AT209404B - Explosion protection device on electrical equipment that contains a liquid insulation medium - Google Patents

Explosion protection device on electrical equipment that contains a liquid insulation medium

Info

Publication number
AT209404B
AT209404B AT838958A AT838958A AT209404B AT 209404 B AT209404 B AT 209404B AT 838958 A AT838958 A AT 838958A AT 838958 A AT838958 A AT 838958A AT 209404 B AT209404 B AT 209404B
Authority
AT
Austria
Prior art keywords
protection device
explosion protection
electrical equipment
insulation medium
liquid insulation
Prior art date
Application number
AT838958A
Other languages
German (de)
Original Assignee
Haefely & Cie Ag Emil
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Haefely & Cie Ag Emil filed Critical Haefely & Cie Ag Emil
Application granted granted Critical
Publication of AT209404B publication Critical patent/AT209404B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/42Constructional features of converters
    • C21C5/46Details or accessories
    • C21C5/4653Tapholes; Opening or plugging thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Housings And Mounting Of Transformers (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Explosionsschutzvorrichtung an elektrischen Apparaten, die ein flüssiges Isolationsmedium enthalten 
 EMI1.1 
 

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 nicht gezeigten, an das Niederspannungsnetz angeschlossenen Alarmeinrichtung beherrscht. Dieser Quecksilberschalter 17 weist einen Kipparm auf, der mit einem unter dem unteren Ende des Führungsrohres 16 sich befindenden Auffangteil 17a versehen ist. 



   Wenn ein Isolationsdefekt vorhanden ist und eine Gasentwicklung stattfindet, sammeln sich die auf-   steigenden Gase inder Gasauffangkammer 13. Dies   hat zur Folge, dass sich das Ölniveau in derselben senkt und der Schwimmer dadurch so verschwenkt wird, dass die Fallkugel 15 durch   die Öffnung   14b hindurch in das   Filhrungsrohr   16 fällt und auf den Auffangteil 17a des Quecksilberschalters 17 auftrifft, der dadurch zwecks Auslösung der Signaleinrichtung in seine Schliesslage   Übergeführt   wird. Die Fallkugel 15 selbst rollt in einen schräg in der Wandung des Kessels 10 angeordneten Rohrstutzen 18, dessen Aussenende mittels eines Schauglases 18a abgeschlossen ist. 
 EMI2.1 
 Endteil des Fallrohres 21 greifender Sperrstift 22 befestigt ist.

   Das Fallrohr 21 besitzt eine seitliche Ausbuchtung 21a, in der die darinliegende   Fallkugell5 vom unteren.   Endteil des Sperrstiftes 22 gehalten wird. 



  Bei einer Gasentwicklung im Wandler entweichen die Gase in die von der Glocke 20 gebildete Gasauffangkammer, wodurch diese Glocke und mit ihr der Sperrstift 22 leicht angehoben wird, was zur Folge hat, dass die Fallkugel 15 befreit wird und in ähnlicher Weise wie oben erläutert, den Quecksilber-Kippschalter 23 betätigt. 



   ZurErhöhung der Isolierdistanz zwischen den   auf Hochspannungs- und   den auf Niederspannungspotential befindlichen Teilen oder um Apparateteile im Isolator zu umgehen, kann das Führungsrohr 16 bzw. 



  21 gebogen sein. 



    PATENTANSPRÜCHE :    . 1. Explosionsschutzvorrichtung an. elektrischen Hochspannungs-Apparaten, die ein flüssiges Isolationsmedium enthalten und mit einem auf einem Isolator sitzenden, an Hochspannung liegenden Ausdeh-   nungsgefäss   versehen sind, in welchem eine Gasauffangkammer vorgesehen ist, die einer Fallkugel zugeordnete, gasdruckabhängige Steuermittel enthält, die diese Kugel bei einer übermässigen Gasdruckentwicklung zum Fall veranlassen, um dadurch einen unterhalb des Isolators vorgesehenen, den Stromkreis einer an das Niederspannungsnetz auf Erdpotential angeschlossenen Alarmeinrichtung beherrschenden Schalter zu betätigen, dadurch gekennzeichnet, dass der Fallkugel (15) ein im Innern des Isolators   (11)   vorgesehenes, aus Isoliermaterial bestehendes Führungsrohr (16 bzw.

   21) zugeordnet ist, durch das die fallende Kugel zum Schalter (17 bzw. 23) geführt ist.



   <Desc / Clms Page number 1>
 



  Explosion protection device on electrical equipment that contains a liquid insulation medium
 EMI1.1
 

 <Desc / Clms Page number 2>

 not shown, connected to the low-voltage network mastered alarm device. This mercury switch 17 has a rocker arm which is provided with a collecting part 17a located under the lower end of the guide tube 16.



   If there is an insulation defect and gas development takes place, the rising gases collect in the gas collecting chamber 13. This has the consequence that the oil level in the same drops and the float is swiveled so that the falling ball 15 through the opening 14b falls into the guide tube 16 and strikes the collecting part 17a of the mercury switch 17, which is thereby transferred into its closed position for the purpose of triggering the signaling device. The falling ball 15 itself rolls into a pipe socket 18 which is arranged obliquely in the wall of the boiler 10 and the outer end of which is closed off by means of a sight glass 18a.
 EMI2.1
 End part of the downpipe 21 engaging locking pin 22 is attached.

   The downpipe 21 has a lateral bulge 21a in which the falling ball 5 located therein from the lower. End portion of the locking pin 22 is held.



  When gas is developed in the converter, the gases escape into the gas collecting chamber formed by the bell 20, whereby this bell and with it the locking pin 22 is slightly raised, with the result that the falling ball 15 is freed and, in a similar manner as explained above, the Mercury toggle switch 23 actuated.



   To increase the insulation distance between the parts at high voltage and low voltage potential or to bypass apparatus parts in the insulator, the guide tube 16 or



  21 be bent.



    PATENT CLAIMS:. 1. Explosion protection device on. electrical high-voltage devices that contain a liquid insulation medium and are provided with an expansion vessel seated on an insulator and connected to high voltage, in which a gas collecting chamber is provided which contains gas pressure-dependent control means assigned to a falling ball, which control means that this ball is in the event of excessive gas pressure development cause to fall in order to actuate a switch provided below the insulator and controlling the circuit of an alarm device connected to the low-voltage network at ground potential, characterized in that the drop ball (15) has a guide tube made of insulating material and provided inside the insulator (11) (16 resp.

   21) through which the falling ball is led to the switch (17 or 23).

 

Claims (1)

2. Explosionsschutzvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Führungsrohr (16 bzw. 21) für die Fallkugel (15) gebogen ist. 2. Explosion protection device according to claim 1, characterized in that the guide tube (16 or 21) is bent for the drop ball (15). 3. Explosionsschutzvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in der Wandung eines Wandlerkessels (10) unterhalb des Isolators (11) ein schräger, an seinem Aussenende mit einem Schauglas (18a) versehener Rohrstutzen (18) vorgesehen ist, in den der Auffangteil (17a) des Kippschalters (17) die aus dem Führungsrohr ausgetretene Fallkugel (15) rollen lässt, wenn der Kippschalter durch diese letztere betätigt wird, so dass ein Funktionieren der Schutzvorrichtung von aussen sichtbar ist. 3. Explosion protection device according to claim 1 or 2, characterized in that in the wall of a converter boiler (10) below the insulator (11) an inclined pipe socket (18) provided at its outer end with a sight glass (18a) is provided in which the Catching part (17a) of the toggle switch (17) lets the drop ball (15) that has emerged from the guide tube roll when the toggle switch is actuated by the latter, so that the functioning of the protective device is visible from the outside.
AT838958A 1957-12-21 1958-12-03 Explosion protection device on electrical equipment that contains a liquid insulation medium AT209404B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH209404X 1957-12-21

Publications (1)

Publication Number Publication Date
AT209404B true AT209404B (en) 1960-06-10

Family

ID=4446491

Family Applications (1)

Application Number Title Priority Date Filing Date
AT838958A AT209404B (en) 1957-12-21 1958-12-03 Explosion protection device on electrical equipment that contains a liquid insulation medium

Country Status (1)

Country Link
AT (1) AT209404B (en)

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