GB484457A - Improvements in or relating to protective devices for oil-filled electric apparatus - Google Patents
Improvements in or relating to protective devices for oil-filled electric apparatusInfo
- Publication number
- GB484457A GB484457A GB31056/37A GB3105637A GB484457A GB 484457 A GB484457 A GB 484457A GB 31056/37 A GB31056/37 A GB 31056/37A GB 3105637 A GB3105637 A GB 3105637A GB 484457 A GB484457 A GB 484457A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- float
- flow
- switch
- electric apparatus
- 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
- 230000001681 protective effect Effects 0.000 title abstract 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000011664 signaling Effects 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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/55—Oil reservoirs or tanks; Lowering means therefor
- H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/40—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformer Cooling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES124992D DE664701C (de) | 1936-11-19 | 1936-11-19 | Schutzvorrichtung fuer oelgefuellte elektrische Apparate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB484457A true GB484457A (en) | 1938-05-05 |
Family
ID=50552529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31056/37A Expired GB484457A (en) | 1936-11-19 | 1937-11-11 | Improvements in or relating to protective devices for oil-filled electric apparatus |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH200165A (de) |
| DE (1) | DE664701C (de) |
| FR (1) | FR829388A (de) |
| GB (1) | GB484457A (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE766253C (de) * | 1938-09-13 | 1952-05-15 | Siemens Schuckertwerke A G | OElschuetz |
| DE741490C (de) * | 1940-09-25 | 1943-11-11 | Max Bucholz | Vorrichtung zur UEbertragung einer durch die Ansammlung von Luft oder Gas in einem mit Fluessigkeit gefuellten Gefaess hervorgerufenen Bewegung auf eine Anzeige- oder Kontakteinrichtung |
| DE744392C (de) * | 1940-10-04 | 1944-01-14 | Max Buchholz | Schutzvorrichtung fuer elektrische Geraete mit fluessiger Isolation, z. B. OEltransformatoren |
| DE755544C (de) * | 1941-06-04 | 1953-08-31 | Siemens Schuckertwerke A G | Schutzeinrichtung zum Anzeigen von Stoerungen in fluessigkeits-gefuellten Behaeltern, insbesondere elektrischen Geraete- und Maschinengehaeusen |
| DE760881C (de) * | 1941-07-03 | 1954-03-15 | Siemens Schuckertwerke A G | Schutzeinrichtung fuer mit einem fluessigen Isoliermittel gefuellte elektrische Maschinen und Geraete |
| DE943544C (de) * | 1944-08-05 | 1956-05-24 | Aeg | Fluessigkeitsgefuellter elektrischer Hochspannungsapparat |
| DE974715C (de) * | 1953-08-28 | 1961-04-06 | Bosch Gmbh Robert | Abschaltvorrichtung fuer in Gehaeuse eingebaute Kondensatoren |
| DE10361884B3 (de) | 2003-12-19 | 2005-08-11 | Siemens Ag | Vorrichtung und Verfahren zur Überwachung eines Gasvolumens in einer mit Flüssigkeit befüllten Anlage |
-
1936
- 1936-11-19 DE DES124992D patent/DE664701C/de not_active Expired
-
1937
- 1937-11-06 CH CH200165D patent/CH200165A/de unknown
- 1937-11-11 GB GB31056/37A patent/GB484457A/en not_active Expired
- 1937-11-17 FR FR829388D patent/FR829388A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH200165A (de) | 1938-09-30 |
| DE664701C (de) | 1938-09-05 |
| FR829388A (fr) | 1938-06-24 |
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