GB386283A - Improvements in and relating to liquid-break electric switches - Google Patents
Improvements in and relating to liquid-break electric switchesInfo
- Publication number
- GB386283A GB386283A GB26701/32A GB2670132A GB386283A GB 386283 A GB386283 A GB 386283A GB 26701/32 A GB26701/32 A GB 26701/32A GB 2670132 A GB2670132 A GB 2670132A GB 386283 A GB386283 A GB 386283A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- pressure
- arc
- valve
- piston
- 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
- 239000012530 fluid Substances 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
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
- H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
- H01H33/84—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being liquid, e.g. oil
- H01H33/85—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being liquid, e.g. oil wherein the contacts are opened by the flow of liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Circuit Breakers (AREA)
- Breakers (AREA)
Abstract
386,283. Oil-break switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Paul, W. E.; 2279, Grand Boulevard, Schenectady, New York, U.S.A.) Sept. 26, 1932, No. 26701. Convention date, Sept. 24, 1931. [Class 38 (v).] Fluid actuation; arc-rupturing devices; contacts.-The arc formed when contacts 7, 8 are separated by lowering the bridging-member 1 is utilized to set up a pressure which separates the contacts 5, 6 and blows out the arc set up between them. Contacts 5, 6 are connected in series with contacts 7, 8 and urged into engagement by the springs 32, 33, but carry pistons 29, 30 whereby separation is effected by the arc pressure. When the contact 8 is lowered, the arc drawn creates a pressure in the oil or other fluid in the chamber 13, which acts on a piston 36 on the contact 7 causing the latter to follow up the contact 8 so as to keep the arc of small length and prevent excessive pressure arising. The pressure acts also on a piston 21, but without effect until a cam surface 28 on the bridge-carrier opens a valve 23, so allowing piston 21 to move to the right and open a valve 18. The chamber 13 is now in communication with chamber 20, so that the pressure can act on the pistons 29, 30 to separate the contacts 5, 6 and the arc formed between them is blown out through passage 31. When the pressure subsides, the contacts 5, 6 re-engage but the circuit is opened at 7, 8. Valve 23 is reclosed when the switch is reclosed. When the contacts 7, 8 are in shunt with main contacts, Fig. 2 (not shown), the contact 7 and piston 36 are relatively movable and a compression spring is fitted between them to maintain 7 in engagement with 8 until after the main contacts are separated. The valve 18 may be dispensed with, and the initial break may be caused by the rupturing of a fuse.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US564889A US1904519A (en) | 1931-09-24 | 1931-09-24 | Electric circuit interrupter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB386283A true GB386283A (en) | 1933-01-12 |
Family
ID=24256311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26701/32A Expired GB386283A (en) | 1931-09-24 | 1932-09-26 | Improvements in and relating to liquid-break electric switches |
Country Status (3)
Country | Link |
---|---|
US (1) | US1904519A (en) |
DE (1) | DE604649C (en) |
GB (1) | GB386283A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456926A (en) * | 1944-08-10 | 1948-12-21 | Westinghouse Electric Corp | Circuit interrupter |
US2488569A (en) * | 1944-10-04 | 1949-11-22 | Westinghouse Electric Corp | Circuit interrupter |
US2470611A (en) * | 1947-01-25 | 1949-05-17 | Westinghouse Electric Corp | Circuit interrupter |
BE555843A (en) * | 1956-03-22 | |||
DE1100759B (en) * | 1960-02-18 | 1961-03-02 | Siemens Ag | Switching arrangement for alternating current |
-
0
- DE DENDAT604649D patent/DE604649C/de active Active
-
1931
- 1931-09-24 US US564889A patent/US1904519A/en not_active Expired - Lifetime
-
1932
- 1932-09-26 GB GB26701/32A patent/GB386283A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE604649C (en) | |
US1904519A (en) | 1933-04-18 |
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