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 interrupterInfo
- 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
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.
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)
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)
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 |
-
1953
- 1953-11-03 US US389953A patent/US2811614A/en not_active Expired - Lifetime
-
1954
- 1954-09-16 GB GB26898/54A patent/GB764074A/en not_active Expired
- 1954-09-16 GB GB26899/54A patent/GB764075A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2811614A (en) | 1957-10-29 |
GB764074A (en) | 1956-12-19 |
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