ag Hochspannungsdruckluftschalter
DE1221333B (de) * 1960-02-10 1966-07-21 Bbc Brown Boveri & Cie Steuerventil fuer den Druckluftzufluss zu den Schaltkammern von Druckluftschaltern
DE1163940B (de) * 1960-02-25 1964-02-27 Asea Ab Druckluftschalter mit reihengeschalteter Trennstelle in einer Durchfuehrung
DE1203855B (de) * 1960-02-27 1965-10-28 Asea Ab Vorrichtung zur Bremsung der OEffnungsbewegung der beweglichen Kontaktes eines Druckluftschalters
DE1177713B (de) * 1960-08-10 1964-09-10 Siemens Ag Elektrischer Schalter fuer Wechselstrom
CH386530A (de) * 1960-09-07 1965-01-15 Asea Ab Druckluftschalter mit einem auf Hochspannungspotential angeordneten, ständig mit Druckluft gefüllten Behälter
BE625691A (de) * 1961-12-07
DE1194951B (de) * 1962-05-22 1965-06-16 Continental Elektro Ind Ag Pneumatische Steuereinrichtung fuer elektrische Hochspannungs-Druckgasschalter
CH410109A (de) * 1964-07-13 1966-03-31 Bbc Brown Boveri & Cie Kontakteinrichtung für Druckgasschalter
CH410112A (de) * 1964-08-21 1966-03-31 Bbc Brown Boveri & Cie Druckgasschalter
US3290469A (en) * 1964-09-30 1966-12-06 Westinghouse Electric Corp Compressed-gas circuit interrupter having cavitation means

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153400A (en) * 1936-12-14 1939-04-04 Gen Electric Electrical switch gear
GB591741A (en) * 1944-05-20 1947-08-27 Asea Ab Compressed air blast circuit breakers with parallel resistance
GB611775A (en) * 1946-05-08 1948-11-03 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE647141C (de) * 1933-08-01 1937-06-29 Bbc Brown Boveri & Cie Elektrischer Schalter
NL73206C (de) * 1948-07-23

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153400A (en) * 1936-12-14 1939-04-04 Gen Electric Electrical switch gear
GB591741A (en) * 1944-05-20 1947-08-27 Asea Ab Compressed air blast circuit breakers with parallel resistance
GB611775A (en) * 1946-05-08 1948-11-03 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783337A (en) * 1953-12-10 1957-02-26 Gen Electric Fluid blast circuit interrupter
US2786119A (en) * 1954-02-17 1957-03-19 Asea Ab Valve arrangement for air blast circuit breakers
US2786117A (en) * 1954-02-17 1957-03-19 Asea Ab Air blast circuit breaker with parallel resistances
US2794886A (en) * 1954-03-02 1957-06-04 British Thomson Houston Co Ltd Electric circuit breakers of the air or gas-blast type
US2803724A (en) * 1954-06-04 1957-08-20 Asea Ab Operating device for air blast circuit breakers
US2833896A (en) * 1954-11-24 1958-05-06 British Thomson Houston Co Ltd Electric circuit breakers of the air or gas-blast type
US2783338A (en) * 1955-09-21 1957-02-26 Gen Electric Operating mechanism for a fluid-blast circuit breaker
US2908788A (en) * 1956-04-14 1959-10-13 Asea Ab Arrangement in electric air blast circuit breakers
US2965735A (en) * 1956-06-07 1960-12-20 Westinghouse Electric Corp Compressed-gas circuit interrupter
US2977446A (en) * 1956-10-22 1961-03-28 Westinghouse Electric Corp Compressed-gas circuit interrupter
US2969446A (en) * 1957-02-01 1961-01-24 Asea Ab Air blast circuit breakers
US2972666A (en) * 1957-06-29 1961-02-21 Asea Ab Air blast circuit breakers with breaking gaps in compressed air containers carried by insulator pillars
US3075060A (en) * 1957-10-30 1963-01-22 Westinghouse Electric Corp Circuit interrupters
US3043940A (en) * 1958-01-10 1962-07-10 Westinghouse Electric Corp Compressed-gas circuit interrupter
US2962570A (en) * 1958-06-28 1960-11-29 Bbc Brown Boveri & Cie Electric switch
US3014111A (en) * 1958-11-24 1961-12-19 Asea Ab Pneumatic operating means for circuit breakers
US3167630A (en) * 1959-06-02 1965-01-26 English Electric Co Ltd Multi-break gas blast circuit breaker and operating means therefor
US3163737A (en) * 1960-03-23 1964-12-29 English Electric Co Ltd Gas blast circuit breaker and operating means therefor
US3143622A (en) * 1960-10-28 1964-08-04 Westinghouse Electric Corp Arc-extinguishing unit and contact structure for a circuit interrupter
US3065322A (en) * 1960-12-20 1962-11-20 Gen Electric Gas blast circuit breaker
US3334207A (en) * 1962-07-05 1967-08-01 Bbc Brown Boveri & Cie Gas blast circuit-breaker with stationary spaced tubular contacts and piston actuated contact bridge including blast valve actuated thereby
US3264440A (en) * 1963-04-10 1966-08-02 Asea Ab Air blast circuit breaker
US3433913A (en) * 1965-07-28 1969-03-18 Westinghouse Electric Corp Gas-blast circuit interrupter
US3435166A (en) * 1965-11-16 1969-03-25 Gen Electric Gas blast circuit breaker with improved resistor switch
US3553395A (en) * 1969-01-21 1971-01-05 Westinghouse Electric Corp Vacuum switch operating mechanism with plural dashpot controller means
US3655935A (en) * 1969-03-14 1972-04-11 Coq Nv Gas pressure damper means for a circuit breaker mechanism

Also Published As

Publication number Publication date
CH299851A (de) 1954-06-30
DE960739C (de) 1957-03-28
GB700491A (en) 1953-12-02
FR1050658A (fr) 1954-01-11

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