GB930987A - Improvements in or relating to electric circuit breakers - Google Patents

Improvements in or relating to electric circuit breakers

Info

Publication number
GB930987A
GB930987A GB2498/62A GB249862A GB930987A GB 930987 A GB930987 A GB 930987A GB 2498/62 A GB2498/62 A GB 2498/62A GB 249862 A GB249862 A GB 249862A GB 930987 A GB930987 A GB 930987A
Authority
GB
United Kingdom
Prior art keywords
piston
space
passage
jan
biased
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
Application number
GB2498/62A
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.)
COQ NV
Original Assignee
COQ NV
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 COQ NV filed Critical COQ NV
Publication of GB930987A publication Critical patent/GB930987A/en
Expired legal-status Critical Current

Links

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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7738—Pop valves
    • Y10T137/7743—Lost motion between pop pressure reactor and valve

Landscapes

  • Circuit Breakers (AREA)
  • Actuator (AREA)

Abstract

930,987. Gas-blast switches. COQ N. V. Jan. 23, 1962 [Jan. 24, 1961], No. 2498/62. Class 38 (5). A contact opening piston of a " temporarily opened " type circuit-breaker has initial " lost motion " and is associated with means which limit the area of the piston which is subjected to the operating gas pressure in its rest position. As shown, the moving contact 3 is biased by a spring 20 against a fixed nozzle contact 1 and the piston 10 is biased by spring 12 so that an annular V-shaped projection 11 on the piston face engages an elastic ring 13 so as to divide the space between the piston and the lower end of the cylinder 6 into two parts 14, 15 of which only the part 14 is connected to the chamber 17 by passages 16. The upper port 23 of the cylinder 6 is vented to the atmosphere and a by-pass passage 22 connects the space 15 to the space 23. When gas applied through a passage 18 reaches a predetermined value the piston 10 will move upward closing the passage 22 and the gas pressure will then act on the whole lower face of the piston to urge it upwards into driving engagement with a collar 21 on the moving contact carrying pin 5. Specification 606,860 is referred to.
GB2498/62A 1961-01-24 1962-01-23 Improvements in or relating to electric circuit breakers Expired GB930987A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL260393 1961-01-24

Publications (1)

Publication Number Publication Date
GB930987A true GB930987A (en) 1963-07-10

Family

ID=19752828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2498/62A Expired GB930987A (en) 1961-01-24 1962-01-23 Improvements in or relating to electric circuit breakers

Country Status (6)

Country Link
US (1) US3143612A (en)
BE (1) BE612865A (en)
CH (1) CH406359A (en)
DE (1) DE1182726B (en)
GB (1) GB930987A (en)
NL (2) NL260393A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496378A (en) * 1966-05-11 1970-02-17 Teiichi Sakamoto Selectively interconnected parallel charge,series discharge,capacitive impulse voltage generator
US4233554A (en) * 1979-04-05 1980-11-11 The United States Of America As Represented By The Secretary Of The Army Vent actuated shorting switch
IL93504A (en) * 1990-02-23 1994-01-25 Rosenberg Peretz Quick-action shut-off valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR813229A (en) * 1937-05-28
US693416A (en) * 1899-11-09 1902-02-18 Lorain Steel Co Circuit-breaker.
US2091904A (en) * 1935-05-13 1937-08-31 Baumann Charles Door closing and checking device
US2420370A (en) * 1944-01-26 1947-05-13 Air Reduction Pressure relief valve
US2556209A (en) * 1949-02-08 1951-06-12 Sydney R Kramer Pneumatic electric switch

Also Published As

Publication number Publication date
NL260393A (en) 1900-01-01
CH406359A (en) 1966-01-31
US3143612A (en) 1964-08-04
BE612865A (en) 1962-05-16
NL120011C (en) 1900-01-01
DE1182726B (en) 1964-12-03

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