US1696604A - Fluid-break switch - Google Patents

Fluid-break switch Download PDF

Info

Publication number
US1696604A
US1696604A US40937A US4093725A US1696604A US 1696604 A US1696604 A US 1696604A US 40937 A US40937 A US 40937A US 4093725 A US4093725 A US 4093725A US 1696604 A US1696604 A US 1696604A
Authority
US
United States
Prior art keywords
contact
switch
dash pot
fluid
liquid
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
US40937A
Other languages
English (en)
Inventor
John D Hilliard
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 claimed from US548155A external-priority patent/US1696570A/en
Priority to FR564384D priority Critical patent/FR564384A/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US40937A priority patent/US1696604A/en
Application granted granted Critical
Publication of US1696604A publication Critical patent/US1696604A/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
    • 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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches

Definitions

  • My invention relates t of the fluid break type an TES 1,696,604 PATENT OFFICE.
  • an object of my invention is to provide an lmproved switch of this character wherein the greater acceleration in ment of the switch.
  • invention is the provision 0 switch for decel after the arc is bro a division of my rial No. 548,155,
  • stationary contact contact 5 co-operates to control
  • the stationary con nected with the con suitable insula At thebottom of the conta contact 5 is adapted to operate insulating bushing of the container.
  • the container is partition 7 extending same into a lower
  • the hollow cylin- 8 is carried centrally by the d within this member moves argement 9 on the contact 5.
  • tact 4 is electrically container 3 but the movable through an at the top
  • the purpose of this construction is to impart to the very high velocity u movable contact of the switch a nder the influence of the pressure created at the separation of the con--
  • the function of the disk 9 is tooflfer a large surface to the fluid under tacts.
  • dash pot 1O submerged pressure so ll be moved with a I have proin the insu lating liquid in the casing 3.
  • This dash pot as shown is insulator 6 and is adapt largement 9 after it ha tance mounted on the lowe between the member 8 an 1' end of the ed to receive the ens traversedthe disd the lower formed end of the dash pot.
  • this dash pot may be embodied in a variety of forms. In the form illustrated I have shown 1t as a cup-shaped member having a central opening 11 which decreases somewhat in diameter from its lower end.
  • I also have provided openings 12 through the walls of the cup-shaped member to provide a passage for the liquid as the enlargement 9 moves in the dash pot. It will be noted that by reason ofthe taper of the opening in the dash pot and by reason of the openings 12 in the walls thereof the resistance offered to the passage of the enlargement in the dash pot increases in proportion to the distance it has traversed from the lower end thereof.
  • a switch comprising a casing adapted to contain insulating liquid, a fixed contact mounted at one end of the casing, a contact rod mountedto slide'in the opposite end of the casing and having an enlarged interme-- diate portion, and a partition in the casing having a cylindrical opening for receiving the enlarged portion of the contact rod.
  • a switch comprising a casing adapted to contain insulating liquid, a fixed contact at one end thereof, a contact rod movable through the opposite end thereof, said rod having a piston like enlargement and spaced cylindrical members in said casing arranged successively to receive said enlargement during the open circuit movement of the contact rod whereby pressure on one side of the enlargement produced at the initial separation of the contacts accelerates the opening movement of the switch and pressure on the opposite side of the enlargement subsequently decelerates said movement.
  • a switch comprising a casing adapted to contain an insulating liquid, a fixc 1 contact mounted at one end of the casing, a dash pot in the casing, a partition therein between the dash pot and the fixed contact having a central opening therein and a movable contact rod having an enlarged portion forming a piston adapted when the switch is opened to pass through said opening and subsequently enter said dash pot.
  • said second contact being formed with a surface arranged to be subject to the subject to the ated by the are formed at the separation of eaaeoa pressure within said liquid created by the are formed at the separation of said contacts whereby a high velocity is imparted to said second contact, said second contact being also provided with means adapted to cooperate with said dash pot whereby said latter contact may be subsequently means within said receptacle for causing the liquid to be forced into the path of the arc during the separation of said contacts.

Landscapes

  • Insulators (AREA)
US40937A 1922-03-30 1925-07-01 Fluid-break switch Expired - Lifetime US1696604A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR564384D FR564384A (fr) 1922-03-30 1923-03-27 Perfectionnements aux interrupteurs à huile
US40937A US1696604A (en) 1922-03-30 1925-07-01 Fluid-break switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US548155A US1696570A (en) 1922-03-30 1922-03-30 Oil switch
US40937A US1696604A (en) 1922-03-30 1925-07-01 Fluid-break switch

Publications (1)

Publication Number Publication Date
US1696604A true US1696604A (en) 1928-12-25

Family

ID=26717620

Family Applications (1)

Application Number Title Priority Date Filing Date
US40937A Expired - Lifetime US1696604A (en) 1922-03-30 1925-07-01 Fluid-break switch

Country Status (2)

Country Link
US (1) US1696604A (fr)
FR (1) FR564384A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281561A (en) * 1962-07-16 1966-10-25 Marx Erwin Circuit breaker with circulating oil arc quenching means
US3524954A (en) * 1960-12-15 1970-08-18 Asea Ab Operating mechanism for the movable contact of an air blast circuit breaker including means for slowing down the motion of the contact
US3610855A (en) * 1968-12-30 1971-10-05 Inoue Electric Mfg Co Ltd Oil circuit breaker including contact braking device
US3848101A (en) * 1969-09-26 1974-11-12 Ite Imperial Corp Elongated jaw contact for oil circuit breaker disconnect contact
EP0087642A1 (fr) * 1982-02-23 1983-09-07 Siemens Aktiengesellschaft Dispositif de disjoncteurs utilisable comme disjoncteur principal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524954A (en) * 1960-12-15 1970-08-18 Asea Ab Operating mechanism for the movable contact of an air blast circuit breaker including means for slowing down the motion of the contact
US3281561A (en) * 1962-07-16 1966-10-25 Marx Erwin Circuit breaker with circulating oil arc quenching means
US3610855A (en) * 1968-12-30 1971-10-05 Inoue Electric Mfg Co Ltd Oil circuit breaker including contact braking device
US3848101A (en) * 1969-09-26 1974-11-12 Ite Imperial Corp Elongated jaw contact for oil circuit breaker disconnect contact
EP0087642A1 (fr) * 1982-02-23 1983-09-07 Siemens Aktiengesellschaft Dispositif de disjoncteurs utilisable comme disjoncteur principal

Also Published As

Publication number Publication date
FR564384A (fr) 1923-12-28

Similar Documents

Publication Publication Date Title
US2100753A (en) Circuit interrupter
US3327081A (en) Contact with high resistance material insert
GB1467159A (en) Electromagnetic switch
US1696604A (en) Fluid-break switch
GB375308A (en) Improvements relating to electric switches and circuit breakers
US2415448A (en) Snap switch
US2098801A (en) High voltage electric circuit interrupter
GB1131520A (en) Improvements in high voltage electric circuit breakers
US3098141A (en) Enclosed precision switch
GB1409847A (en) Emergency circuit breaker for batteries
US2219171A (en) Electric circuit breaker
US2304529A (en) Circuit interrupter
US2636955A (en) Electrical switch box
US2956140A (en) Electromagnetic relay spring assembly
US2671144A (en) Circuit interrupter
US2814687A (en) Circuit closing device, especially for tests of switches
US3196230A (en) Snap action pull-push type electric switch
US3361995A (en) Magnetic proximity switch
US2460450A (en) Circuit interrupter
US2136874A (en) Multiple mercury contact device
US2109685A (en) Circuit breaker
US3789170A (en) Conducting fluid type inertia responsive switch for motor vehicles
US2645689A (en) Circuit breaker with extended contact travel
US2923799A (en) Interrupter switch
US3196225A (en) Rotary interrupter switch