US2824196A - Gas-blast circuit breaker with multiple break - Google Patents

Gas-blast circuit breaker with multiple break Download PDF

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Publication number
US2824196A
US2824196A US565738A US56573856A US2824196A US 2824196 A US2824196 A US 2824196A US 565738 A US565738 A US 565738A US 56573856 A US56573856 A US 56573856A US 2824196 A US2824196 A US 2824196A
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US
United States
Prior art keywords
units
blast
gas
air
disconnect
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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
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US565738A
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English (en)
Inventor
Thommen Hans
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 Germany
Original Assignee
Bbc Brown Boveri & Cie
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Publication date
Application filed by Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of US2824196A publication Critical patent/US2824196A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • H01H2033/146—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc using capacitors, e.g. for the voltage division over the different switches

Definitions

  • the driving shaft for the manipulation of the voltage insulation point can be led through the hollow insulator, constructed as a capacitor.
  • the driving length may be further diminished, when the capacitances and the service switch contacts are mutually arranged in an inclined relationship and the disconnect switch contacts are installed therebetween.
  • the capacitors it is also possible to use as a drive element the ohmic resistors provided for voltage regulation.
  • the insulators serving as parallel resistances are rotatably secured to the shaft for use as driving shafts for the disconnect switch contacts.
  • the motive power for the disconnect switch contacts can readily be effected by compressed air.
  • the supply line of compressed air for the service switch contacts and the disconnect switch contacts in a common main, and to divide the air main in close proximity to said points.
  • the feeding line becomes very short and passes, according to the invention, through the structural parts used for voltage regulation. Since the disconnect switch contacts may be manipulated only after complete disengagement of the service through the service switch contacts, the operation of the valve installed therefor must be delayed as compared with the operation of the valve for the service switch contacts. This delay must be suffi- 2,824,196 Patented Feb. 18, 1958 2 ciently great to open, the disconnect switch contacts during the application of the switch for the short disengagement (quick reclose) when the definite disengagement is completed.
  • a further diminution of the over-all length can also bc a ta nc i thatth arc ng is an es of the disconnec switch contacts are made only large enough to stand a voltage just slightly higher than that corresponding to the no mal op rating vcl age- Thus, for example. if ther a e a ailab e. voltage. insula n p s, the volt- 38. ShOhldv be Sl ghtly her than one-S t f h pert s ag on the switch.
  • Fig. 1 shows a gas-blast circuit breaker with air-blastinterrnpter units 1 and six voltage disconnect switches 2 (see also Fig. 4).
  • 3, designates a hollow control condenser, through which there is led a driving, shaft 4 by way of gear 5. to adisconnect switch 2.
  • the driving shaft 4 is driven by way of a further shift gear 6 by a, drivi11g. shaft 7 which is actuated outside of the switch by compressed. air, driving motor or manually by acrank handle-
  • the compressed air needed for the actuation of the air-blast interrupter unit 1 is taken, in known way, from a compressed: air tank 8 and supplied to the explosion chamber through a pin insulator 9.
  • the airblast interrupter unit 1 and a capacitance 3 are disposed in mutual angular. position, so that the arrangement of the disconnect switch. 2 affects only slightly the over-all length of the switch.
  • The. control resistances are designated at 10; in this example they are not connected with the motive power.
  • a rotary insulator 3 which serves as condenserand thus becomes a part of the motive power. The same is rotated by the driving shaft 7 by way of a bell crank 6.
  • the break jack of the disconnect switch 2 is. connected with. the control condenser 3 so that the break jack comes out when the control capacitance is rotated.
  • Fig. 3 shows another example wherein the ohmic resistances 10 are used for the drive of the disconnect switch 2.
  • the air-blast interrupter unit 1 is arranged horizontally in this case.
  • the condenser 3 is positioned in parallel thereto, separated by a pin insulator 11. Both are connected together by way of the disconnect switch 2. This latter is actuated by means of a shift-gear 12 with the help of the ohmic resistance.
  • Fig. 4 shows another arrangement wherein all the disconnect switches are driven by means of a common shaft 13; coupling rods 14 extend through hollow capacitors 3 to simultaneously operate all of the disconnect switches.
  • Fig. 5 shows an arrangement wherein the supply line of the compressed air for the disconnect switches is common to compressed air supply for the air-blast interrupter units.
  • the voltage insulation points are, in this case, actuated by compressed air.
  • valves 14 and 15 In close proximity there are arranged valves 14 and 15.
  • the valve 14 serves to control the actuation of the air-blast interrupter unit while valve 15 effects the actuation of the disconnect switch which is provided with a retarding device 16.
  • a multiple-break gas-blast circuit breaker having stationary air-blast interrupter units with rotatably movable structural impedance units electrically connected in parallel thereto and isolating disconnect switches electrically connected in series therewith, the invention comprising actuating means for opening the disconnect switches, said actuating means including said rotatably movable structural impedance units.
  • a multiple-break gas-blast circuit breaker comprising a plurality of stationary air-blast interrupter units, structural impedance units electrically connected in parallel with said interrupter units, said impedance units including control capacitors rotatably arranged at acute angles with respect to said air-blast interrupter units, isolating disconnect switches arranged between non-adjacent ends of said air-blast interrupter units and said control capacitors and being electrically connected in series with said air-blast interrupter units, means connect- I ing said rotatable control capacitors to said disconnect switches to cause said disconnect switches to open upon rotation of said capacitors, and means for rotating said capacitors.
  • a multiple-break gas-blast circuit'breaker comprising a plurality of stationary air-blast interrupter units, structural impedance units electrically connected in parallel with said interrupter units, said impedance units including resistors rotatably arranged substantially parallel to the air-blast interrupter units, isolating disconnect switches electrically connected in series with said interrupter units, means connecting said rotatable resistors to said disconnect switches to cause said disconnect switches to open upon rotation of said resistors, and means for rotating said resistors.
  • a gas-blast circuit breaker comprising a stationary,
  • a multiple-break gas-blast circuit breaker comprising a plurality of air-blast interrupter units, a plurality of impedance units electrically connected in parallel thereto, at least one of said impedance units being structurally hollow, isolating disconnect switches electrically connected in series with said interrupter units, valve means in said hollow impedance units for opening said disconnect switches, means for supplying compressed air from a common source to operate said interrupter units and to said hollow impedance units to operate said valve means, and means within said hollow impedance units for delaying the operation of the valves therein subsequent to the operation of said air-blast interrupter units.
  • a multiple-break gas-blast circuit breaker comprising a plurality of air-blast interrupter units, structural impedance units electrically connected in parallel to said interrupter units, said impedance units including hollow control capacitors arranged at acute angles with respect to said'air-blastinterrupter units, isolating disconnect switches electrically connected in series with said interrupter units, and means including a drive shaft extending through said hollow capacitors for opening said disconnect switches.
  • a multiple-break gas-blast circuit breaker comprising a plurality of vertical pin insulators mounted upon a support, each of said pin insulators having a plurality of air-blastinterrupterunits mounted thereon, structural impedance units electrically connected in parallel to said interrupter units, said impedance units including a plu- 'rality of colinearly arranged hollow control capacitors each arranged at an acute angle with respect to its associated air-blast interrupter unit, isolating disconnect switches electrically connected in series with said interrupter units, and means including a single drive shaft exextending through each of said hollow capacitors for opening all of said disconnect switches.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
US565738A 1955-02-16 1956-02-15 Gas-blast circuit breaker with multiple break Expired - Lifetime US2824196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2824196X 1955-02-16

Publications (1)

Publication Number Publication Date
US2824196A true US2824196A (en) 1958-02-18

Family

ID=4572058

Family Applications (1)

Application Number Title Priority Date Filing Date
US565738A Expired - Lifetime US2824196A (en) 1955-02-16 1956-02-15 Gas-blast circuit breaker with multiple break

Country Status (4)

Country Link
US (1) US2824196A (de)
CH (1) CH331003A (de)
DE (1) DE1018506B (de)
FR (1) FR1141320A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979591A (en) * 1958-09-19 1961-04-11 Westinghouse Electric Corp Circuit interrupters
US4223191A (en) * 1978-03-13 1980-09-16 Westinghouse Electric Corp. Upstanding mounting structure for high-voltage three-break live-module circuit-breaker
EP0721197A1 (de) * 1995-01-06 1996-07-10 Gec Alsthom T & D Sa Lastschalter mit zwei Löschkammern je Pol
FR2734399A1 (fr) * 1995-05-17 1996-11-22 Gec Alsthom T & D Sa Disjoncteur a deux chambres de coupure par pole a condensateurs d'equilibrage

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104022B (de) * 1957-10-14 1961-04-06 Zd Y V I Plzen N P Aus Baueinheiten zusammengestellter Druckgashoechstspannungsschalter
CH357780A (de) * 1958-03-08 1961-10-31 Bbc Brown Boveri & Cie Leistungsschalter mit Hilfsunterbrechnungsstelle
FR1237846A (fr) * 1959-06-24 1960-11-28 Merlin Gerin Perfectionnements aux disjoncteurs pneumatiques
DE1236052B (de) * 1960-10-26 1967-03-09 Continental Elektro Ind Ag Hochspannungsleistungsschalter mit mehreren in Reihe geschalteten Schaltstellen pro Pol
US3123698A (en) * 1961-02-10 1964-03-03 Circuit breakers having interrupting contacts
DE1248136B (de) * 1961-12-21 1967-08-24 Magrini Fab Riun Scarpa Unterbrechungsschalter fuer hohe und aeusserst hohe elektrische Spannungen
DE1173965B (de) * 1962-01-03 1964-07-16 Licentia Gmbh Druckgasschalter mit in freier Luft liegenden Trennstrecken
JPS5840715A (ja) * 1981-09-04 1983-03-09 株式会社東芝 しや断器
DE102017202735A1 (de) * 2017-02-21 2018-08-23 Siemens Aktiengesellschaft Elektrisches Schaltgerät

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US532838A (en) * 1895-01-22 Electric welding apparatus
US806009A (en) * 1904-06-15 1905-11-28 Ralph Scott Automatic motor-starting resistance.
US2419446A (en) * 1947-04-22 Electric circuit breaker
US2599100A (en) * 1942-05-29 1952-06-03 Asea Ab Compressed air circuit breaker with a plurality of series connected breaking gaps
US2658976A (en) * 1948-12-03 1953-11-10 Electrical Eng Equipment Co Air circuit interrupter
US2727055A (en) * 1952-12-13 1955-12-13 Standard Oil Co Catalytic synthesis of aromatic hydrocarbons from co and h2
US2748226A (en) * 1953-02-26 1956-05-29 Westinghouse Electric Corp Compressed-gas circuit interrupter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE457528A (de) * 1943-09-11
NL73206C (de) * 1948-07-23
DE850178C (de) * 1949-09-24 1952-09-22 Licentia Gmbh Elektrischer Leistungsschalter, insbesondere Druckgasschalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US532838A (en) * 1895-01-22 Electric welding apparatus
US2419446A (en) * 1947-04-22 Electric circuit breaker
US806009A (en) * 1904-06-15 1905-11-28 Ralph Scott Automatic motor-starting resistance.
US2599100A (en) * 1942-05-29 1952-06-03 Asea Ab Compressed air circuit breaker with a plurality of series connected breaking gaps
US2658976A (en) * 1948-12-03 1953-11-10 Electrical Eng Equipment Co Air circuit interrupter
US2727055A (en) * 1952-12-13 1955-12-13 Standard Oil Co Catalytic synthesis of aromatic hydrocarbons from co and h2
US2748226A (en) * 1953-02-26 1956-05-29 Westinghouse Electric Corp Compressed-gas circuit interrupter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979591A (en) * 1958-09-19 1961-04-11 Westinghouse Electric Corp Circuit interrupters
US4223191A (en) * 1978-03-13 1980-09-16 Westinghouse Electric Corp. Upstanding mounting structure for high-voltage three-break live-module circuit-breaker
EP0721197A1 (de) * 1995-01-06 1996-07-10 Gec Alsthom T & D Sa Lastschalter mit zwei Löschkammern je Pol
FR2734399A1 (fr) * 1995-05-17 1996-11-22 Gec Alsthom T & D Sa Disjoncteur a deux chambres de coupure par pole a condensateurs d'equilibrage

Also Published As

Publication number Publication date
CH331003A (de) 1958-06-30
FR1141320A (fr) 1957-08-30
DE1018506B (de) 1957-10-31

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