US2561191A - Compressed air circuit breaker with a plurality of series connected breaking gaps - Google Patents

Compressed air circuit breaker with a plurality of series connected breaking gaps Download PDF

Info

Publication number
US2561191A
US2561191A US2917A US291748A US2561191A US 2561191 A US2561191 A US 2561191A US 2917 A US2917 A US 2917A US 291748 A US291748 A US 291748A US 2561191 A US2561191 A US 2561191A
Authority
US
United States
Prior art keywords
compressed air
operating
circuit breaker
column
series connected
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
US2917A
Other languages
English (en)
Inventor
Forwald Haakon
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
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 ASEA AB filed Critical ASEA AB
Application granted granted Critical
Publication of US2561191A publication Critical patent/US2561191A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H33/04—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

Definitions

  • the present invention relates to a high voltage compressed air circuit breaker with a plurality of series connected breaking gaps, in which the breaking gaps are arranged in extinguishing chambers disposed along a central insulating cylinder column.
  • each extinguishing chamber comprises a breaking gap and an air operating cylinder for the movable contact of the breaking gap.
  • the chambers may easily be removed from the insulating column for inspection or repair and may be replaced by a spare chamber without disturbing the adjustment of the contacts in the spare chambers.
  • the operating cylinders are fed with operating air from the interior of the column or from a pipeline in it.
  • the operating air is in the first place controlled by a valve for each chamber which valves are actuated by an operating shaft, and in the second place a common control valve is provided for all chambers.
  • FIG. 1 shows a form of the invention, in which the operation takes place by means of a compressed air pipe line traversing the column and provided with branches to the different breaking gaps.
  • Fig. 2 the operation takes place by means of an insulating shaft in the column, which shaft acts on operating valves for the different breaking gaps.
  • FIG. 1 designates the base plate of a circuit breaker, on which the compressed air container 2 is arranged and on this container rests a column 3 and an insulator 4 for a disconnecting switch arranged outside the circuit breaker.
  • the different breaking gaps are arranged in extinguishing chambers 5, 6 and l which by means of metal pipes '8, 9 and ID are attached to the column 3 which consists of a lower insulator ll having thereon three further insulating cylinders I2, [3 and M, which are joined by means of metal joining members I5, I6 and I1.
  • the movable contacts in the extinguishing chambers are designated by I8, and 22 and the stationary contacts by I9, 2
  • the movable contacts are operated by pistons 27, 2B and 29, which move in operating cylinders 30, 3
  • the pipe line 36 is made of pipes of insulating material except on the points where the branching to the different operating cylinders takes place, where T-pieces of metal are inserted.
  • the upper cylinder I4 is closed at its upper end by a cover 38 which is metallically joined with the cap 26 by means of a joining member 39 and the caps 24 and 25 are joined with the metallic members It and I1 by means of metallic joining pieces 4!] and 4 I.
  • the compressed air is delivered to the column 3 and the operating valve 3? through a valve 42 and traverses the column 3 and the metal pipes 8, 9 and II] to the cylinders 5, 6 and 'l.
  • the control valve Bl is a three-way valve so designed that in one position the operating line 36 is put in communication with the external air, and in this case the pressure acting on the upper side of the pistons 2'1, '28 and 29 will move the pistons downwards so that the breaking gaps are opened.
  • the valve 31 is changed, so that air from the compressed air container 2 again is delivered to the pipe line 36.
  • the disconnecting switch which consists of the disconnecting switch arm 45 with its counter contact M, is operated by the operating insulating shaft 48.
  • FIG. 2 differs from the above only in that the delivery of compressed air to the different operating cylinders takes place by means of valves 58, 59 and 63, which are operated by an insulating shaft 5
  • the operating valves 58, 59 and 60 are so designed that in one position compressed air from the valve 42 is delivered to the pipe lines 33, 34 and 35, whereas in another position these lines are brought in direct communication with the external air at the points 53, 54 and 55.
  • a high tension compressed air circuit breaker comprising a central column of insulating cylinders, joining members between said insulating cylinders, a compressed air container, a pipeline between said air container and said insulating cylinder column, an extinguishing valve in said pipeline, extinguishin air chambers comprising movable contacts and stationary contacts laterally and dismountably secured to said column, hollow connecting members connecting the interior of said extinguishing chamhere with the interior of said insulating column, contact operating-cylinders in said extinguishing air chambers, contact operating pistons in said cylinders, a contact operating air pipeline in said column, pipes joining said operating cylinders with said operating air pipeline, and a contact operating air valve in said operating air pipeline,
  • a high tension compressed air circuit breaker comprisin a central column of insulating cylinders, joining members between said insulating cylinders, a compressed air containena pipeline between said air container and said insulating cylinder column, an extinguishing valve in said pipeline, extinguishing chambers comprising movable contacts and stationary contacts laterally and dismountably secured to said column, hollow connecting members connecting the interior of said extinguishing chambers with the interior of said insulating column, contact Number actuated by said shaft, and pipes joining the interior of said contact operating cylinders with the "interior of said column through said operating air valves.

Landscapes

  • Circuit Breakers (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
US2917A 1943-11-24 1948-01-17 Compressed air circuit breaker with a plurality of series connected breaking gaps Expired - Lifetime US2561191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE246540X 1943-11-24

Publications (1)

Publication Number Publication Date
US2561191A true US2561191A (en) 1951-07-17

Family

ID=20306057

Family Applications (1)

Application Number Title Priority Date Filing Date
US2917A Expired - Lifetime US2561191A (en) 1943-11-24 1948-01-17 Compressed air circuit breaker with a plurality of series connected breaking gaps

Country Status (6)

Country Link
US (1) US2561191A (xx)
BE (1) BE458203A (xx)
CH (1) CH246540A (xx)
DE (1) DE959203C (xx)
FR (1) FR909062A (xx)
GB (1) GB586244A (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447090A1 (fr) * 1979-01-16 1980-08-14 Hitachi Ltd Disposition et commande d'un disjoncteur haute tension blinde a gaz isolant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904577A (en) * 1930-04-04 1933-04-18 Gen Electric Gas blast circuit interrupter
US2291263A (en) * 1940-02-27 1942-07-28 Bbc Brown Boveri & Cie Multiple break gas blast circuit breaker
US2453555A (en) * 1943-09-11 1948-11-09 Bbc Brown Boveri & Cie Gas blast circuit breaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904577A (en) * 1930-04-04 1933-04-18 Gen Electric Gas blast circuit interrupter
US2291263A (en) * 1940-02-27 1942-07-28 Bbc Brown Boveri & Cie Multiple break gas blast circuit breaker
US2453555A (en) * 1943-09-11 1948-11-09 Bbc Brown Boveri & Cie Gas blast circuit breaker

Also Published As

Publication number Publication date
GB586244A (en) 1947-03-12
FR909062A (fr) 1946-04-29
CH246540A (de) 1947-01-15
BE458203A (xx)
DE959203C (de) 1957-02-28

Similar Documents

Publication Publication Date Title
US2686243A (en) Gas blast circuit breaker
US2290320A (en) Circuit breaker mechanism
US3075060A (en) Circuit interrupters
US3114815A (en) Fluid-blast circuit interrupter with improved current-transformer housing means
US2908788A (en) Arrangement in electric air blast circuit breakers
US2445529A (en) Circuit interrupter
GB489336A (en) Improvements in and relating to liquid-break electric circuit breakers
US2238567A (en) Circuit breaker
GB513619A (en) Improvements in and relating to liquid-blast electric circuit breakers
US2561191A (en) Compressed air circuit breaker with a plurality of series connected breaking gaps
US2729721A (en) High tension circuit breakers
US3043940A (en) Compressed-gas circuit interrupter
US2419446A (en) Electric circuit breaker
US3045086A (en) Circuit interrupters
US2531617A (en) Arrangement in compressed air circuit breakers
US2020475A (en) Electric switch
US2581571A (en) Circuit interrupter
US2413555A (en) Electric circuit interrupter
US2536270A (en) Fluid pressure operated circuit breaker
US3214541A (en) Fluid-blast circuit interrupter with straight-line driving mechanism
GB611388A (en) Improvements in or relating to electric circuit interrupters
US2999143A (en) Compressed-gas circuit interrupter
US2418739A (en) Circuit breaker operating system
GB1499106A (en) Actuating mechanism for vacuum interrupters
US2904660A (en) Air blast circuit breakers