GB869516A - Recirculating gas blast electric circuit interrupter - Google Patents

Recirculating gas blast electric circuit interrupter

Info

Publication number
GB869516A
GB869516A GB20565/58A GB2056558A GB869516A GB 869516 A GB869516 A GB 869516A GB 20565/58 A GB20565/58 A GB 20565/58A GB 2056558 A GB2056558 A GB 2056558A GB 869516 A GB869516 A GB 869516A
Authority
GB
United Kingdom
Prior art keywords
contacts
piston
gas
assembly
valve
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
GB20565/58A
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.)
ITE Circuit Breaker Co
Original Assignee
ITE Circuit Breaker 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 ITE Circuit Breaker Co filed Critical ITE Circuit Breaker Co
Publication of GB869516A publication Critical patent/GB869516A/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
    • H01H33/025—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
    • 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
    • H01H33/302—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator for fluid insulated switchgear, wherein the insulating fluid is also the working fluid
    • 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

Abstract

869,516. Gas-blast switches. I-T-E CIRCUIT BREAKER CO. June 26, 1958 [Dec. 16, 1957], No. 20565/58. Class 38 (5). [Also in Group XXXVI] A recirculating gas-blast switch has insulating bushings 12, 13 passing through opposite ends of an elongated tank 11, a stud 14 extending through the bushing 12 and carrying a fixed contact 16, and a conducting tube 15 extending through the bushing 13 and housing an axially movable contact assembly 20 which is electrically connected to the tube 15 by a stationary bridging contact assembly 25. The assembly 20 includes main and arcing contacts formed by concentric tubes 42, 43 which are slit at their ends to provide segments which are biased by springs. The contact tubes are secured to a tube 29 which extends from a differential piston assembly 30. The tank 11 is connected to a high-pressure source of gas so that the contacts are always surrounded by high-pressure gas. When the contacts are closed the gas acts through the tube 29 and through a bore in the piston assembly 30, so that pressure gas from the tank 11 acts on the left face of the larger piston 34 as well as on the right face of the smaller piston 33, the space between the pistons being connected to a low-pressure reservoir. To open the contacts, the cylinder 72 housing the larger piston 34 is vented through a spring biased valve 83, a pipe 78 and a blast valve (not shown) to the low-pressure reservoir so that the pressure gas in the tank 11 acting on the smaller piston 33 opens the contacts, a blast of gas flowing through the movable contacts, the tube 29 and the piston assembly 30 to the low-pressure reservoir until the piston 34 closes the valve 83. The contacts are closed by closing the blast valve and opening a further valve which connects the pipe 78 to the high-pressure source so that high-pressure gas acts on the larger piston 34 and closes the contacts. Fig. 8 (not shown) illustrates the external valve gear and equipment for a multi-pole or multi-break assembly.
GB20565/58A 1957-12-16 1958-06-26 Recirculating gas blast electric circuit interrupter Expired GB869516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US703225A US2978559A (en) 1957-12-16 1957-12-16 Bushing mounted interrupter

Publications (1)

Publication Number Publication Date
GB869516A true GB869516A (en) 1961-05-31

Family

ID=24824538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20565/58A Expired GB869516A (en) 1957-12-16 1958-06-26 Recirculating gas blast electric circuit interrupter

Country Status (2)

Country Link
US (1) US2978559A (en)
GB (1) GB869516A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120591A (en) * 1962-04-23 1964-02-04 Henry W Lewis Electrical connector of the pressureactuated type having fast-acting switching unit
US3780243A (en) * 1972-10-12 1973-12-18 P Koomey Apparatus for making and breaking an electrical underwater connection between releasable underwater members
EP2884513A1 (en) * 2013-12-11 2015-06-17 GE Energy Power Conversion UK Limited Circuit Breakers

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419446A (en) * 1947-04-22 Electric circuit breaker
FR632782A (en) * 1928-01-14
DE295226C (en) *
US1811887A (en) * 1926-04-14 1931-06-30 Condit Electrical Mfg Corp Insulator
US1895907A (en) * 1928-07-24 1933-01-31 Frank G Baum High voltage electrical switch
DE701867C (en) * 1938-02-04 1941-01-25 Aeg Electrical switchgear
US2459600A (en) * 1944-12-14 1949-01-18 Westinghouse Electric Corp Compressed gas circuit interrupter
FR997193A (en) * 1945-06-13 1952-01-02 Delle Atel Const Electr Tank circuit breaker
GB605163A (en) * 1945-12-17 1948-07-16 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
GB626842A (en) * 1947-09-09 1949-07-21 Reyrolle A & Co Ltd Improvements in or relating to gas-blast electric circuit-breakers
US2757261A (en) * 1951-07-19 1956-07-31 Westinghouse Electric Corp Circuit interrupters
BE519814A (en) * 1952-05-31
DE1011035B (en) * 1953-03-31 1957-06-27 Licentia Gmbh Heavy-duty electrical switch
FR1123717A (en) * 1955-03-15 1956-09-26 Comp Generale Electricite Compressed air circuit breaker
US2905793A (en) * 1957-06-21 1959-09-22 Ite Circuit Breaker Ltd Differential piston for recirculating gas blast interrupters

Also Published As

Publication number Publication date
US2978559A (en) 1961-04-04

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