GB764075A - An electric switching arrangement for use in a liquid-blast circuit interrupter - Google Patents

An electric switching arrangement for use in a liquid-blast circuit interrupter

Info

Publication number
GB764075A
GB764075A GB26899/54A GB2689954A GB764075A GB 764075 A GB764075 A GB 764075A GB 26899/54 A GB26899/54 A GB 26899/54A GB 2689954 A GB2689954 A GB 2689954A GB 764075 A GB764075 A GB 764075A
Authority
GB
United Kingdom
Prior art keywords
segments
slot
contact
liquid
engaged
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
GB26899/54A
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers 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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Publication of GB764075A publication Critical patent/GB764075A/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
    • 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

Landscapes

  • Circuit Breakers (AREA)
  • Manufacture Of Switches (AREA)

Abstract

764,075. Liquid-blast switches; switch contacts. ALLIS-CHALMERS MANUFACTURING CO. Sept. 16, 1954 [Nov. 3, 1953], No. 26899/54. Class 38(5) A stationary contact member for use in a liquid - blast switch comprises a plurality of segments 11a...11d grooved to form slots 17, 18 which provide contact surfaces for engaging movable contacts, the slot 17 extending from one end into the member transversely of its longitudinal axis and the slot 18 extending into the member substantially longitudinally of the longitudinal axis. The stationary contact is tubular and may have four segments (as shown) biased by springs 15 which provide loose pivotal mountings for the segments. The slot 17 is of rectangular cross-section and is engaged by the contact tip of a sickle-shaped pivoted contact member (not shown) which is so disposed that the contact tip wipes across the segments and separates from the segments 11a, 11b last. Thus the segments 11c, 11d are current carrying members and the segments 11a, 11b are arcing and current carrying members and may be of refractory material. The slot 18 is cylindrical and is engaged by a rod contact (not shown). The switch described in the Complete Specification is that of Specification 764,073 and has the upper barrier plate assembly described in Specification 764,074.
GB26899/54A 1953-11-03 1954-09-16 An electric switching arrangement for use in a liquid-blast circuit interrupter Expired GB764075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389953A US2811614A (en) 1953-11-03 1953-11-03 Circuit breaker employing sickle shaped contact, engaging stationary contact and impulse grid

Publications (1)

Publication Number Publication Date
GB764075A true GB764075A (en) 1956-12-19

Family

ID=23540450

Family Applications (2)

Application Number Title Priority Date Filing Date
GB26898/54A Expired GB764074A (en) 1953-11-03 1954-09-16 Improvements in electric circuit interrupters having sickle-shaped contacts
GB26899/54A Expired GB764075A (en) 1953-11-03 1954-09-16 An electric switching arrangement for use in a liquid-blast circuit interrupter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB26898/54A Expired GB764074A (en) 1953-11-03 1954-09-16 Improvements in electric circuit interrupters having sickle-shaped contacts

Country Status (2)

Country Link
US (1) US2811614A (en)
GB (2) GB764074A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293885B (en) * 1960-04-14 1969-04-30 Mc Graw Edison Co Low-fluid electrical circuit breaker
US3361885A (en) * 1965-02-26 1968-01-02 Ite Circuit Breaker Ltd Oil circuit breaker interrupter having keyed separable plates with laminar flow preventing projections and connection means for connecting the interrupter tube and stationary contacts within the interrupter tube to a common support

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE719244C (en) * 1935-08-20 1942-04-02 Siemens Schuckertwrke Ag Low-fluid type circuit breakers
US2545334A (en) * 1950-06-23 1951-03-13 Gen Electric Electric circuit interrupter
US2600211A (en) * 1950-04-15 1952-06-10 Westinghouse Electric Corp Circuit interrupter having finger contacts
US2621273A (en) * 1950-04-28 1952-12-09 Westinghouse Electric Corp Liquid-break circuit interrupter
US2695349A (en) * 1951-07-31 1954-11-23 Westinghouse Electric Corp Over-pressure valve for liquid circuit interrupter

Also Published As

Publication number Publication date
US2811614A (en) 1957-10-29
GB764074A (en) 1956-12-19

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