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GB1018001A - Improvements relating to oil circuit breakers - Google Patents

Improvements relating to oil circuit breakers

Info

Publication number
GB1018001A
GB1018001A GB28395/61A GB2839561A GB1018001A GB 1018001 A GB1018001 A GB 1018001A GB 28395/61 A GB28395/61 A GB 28395/61A GB 2839561 A GB2839561 A GB 2839561A GB 1018001 A GB1018001 A GB 1018001A
Authority
GB
United Kingdom
Prior art keywords
solenoid
valve
chamber
piston
lever
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
GB28395/61A
Inventor
Albert Roxburgh
Albert Leigh
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB28395/61A priority Critical patent/GB1018001A/en
Priority to US213186A priority patent/US3177326A/en
Priority to CH933162A priority patent/CH403933A/en
Priority to DE19621515392 priority patent/DE1515392A1/en
Priority to FR906104A priority patent/FR1330551A/en
Priority to GB32819/62A priority patent/GB1027399A/en
Priority to DE19631515434 priority patent/DE1515434A1/en
Priority to CH1049063A priority patent/CH432622A/en
Priority to FR945805A priority patent/FR1368414A/en
Publication of GB1018001A publication Critical patent/GB1018001A/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
    • 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
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/68—Liquid-break switches, e.g. oil-break
    • 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
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/75—Liquid-break switches, e.g. oil-break
    • 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
    • H01H33/008—Pedestal mounted switch gear combinations

Landscapes

  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

1,018,001. Automatic circuit breakers; liquid blast switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1962 [Aug. 4, 1961], No. 28395/61. Heading H2B. In a circuit breaker having contact rod 18, Fig. 1 (not shown), immersed in an insulating liquid in a chamber 10, the static pressure of the liquid is increased during contact opening by a piston 6, a valve 11 being provided between the chamber 10 and an overflow space 23 to close an outlet when the pressure exceeds a preset value and a relief valve 12 preventing excessive pressures. Contact rod 18 is moved to the open position by a linkage 17 under the action of a spring 16 when a latch 14 releases a lever 44 for pivotal movement. Latch 14 is removed by energizing a solenoid 31. At the same time another solenoid 30 operates a valve 61 to supply compressed air of a reservoir 4 to a cylinder 5 which is linked to piston 6 to pressurize the oil in chamber 10. The breaker is reclosed by energizing a third solenoid 46 which through a lever 24 operates a valve 60 to supply air from reservoir 4 to cylinder 27 moving a piston 45 to pivot lever 44. The pivot of lever 24 comprises a member 28 removable by the solenoid 31 so that solenoid 46 is ineffective to close the breaker while the solenoids 31, 30 are energized. The latter may be energized either through a manual switch 32 or through a protective relay. In a modification solenoid 30 is omitted, the valve 61 being actuated mechanically by the link 44. In another modification valve 12 is placed on the wall of chamber 10, the space 9 being divided by a partition so that oil directly surrounding the chamber 10 is not pressurized by the piston 6.
GB28395/61A 1961-08-04 1961-08-04 Improvements relating to oil circuit breakers Expired GB1018001A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB28395/61A GB1018001A (en) 1961-08-04 1961-08-04 Improvements relating to oil circuit breakers
US213186A US3177326A (en) 1961-08-04 1962-07-30 Pressurized chamber arrangement for oil circuit breakers
CH933162A CH403933A (en) 1961-08-04 1962-08-03 Low-oil switch
DE19621515392 DE1515392A1 (en) 1961-08-04 1962-08-03 Oil switch
FR906104A FR1330551A (en) 1961-08-04 1962-08-03 Improvements to low oil volume circuit breakers
GB32819/62A GB1027399A (en) 1961-08-04 1962-08-27 Improvements in and relating to circuit breakers
DE19631515434 DE1515434A1 (en) 1961-08-04 1963-08-23 Electric switch
CH1049063A CH432622A (en) 1961-08-04 1963-08-26 Low-oil switch
FR945805A FR1368414A (en) 1961-08-04 1963-08-27 Circuit breakers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB28395/61A GB1018001A (en) 1961-08-04 1961-08-04 Improvements relating to oil circuit breakers
GB32819/62A GB1027399A (en) 1961-08-04 1962-08-27 Improvements in and relating to circuit breakers

Publications (1)

Publication Number Publication Date
GB1018001A true GB1018001A (en) 1966-01-26

Family

ID=26259349

Family Applications (2)

Application Number Title Priority Date Filing Date
GB28395/61A Expired GB1018001A (en) 1961-08-04 1961-08-04 Improvements relating to oil circuit breakers
GB32819/62A Expired GB1027399A (en) 1961-08-04 1962-08-27 Improvements in and relating to circuit breakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB32819/62A Expired GB1027399A (en) 1961-08-04 1962-08-27 Improvements in and relating to circuit breakers

Country Status (5)

Country Link
US (1) US3177326A (en)
CH (2) CH403933A (en)
DE (2) DE1515392A1 (en)
FR (2) FR1330551A (en)
GB (2) GB1018001A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3300609A (en) * 1963-05-15 1967-01-24 Ass Elect Ind Switchgear for high voltage power circuits with removable vacuum switch units
CH413049A (en) * 1964-09-09 1966-05-15 Oerlikon Maschf Low-liquid circuit breaker
CH654444A5 (en) * 1981-10-12 1986-02-14 Alsthom Atlantique GAS BREAKER UNDER PRESSURE COMPRISING FOR EACH PHASE TWO SWITCHING CHAMBERS PROVIDED IN V.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409723A (en) * 1943-12-23 1946-10-22 Realty Ind Corp Oil circuit breaker
FR1054468A (en) * 1951-07-11 1954-02-10 Siemens Ag Reduced liquid volume power switch
US2789186A (en) * 1955-05-31 1957-04-16 Gen Electric Electric circuit breaker
US2909633A (en) * 1957-02-11 1959-10-20 Donald M Umphrey High tension oil switch
FR1168741A (en) * 1957-03-01 1958-12-15 Further training in circuit breakers
US3002073A (en) * 1958-04-16 1961-09-26 Gen Electric Electric circuit interruption device and method

Also Published As

Publication number Publication date
DE1515392A1 (en) 1969-11-20
CH403933A (en) 1965-12-15
FR1330551A (en) 1963-06-21
FR1368414A (en) 1964-07-31
US3177326A (en) 1965-04-06
CH432622A (en) 1967-03-31
DE1515434A1 (en) 1970-06-18
GB1027399A (en) 1966-04-27

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