US1653086A - Electric switch - Google Patents

Electric switch Download PDF

Info

Publication number
US1653086A
US1653086A US624835A US62483523A US1653086A US 1653086 A US1653086 A US 1653086A US 624835 A US624835 A US 624835A US 62483523 A US62483523 A US 62483523A US 1653086 A US1653086 A US 1653086A
Authority
US
United States
Prior art keywords
contacts
switch
main
auxiliary
contact
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
US624835A
Other languages
English (en)
Inventor
Christensen Christen
Philip G Langley
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
Application filed by General Electric Co filed Critical General Electric Co
Priority to US624835A priority Critical patent/US1653086A/en
Priority to GB12368/23A priority patent/GB217013A/en
Priority to FR578243D priority patent/FR578243A/fr
Application granted granted Critical
Publication of US1653086A publication Critical patent/US1653086A/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
    • H01H33/16—Impedances connected with contacts

Definitions

  • Our invention relates to electric switches of the oil break type such as are used to control high potential circuits and which comprise a set of main switch contacts for normally carrying the load current and set of auxiliary explosion chamber contacts for making the final break of the circuit.
  • One object of our invention is to provide an arrangement in which an impedance is included in the connection between the mainv and its auxiliary star 1: contacts.
  • Another object is to provide for supporting the two sets of com-acts in the same oil tank in a manner to facilitate the introduc tion of the desired impedance between the aforesaid contacts.
  • a further object is to provide arrangement of main and auxiliary switch contacts whereby the gas produced by the one set of contacts shall not interfere with the proper functioning of the other set.
  • Figure l is a view illustrating our invention, partsv being broken away to more clearly show the construction.
  • Fig. 2 is a transverse sectional view of the same taken on the line 2-2 of Fig. 1.
  • an oil pot 1 having an insulating lining 2 and containing a quantity of oil 3 has a cover a carrying all of the switch terminals which are removable therewith.
  • Two insulator bushings 5, 5 carry conductors 6, 6 and are mounted in diametrically opposite openings in the cover, suitable clamping rings 7 being provided to secure them in a vertical position.
  • Each conductor 6 connects with a terminal 8 having a main contact 9 and an arcing contact 10.
  • the movable member of the switch comprises a bridging member having a pair of arms 11 extending in opposite directions from the center operating rod 12 and a second pair of arms 13 also extending in opposite directions from the operating rod 12 but atright angles to the arms 11.
  • suitable contact plates i l and 15 are provided for engagement with the main and arcing contacts 9 and 10 respectively.
  • the parts thus described constitute what may be termed the main switch and may be designed to provide whatever current carrying capacity is deeded;
  • each stationary contact 22 in this chamber is sup ported by a tube threaded into the base of the-inverted cup 1.9, the contact 22 being adapted to receive the rod constituting the mo *ablecontact of this switch.
  • the rous 2 1 are carried by the arms 13 and are of such length that the circuit between them and the stationary contacts is not broken until after the circuit is broken at its main switch.
  • each stationary contact 22 is electrically connect ed with one of the terminals 8 of the main switch.
  • This connection comprises straps 25 and 26 which are preferably of resistance material.
  • the initial downward movement of the operating rod 12 carries with it the bridging member and the arms 11 thereof first break contact with the terminals 8 of the main switch. There still remains a circuit connection be tween the terminals 8 through the auxiliary switch and the straps and 26.
  • the movable contact rods 24 of the auxiliary switch break the remaining shunt cir cuit in the explosion chambers 21.
  • An electric switch comprising a rccep tacle having a cover and :ulaptd to contain an insulating liquid, insulator bushings mounted in the cover, fixed contacts carried thereby, insulators depending from the cover and spaced laterally on opposite sides of .a line joining said insulator bushings,
  • an explosion chamber containing a fixed auxiliary contact supported by each insulator, impedance connecting each fixed main contact with a separate fixed auxiliary contact, a movable bridging member having main contacts for engaging the fixed main contacts and having laterally extending arms carrying movable auxiliary contacts, said latter contacts being arranged to disengage the fixed auxiliary contacts in the explosion chambers subsequently to the disengagement of the main contacts and said impedances being arranged in the receptacle beneath the liquid level.
  • An electric switch comprising a receptacle having a cover and adapted to contain an insulating liquid, insulator bushings mounted in the cover, fixed contacts carried thereby, insulators depending from the cover and spaced laterally on opposite sides of a line joining said bushings and at equal distances from the bushings, an explosion chamber contaii'iing a fixed auxiliary contact supported by each insulator, an impedance connecting each fixed main contact with a separate fixed auxiliary contact, a movable bride-ingmember having main contacts for 'ing the fixed contacts and having arms sliding laterally from opposite side thereot carrying movable auxiliary contacts, said latter contacts being arranged to disengage the fixed auxiliary contacts in the explosion chamber subsequently to thedisengagement of the main contacts.
  • CHRISTEN Crnnsrnm sm has hereunto set his hand this 2nd day of March, 1923, and PHILIP G.
  • LANGLEY has hereunto set his hand this 8th day of March,

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
US624835A 1923-03-13 1923-03-13 Electric switch Expired - Lifetime US1653086A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US624835A US1653086A (en) 1923-03-13 1923-03-13 Electric switch
GB12368/23A GB217013A (en) 1923-03-13 1923-05-08 Improvements in and relating to electric switches
FR578243D FR578243A (fr) 1923-03-13 1924-03-08 Perfectionnements aux interrupteurs électriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US624835A US1653086A (en) 1923-03-13 1923-03-13 Electric switch

Publications (1)

Publication Number Publication Date
US1653086A true US1653086A (en) 1927-12-20

Family

ID=10003240

Family Applications (1)

Application Number Title Priority Date Filing Date
US624835A Expired - Lifetime US1653086A (en) 1923-03-13 1923-03-13 Electric switch

Country Status (3)

Country Link
US (1) US1653086A (fr)
FR (1) FR578243A (fr)
GB (1) GB217013A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075060A (en) * 1957-10-30 1963-01-22 Westinghouse Electric Corp Circuit interrupters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075060A (en) * 1957-10-30 1963-01-22 Westinghouse Electric Corp Circuit interrupters

Also Published As

Publication number Publication date
FR578243A (fr) 1924-09-20
GB217013A (en) 1924-06-12

Similar Documents

Publication Publication Date Title
US2047000A (en) Electrical connecter unit for metal clad switch gears
ES332238A1 (es) Un dispositivo interruptor automatico para alta tension.
US3305657A (en) Circuit breaker for high power, high voltage networks
US1720566A (en) Circuit-controlling device
GB123064A (en) Improvements in Electrical-Discharge-Gap Apparatus.
US2083379A (en) Electrical switchgear
US2727105A (en) Sectionalizing switch gear
US3328648A (en) Combination plug-in block with current transformers
US2138284A (en) Circuit breaker
DK169649B1 (da) Højspændingshalvlederkontaktor
US2830254A (en) Current divider circuit for high current tap changing under load mechanism
SU1372404A1 (ru) Разъединитель
US1190886A (en) Electrolytic condenser or electrolytic valve.
US1190140A (en) Protective device.
US2249493A (en) Connection for electric condensers
US2634382A (en) Electric discharge device apparatus
GB1264299A (fr)
GB1462087A (en) Contact arrangements for electrical switches
US1361800A (en) Voltage-protective device
US1501270A (en) Condenser-type interrupter
US1912042A (en) Fluid filled switch
US2107947A (en) Electric switch gear
SU66061A1 (ru) Контактное устройство дл реле и т.п. приборов
US714436A (en) High-potential switch.
US1593434A (en) Electric switch