GB413751A - Improvements in or relating to oil-immersed electric circuit-breakers - Google Patents
Improvements in or relating to oil-immersed electric circuit-breakersInfo
- Publication number
- GB413751A GB413751A GB249233A GB249233A GB413751A GB 413751 A GB413751 A GB 413751A GB 249233 A GB249233 A GB 249233A GB 249233 A GB249233 A GB 249233A GB 413751 A GB413751 A GB 413751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- plates
- oil
- chamber
- arc
- 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
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
413,751. Oil break switches. REYROLLE & CO., Ltd., A., Hebburn-on- Tyne, and CHRISTIE, J., 4, Sidecliff Road, Sunderland. Jan. 26, 1933, No. 2492. [Class 38 (v).] Arc-rupturing devices ; contacts.-An oil switch has main fixed contacts co-operating with a movable main bridging contact, and fixed arcing contacts co-operating with movable ones adjacent the ends of an oil-filled chamber carried by the bridge-contact, so that pressure generated by the arc at one set of arcing contacts is utilized to drive the oil in the chamber against the arc formed at the other set. In Figs. 1 and 3, fixed main contacts A, B co-operate with the shaped upper surface of a tubular, metal bridge F, which forms the pressure-chamber and is apertured at each end to admit the fixed arcing contacts D, E cooperating with contacts D<1>, E<1> in extensions of the bridge F. The tube F is closed at F<2> and the contact D is shorter than E so that the first arc is formed between D, D<1> and produces the oil-blast for the arc formed subsequently at E, E<1>.The exhaust takes place through a passage shaped to form a flared nozzle by means of baffle plates G which taper outwardly (Fig. 3) and are interleaved with thinner baffles G<1>, which may either extend across the full width of the tube or have slots of different width from that of the plates G. Alternatively, a deflecting block may be inserted in the lower part of the tube-opening, Fig. 4 (not shown), or the tube may be closed at both ends and the contact E provided with a hollow bore with an aperture that is uncovered at a certain stage in the opening movement, Fig. 5 (not shown). Contacts D, E could be made of the same length and E<1> have an extension E<5> (Fig. 3) to ensure the prior breaking. The arrangement is stated to be adapted to existing breakers and to be free from repulsive forces during closure. In Figs. 6 and 8, the fixed arcing contacts are duplicated at each end, as at P, P<1>, Q<1>, and co-operate with contacts M<2> to provide two parallel-connected paths, each in its own chamber, as K<1>. By arranging for the blasts from the chambers to exhaust in opposite directions, reactions due to the blasts are compensated. The chambers as K<1> are formed by means of insulating side plates J, J and a partition J<2>, insulating plates J<3>, J', a central metal bridge L, and mutually-insulated metal plates M, one for each chamber. The parts of the structure are secured by bolts J<5>, with insulating sleeves J<5> to insulate the plates M, and the chamber ends are constituted by insulating closure plates K<2> and baffles K<3> at the exhaust end, Fig. 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB249233A GB413751A (en) | 1933-01-26 | 1933-01-26 | Improvements in or relating to oil-immersed electric circuit-breakers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB249233A GB413751A (en) | 1933-01-26 | 1933-01-26 | Improvements in or relating to oil-immersed electric circuit-breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB413751A true GB413751A (en) | 1934-07-26 |
Family
ID=9740520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB249233A Expired GB413751A (en) | 1933-01-26 | 1933-01-26 | Improvements in or relating to oil-immersed electric circuit-breakers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB413751A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742383C (en) * | 1941-02-27 | 1943-12-01 | Studiengesellschaft Fuer Hochl | Extinguishing chamber switch |
US2648745A (en) * | 1950-05-18 | 1953-08-11 | Westinghouse Electric Corp | Circuit interrupter |
US2666117A (en) * | 1950-05-18 | 1954-01-12 | Westinghouse Electric Corp | Circuit interrupter |
US2671144A (en) * | 1950-05-18 | 1954-03-02 | Westinghouse Electric Corp | Circuit interrupter |
US2748227A (en) * | 1951-06-27 | 1956-05-29 | Yorkshire Switchgear & Eng Co | Electric circuit breakers |
DE1090739B (en) * | 1955-10-25 | 1960-10-13 | Reinhold Pfundt | Fire chamber for electric low-oil circuit breakers |
US2979589A (en) * | 1956-04-09 | 1961-04-11 | Westinghouse Electric Corp | Circuit interrupters |
US3028465A (en) * | 1958-10-06 | 1962-04-03 | Gen Electric | Fluid blast circuit interrupter |
US3030476A (en) * | 1957-02-14 | 1962-04-17 | Mc Graw Edison Co | Automatic circuit interrupter |
FR2420200A1 (en) * | 1978-03-18 | 1979-10-12 | Mitsubishi Electric Corp | ARC SELF-EXTINGUISHING SWITCHING DEVICE |
-
1933
- 1933-01-26 GB GB249233A patent/GB413751A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742383C (en) * | 1941-02-27 | 1943-12-01 | Studiengesellschaft Fuer Hochl | Extinguishing chamber switch |
US2648745A (en) * | 1950-05-18 | 1953-08-11 | Westinghouse Electric Corp | Circuit interrupter |
US2666117A (en) * | 1950-05-18 | 1954-01-12 | Westinghouse Electric Corp | Circuit interrupter |
US2671144A (en) * | 1950-05-18 | 1954-03-02 | Westinghouse Electric Corp | Circuit interrupter |
US2748227A (en) * | 1951-06-27 | 1956-05-29 | Yorkshire Switchgear & Eng Co | Electric circuit breakers |
DE1090739B (en) * | 1955-10-25 | 1960-10-13 | Reinhold Pfundt | Fire chamber for electric low-oil circuit breakers |
US2979589A (en) * | 1956-04-09 | 1961-04-11 | Westinghouse Electric Corp | Circuit interrupters |
US3030476A (en) * | 1957-02-14 | 1962-04-17 | Mc Graw Edison Co | Automatic circuit interrupter |
US3028465A (en) * | 1958-10-06 | 1962-04-03 | Gen Electric | Fluid blast circuit interrupter |
FR2420200A1 (en) * | 1978-03-18 | 1979-10-12 | Mitsubishi Electric Corp | ARC SELF-EXTINGUISHING SWITCHING DEVICE |
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