GB357739A - Improvements in electric switches with quenching liquids - Google Patents
Improvements in electric switches with quenching liquidsInfo
- Publication number
- GB357739A GB357739A GB25696/30A GB2569630A GB357739A GB 357739 A GB357739 A GB 357739A GB 25696/30 A GB25696/30 A GB 25696/30A GB 2569630 A GB2569630 A GB 2569630A GB 357739 A GB357739 A GB 357739A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- contacts
- aug
- heavy
- container
- 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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/57—Recuperation of liquid or gas
Landscapes
- Circuit Breakers (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
357,739. Heavy - current switches. VOIGT & HAEFFNER AKT.-GES., 146, Hanauerlandstrasse, Frankfort - on - Main, Germany. Aug. 28, 1930, No. 25696. Convention date, Aug. 29, 1929. [Class 38 (v).] A heavy-current switch comprises fixed contacts f<1>, f<2> supported just above the surface of an insulating liquid such as oil which fills the container a into which project two hollow bodies b<1>, b2 surrounding both the fixed and the movable contacts. The hollow bodies have a concentric constriction r just above the surface of the liquid to ensure that a high spark-quenching pressure is developed around the contacts at break, and baffles g to prevent liquid being ejected from the container. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the fixed contact may be located just below the surface of the liquid. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1971403X | 1929-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB357739A true GB357739A (en) | 1931-10-01 |
Family
ID=7825495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25696/30A Expired GB357739A (en) | 1929-08-28 | 1930-08-28 | Improvements in electric switches with quenching liquids |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1971403A (en) |
| FR (1) | FR701246A (en) |
| GB (1) | GB357739A (en) |
-
1930
- 1930-08-27 FR FR701246D patent/FR701246A/en not_active Expired
- 1930-08-28 GB GB25696/30A patent/GB357739A/en not_active Expired
- 1930-10-23 US US490735A patent/US1971403A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1971403A (en) | 1934-08-28 |
| FR701246A (en) | 1931-03-13 |
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