CH96372A - Safety valve for oil transformers. - Google Patents
Safety valve for oil transformers.Info
- Publication number
- CH96372A CH96372A CH96372DA CH96372A CH 96372 A CH96372 A CH 96372A CH 96372D A CH96372D A CH 96372DA CH 96372 A CH96372 A CH 96372A
- Authority
- CH
- Switzerland
- Prior art keywords
- safety valve
- oil
- air space
- air
- oil transformers
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Description
Sicherheitsventil für Öltransformatoren. Um bei Öltransformatoren 'das Öl trocken zu halten, füllt man die Transformatorkästen bis zum Deckel mit Öl und schliesst an die Kästen ein Ausdehnungsgefäss- an, welches die Schwankungen des Ölspiegels infolge wechselnder Temperatur aufnimmt. Immer hin kann aber durch das Ausdehnungsgefäss noch Feuchtigkeit in den Transformator ein dringen, weshalb es luftdicht verschlossen und sein Luftraum zum Zweck der Luftentfeuch- tung über einen Behälter mit hygroskopischem Stoff mit der Aussenluft verbunden wird.
Ein weiterer Ausrüstungsteil des Öltrans- formators, in welchem das Transformatoröl mit der Luft in Verbindung steht, ist das Sicherheitsventil. Um auch bei diesem die Möglichkeit der Wasseraufnahme durch das Öl zu verhindern, wird sein Luftraum erfin dungsgemäss ebenfalls an einen Entfeuchter angeschlossen.
In welcher Weise dies beispielsweise ge schehen kann, ist aus der Zeichnung zu er kennen. Auf dem Deckel L des ganz mit Öl gefüllten Transformatorkastens a ist das Sicherheitsventil n angeordnet. Es ist hier nach Patent 80288 ausgebildet und mit einem Siphonverschluss p versehen. Von seinem obern Teil führt ein Rohr o zum Luftraum des Aus dehnungsgefässes d, das über das Rohr c mit dem Ölkasten a verbunden ist.
Der Luft raum des Gefässes d steht in bekannter Weise durch das Luftaustauscbrohe f über einen die hygroskopische Masse<I>h</I> und das Sieb k ent haltenden Entfeuchter g mit der Frischluft in Verbindung, so dass auch mit dem Öl des Sicherheitsventils - n ausschliesslich entfeuch tete Luft in Berührung kommt.
Safety valve for oil transformers. In order to keep the oil dry in oil transformers, the transformer boxes are filled with oil up to the cover and an expansion tank is attached to the boxes, which absorbs the fluctuations in the oil level due to the changing temperature. However, moisture can still penetrate the transformer through the expansion vessel, which is why it is hermetically sealed and its air space is connected to the outside air via a container with hygroscopic material for the purpose of air dehumidification.
Another piece of equipment in the oil transformer, in which the transformer oil is in contact with the air, is the safety valve. In order to prevent the possibility of water being absorbed by the oil in this case too, its air space is also connected to a dehumidifier according to the invention.
How this can happen, for example, can be seen from the drawing. The safety valve n is arranged on the cover L of the transformer box a completely filled with oil. It is designed here according to patent 80288 and provided with a siphon closure p. From its upper part, a tube o leads to the air space of the expansion vessel d, which is connected to the oil box a via the tube c.
The air space of the vessel d is connected to the fresh air in a known manner through the air exchange brohe f via a dehumidifier g containing the hygroscopic mass <I> h </I> and the sieve k, so that the oil in the safety valve - n only dehumidified air comes into contact.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH96372T | 1921-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH96372A true CH96372A (en) | 1922-10-02 |
Family
ID=4354058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH96372D CH96372A (en) | 1921-06-02 | 1921-06-02 | Safety valve for oil transformers. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH96372A (en) |
-
1921
- 1921-06-02 CH CH96372D patent/CH96372A/en unknown
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