GB967521A - Improvements in gas-filled electric switches - Google Patents

Improvements in gas-filled electric switches

Info

Publication number
GB967521A
GB967521A GB27596/62A GB2759662A GB967521A GB 967521 A GB967521 A GB 967521A GB 27596/62 A GB27596/62 A GB 27596/62A GB 2759662 A GB2759662 A GB 2759662A GB 967521 A GB967521 A GB 967521A
Authority
GB
United Kingdom
Prior art keywords
gas
pin
bellows
switch
enclosure
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
GB27596/62A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB967521A publication Critical patent/GB967521A/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
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

967,521. Heavy current switches. WESTINGHOUSE ELECTRIC CORPORATION. July 18, 1962 [Sept. 19, 1961], No. 27596/62. Heading H2B. A switch in a sealed enclosure containing arc extinguishing gas, such as the switch of Specifications 967,522 and 967,523, has a device responsive solely to a drop in the density of the gas to prevent the opening of the switch if gas is lost from the enclosure. The device is a sealed bellows 102 mounted on the frame 24 of the operating mechanism within the enclosure. The free end of the bellows carries a lock-pin 103 so that should gas be lost from the enclosure, the bellows expands and moves the pin 103 into the path of movement of the pivoted lever 19 of the lever system described in Specification 967,522, so preventing the opening movement of that system. A recess may be provided in the side of the lever 19 so that should the contacts be open when a loss of gas occurs, the pin 103 engages in the recess and prevents the reclosing of the contacts. The bellows may be filled with the same gas as that in the enclosure so as to be insensitive to pressure changes due to changes in temperature. Should the bellows leak, the pin 103 is moved to prevent operation of the switch. The pin 103 may have a transverse pin 111 which, when the bellows expands, prevents the tripping movement of a trip bar 112 and so prevents the tripping of the switch by the mechanism described in Specification 967,523.
GB27596/62A 1961-09-19 1962-07-18 Improvements in gas-filled electric switches Expired GB967521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US139083A US3206583A (en) 1961-09-19 1961-09-19 Safety interlock for gas-filled switch mechanisms

Publications (1)

Publication Number Publication Date
GB967521A true GB967521A (en) 1964-08-26

Family

ID=22485041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27596/62A Expired GB967521A (en) 1961-09-19 1962-07-18 Improvements in gas-filled electric switches

Country Status (3)

Country Link
US (1) US3206583A (en)
JP (1) JPS3922020Y1 (en)
GB (1) GB967521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158520A2 (en) * 1984-04-09 1985-10-16 RAYCHEM CORPORATION (a Delaware corporation) Load break switch with safety mechanism
FR2637423A1 (en) * 1988-10-04 1990-04-06 Merlin Gerin Electrical unit or cell with gas insulation, equipped with a device for locking under lack of gas pressure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512623A (en) * 1938-03-08 1939-09-21 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
US2911492A (en) * 1957-02-25 1959-11-03 Gen Electric Operating mechanism for a fluid blast circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158520A2 (en) * 1984-04-09 1985-10-16 RAYCHEM CORPORATION (a Delaware corporation) Load break switch with safety mechanism
EP0158520A3 (en) * 1984-04-09 1986-11-12 RAYCHEM CORPORATION (a Delaware corporation) Load break switch with safety mechanism
FR2637423A1 (en) * 1988-10-04 1990-04-06 Merlin Gerin Electrical unit or cell with gas insulation, equipped with a device for locking under lack of gas pressure

Also Published As

Publication number Publication date
US3206583A (en) 1965-09-14
JPS3922020Y1 (en) 1964-08-03

Similar Documents

Publication Publication Date Title
GB1263819A (en) Circuit breaker with improved latch reset
GB930980A (en) Improvements in electric switches
GB1326186A (en) Circuit breaker with on off and trip indication
GB1126362A (en) Improvements in and relating to electric circuit breakers
GB904160A (en) Improvements in gas-blast electric circuit interrupters
GB980010A (en) Improvements in electric circuit breakers
GB967521A (en) Improvements in gas-filled electric switches
US2949521A (en) High tension air blast circuit breaker
GB831586A (en) Improvements in or relating to electric switches
GB606860A (en) Improvements in or relating to gas blast electric circuit-breakers
GB1029514A (en) Improvements in or relating to circuit interrupters
GB911156A (en) Improvements in or relating to withdrawably mounted electrical circuit breaking devices
GB1040143A (en) Improvements in electric circuit breakers
US3319034A (en) Circuit breaker having means for readily indicating the position thereof
GB948876A (en) Gas-blast electric circuit interrupters
GB953773A (en) Electric circuit breakers
GB810925A (en) Electric circuit breaker with magnetic blow-out
GB984301A (en) Electric circuit breaker
GB967522A (en) Operating mechanisms for electric circuit interrupters
GB1020009A (en) Electric circuit interrupters
GB912251A (en) Fluid-blast electric circuit interrupters
GB889621A (en) A load-break disconnecting switch
GB951409A (en) Improvements in electric circuit breakers
GB917662A (en) Improvements in circuit breakers with magnetic blowout
GB1145959A (en) Improvements relating to electric circuit breakers