US1947224A - Circuit interrupting apparatus - Google Patents

Circuit interrupting apparatus Download PDF

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Publication number
US1947224A
US1947224A US395412A US39541229A US1947224A US 1947224 A US1947224 A US 1947224A US 395412 A US395412 A US 395412A US 39541229 A US39541229 A US 39541229A US 1947224 A US1947224 A US 1947224A
Authority
US
United States
Prior art keywords
arc
chamber
contact
chambers
partition
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
US395412A
Other languages
English (en)
Inventor
William E Paul
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.)
General Electric Co
Original Assignee
General Electric Co
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 to BE373643D priority Critical patent/BE373643A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US395412A priority patent/US1947224A/en
Priority to DEA69840D priority patent/DE595621C/de
Priority to FR702489D priority patent/FR702489A/fr
Priority to GB28918/30A priority patent/GB364031A/en
Priority to FR41841D priority patent/FR41841E/fr
Application granted granted Critical
Publication of US1947224A publication Critical patent/US1947224A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/02—Installations within mirrors, pictures, furniture or other household articles
    • 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
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow

Definitions

  • a further object of my invention is the proopening movement of the switch so as to eiect a blast of insulating or arc extinguishing fluid transversely of another arc immediately upon its formation subsequent to the initial arc.
  • a further object of my invention is the provision of means for absorbing excess energy developed by the initial arc and for subsequently releasing or returning this energy to aid in the projection of insulating iluid transversely across the other arc.
  • a duid-break switchv comprising a movable bridging member 1, having mounted at its opposite ends thecontact rods 2 and 3.
  • the contact rods 2 and 3 are guided by the bushing :c5 members 4 and 5 for central longitudinal movement with respect to the cylindrical housing structures -6 and 'I which may be of conducting material and electrically connected to the usual lead-in conductor studs 8 and 9.
  • Mounted within and at the lower end of each of the housings 6 and 7 is a stationary contact 10 adapted to receive and electrically contact with its cooperating rod contact when the same has been moved to its lower circuit closingposition by the bridging 55 member l.
  • the main current carrying movable contacts l1 and 12 are mounted on the bridging member 1 to coact with the' stationary contacts 1K3 and '14 in a well-known manner. 1
  • the partition 15 is likewise provided with an aperture o1' opening 21, thereby permitting communication between a. lower chamber in which the stationary contact is disposed and the space above the partition 15.
  • Ay second partition member 22- is spaced from and disposed above the partition 15 tol form a second chamber, and is provided with 'a central opening for receiving the lower 80 end of the insulating guide or sleeve 23 within which the movable contact rod 2 is disposed.
  • the partition 22 permits communication between the second chamber and the space above said partition byV means of an aperture 24.
  • a second arc hereinafter referred to as the main are, will be drawn between the conducting members and the contact rod.
  • the opening 24 in the partition 22 exhausts at a comparatively ⁇ lov.1 pressure into the upper part of the housing 6, so that the 'pressure developed by the initial arc is eiective to direct a cooling stream, or blast, of the insulating iiuid transversely of and across the main arc immediately upon formation thereof and upwardly through aperture 24 into the ⁇ low pressure space.
  • each compression chamber comprises a piston-like element 27, normally biased by a spring 28 to seat at the* lower end of the chamber. Vents 29 in the upper part of the chambers may be provided, if desired. Accordingly, excessive pressure developed in the lower chamber may be temporarily relieved or stored within the expansion chambers 25 and 26 by reason of the compression of the springs and the air cushion at the upper end of the chambers.
  • the initial upward or opening movement of the bridging member 1 will be effective to draw an initial arc between a contact 10 and its movable contact member.
  • a sudden high pressure is developed within the lower chamber arc between the trap-door andthe contact rod as sustained by the energy which has returned from the expansion chambers, causes a strong blast of the insulating nuid to be directed across the main arc within the upper chamber, and to exhaust by way of aperture 24 into the upper part o1' the housing.
  • Circuit interrupting apparatus comprising l stationary and movable contacts, an insulating partition through which the movable contact is withdrawn from the stationary contact, said partition deiining upper and lower chambers in one of which the stationary contact is mounted, metallic conducting means resiliently biased so as to close the opening in said partition through which the movable contact is withdrawn subsequent to said withdrawal, and means directing the pressure developed by the initial part of the arc in e stationary contact chamber to efl'ect a blast of extinguishing fluid from the last-named chamber across the arc between said metallic closing means and the movable contact in the other chamber.
  • arc-interrupting means comprising a casing, a partition dividing the casing into chambers, a fixed contact disposed in one oi said chambers, a coacting movable contact adapted to be withdrawn through said partition lto its open position, and metallic closure members normally biased to a position covering the opening in said partition through which-the movable contact is withdrawn, said closure members covering said opening subsequent to withdrawal of the movable contact thereby dividing the arc into sections, said partition being provided with an aperture so that the pressure due to arcing between the iixed contact and metallic of arc extinguishing iiuid from. the fixed contact chamber transversely through the other chamber and across the arc formed between said closure members and the movable contact.
  • closure members is effective to direct a blast 3.111 a fluid-break switch
  • arc interrupting 150 means comprising a casing, a partition dividing the casing into chambers, a nxed contact disposed in one oi' said chambers, a coacting movable contact adapted to be withdrawn through said partition to its open position, and a pair ot members o i' conducting material normally biased towards each other to close the opening in the partition through which the movable contact is withdrawn whereby the arc drawn between the separating contact is divided into sections, said .partition having anaperture permitting uid communicaon between the ilxed contact'chamber and a second chamber, said second chamber having an exhaust opening arranged so that the pressure developed by the arc in said xed contact chamber is effective to force a stream o! insulating fluid transversely across the arc in said second chambers prior to ow throughsaid exhaust opening.
  • a pressure chamber containing an arc extinguishing liquid means forming a pressure generating arc within said'chamber, means directing an arc-extinguishing blast of said liquid ⁇ from said chamber, and an expansion chamber including a piston biased in. opposition to pressure in said "chamber in communication with saidY lpressure chamber for storing energy generated by said arc, said stored energy sustaining said blast o! insulating ⁇ liquid.
  • arc-interrupting means comprising a casing, an insulating partition dividing said casing into upper and lower chambers, astationary contact disposed in the llower-chamber, acoacting movable rod contact adapted to be withdrawn through an opening inthe partition and into said upper chamber, conducting closure means adapted to close said opening after the movable contact is withdrawn wherespring-biased piston in communication with the ⁇ in the upper chamber.r
  • am extinguishing apparatus comprising a casing, relatively mov- J'able contacts therein, aninsulating structure dividing said casing into chambers, said structure having an opening for separation of said contacts within said chambers, and conducting gate meml bers mounted on said structure operable to close said opening during separation of said contacts dividing the resulting arc ⁇ into sections within said chambers respectively, said structure likewise having apertures other than said opening for ⁇ directing a blast of insulating liquid'from one ofv said chambers and transverselyracross a main arcfin anotherchamber'prior to exhaust from said last-named chamber.
  • An electric circuit interrupter comprising a casing including insulating structure forming chambers therein, a pair of relatively movable contactsiarranged to separate within said casing so as to drawan arc successively through said chambers, means partially cpnning the pressure generated by an initial part of the arc in one of said chambers, and Ymeans directing said pressure so as to cause a blast of arc extinguishing liquid from said last-named chamber through and transversely of a second chamber to exhaust from said second chamber, said blast traversing completely theY arc in said second chamber prior to exhaust therefrom.
  • An electric circuit interrupter comprising a casing including insulating structure forming a plurality of interconnecting chambers therein, a fixed contact mounted within one ot said chambers, a movable rodcontact coacting with said fixed contact so as to draw,an arc successively through said chambers upon opening' of the circuit, means partially conti/ning the arcing pressure within said iixed contact chamber upon initial separation of said contacts and means directing said pressure so as to cause a blast oi' arc-extinguishing liquid from said xed contact chamber through and transversely of a second chamber adjacent thereto to exhaust from said chamber, said blast traversing completely the.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US395412A 1929-09-26 1929-09-26 Circuit interrupting apparatus Expired - Lifetime US1947224A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE373643D BE373643A (enrdf_load_stackoverflow) 1929-09-26
US395412A US1947224A (en) 1929-09-26 1929-09-26 Circuit interrupting apparatus
DEA69840D DE595621C (de) 1929-09-26 1930-09-21 Elektrischer Fluessigkeitsschalter, insbesondere OElschalter, mit mehreren in Serie geschalteten Unterbrechungsstellen
FR702489D FR702489A (fr) 1929-09-26 1930-09-24 Perfectionnements aux appareils de coupure de circuit dans l'huile
GB28918/30A GB364031A (en) 1929-09-26 1930-09-26 Improvements in and relating to electric circuit breakers
FR41841D FR41841E (fr) 1929-09-26 1932-05-13 Perfectionnements aux appareils de coupure de circuit dans l'huile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US395412A US1947224A (en) 1929-09-26 1929-09-26 Circuit interrupting apparatus

Publications (1)

Publication Number Publication Date
US1947224A true US1947224A (en) 1934-02-13

Family

ID=23562916

Family Applications (1)

Application Number Title Priority Date Filing Date
US395412A Expired - Lifetime US1947224A (en) 1929-09-26 1929-09-26 Circuit interrupting apparatus

Country Status (5)

Country Link
US (1) US1947224A (enrdf_load_stackoverflow)
BE (1) BE373643A (enrdf_load_stackoverflow)
DE (1) DE595621C (enrdf_load_stackoverflow)
FR (1) FR702489A (enrdf_load_stackoverflow)
GB (1) GB364031A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440995A (en) * 1943-08-09 1948-05-04 Gen Electric Electric circuit breaker
US3132226A (en) * 1960-12-09 1964-05-05 Gen Electric Oil filled fuse cutout with arc interrupting means
US3405325A (en) * 1964-11-07 1968-10-08 Calor Emag Elek Zitats Ag High tension switching station
CN110470046A (zh) * 2019-06-27 2019-11-19 上海浩泽诺瑞空气净化设备有限公司 一种定频空调机组固定装置及固定方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757995C (de) * 1937-07-19 1953-04-16 Siemens Schuckertwerke A G Hochleistungsschalter
DE757996C (de) * 1937-07-20 1953-02-02 Siemens Schuckertwerke A G Hochleistungsschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440995A (en) * 1943-08-09 1948-05-04 Gen Electric Electric circuit breaker
US3132226A (en) * 1960-12-09 1964-05-05 Gen Electric Oil filled fuse cutout with arc interrupting means
US3405325A (en) * 1964-11-07 1968-10-08 Calor Emag Elek Zitats Ag High tension switching station
CN110470046A (zh) * 2019-06-27 2019-11-19 上海浩泽诺瑞空气净化设备有限公司 一种定频空调机组固定装置及固定方法
CN110470046B (zh) * 2019-06-27 2021-03-30 孙敏婕 一种定频空调机组固定装置及固定方法

Also Published As

Publication number Publication date
DE595621C (de) 1934-04-17
FR702489A (fr) 1931-04-09
GB364031A (en) 1931-12-28
BE373643A (enrdf_load_stackoverflow)

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