CH270165A - Insulation for multi-layer windings. - Google Patents

Insulation for multi-layer windings.

Info

Publication number
CH270165A
CH270165A CH270165DA CH270165A CH 270165 A CH270165 A CH 270165A CH 270165D A CH270165D A CH 270165DA CH 270165 A CH270165 A CH 270165A
Authority
CH
Switzerland
Prior art keywords
insulation
layer
windings
layer windings
voltage
Prior art date
Application number
Other languages
German (de)
Inventor
Oerlikon Maschinenfabrik
Original Assignee
Oerlikon Maschf
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 Oerlikon Maschf filed Critical Oerlikon Maschf
Publication of CH270165A publication Critical patent/CH270165A/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/323Insulation between winding turns, between winding layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

  

      Isolierung   <B>für</B>     mehrlagige   <B>Wicklungen.</B>    Bei einer Isolierung für     mehrlagige    Wick  lungen nach dem Hauptpatent ist es notwen  dig, um günstige räumliche     Abmessungen    und  Gewichte zu erhalten, das Verhältnis
EMI0001.0005  
   in  gewissen Grenzen zu halten, wo l die Länge  einer Wicklungslage und L die     Lagenzahl    ist.

    Massgebend ist die     Lagenspannung        UL,    die  sich aus folgender Gleichung bestimmt, wenn  <I>U</I> die ganze Spannung der Wicklung und<I>p</I>  der     Proportionalitätsfaktor    ist:  
EMI0001.0010     
    Macht man L gross, um eine kleine Lagen  spannung zu erhalten, so erhält man eine  kurze, dicke Spule mit grosser Streuung.  Wählt man anderseits eine kleine     Lagenzahl,     so wird die     Lagenspannung    zu hoch. Eine  hohe     Lagenspannung    bedingt einen grossen       Überschlagsweg    zwischen :den Lagen.

   Da die       Überschlagaspannung    proportional     d0,4    an  steigt, wenn d die Dicke der     Lagenisolation     ist, bedingt eine hohe     Lagenspannung    einen  grossen Aufwand an     Lagenisolation.     



  Gemäss der vorliegenden Erfindung ist  eine wesentliche Verbesserung möglich, indem    die Teilwicklungen je in     zwei    oder mehr Ab  teilungen aufgeteilt werden, die miteinander  in Serie geschaltet sind, wie dies die beilie  gende, ein Ausführungsbeispiel der Erfin  dung betreffende Figur schematisch zeigt.

    Darin ist 1 der     Eisenkern    und 2 die     Unter-          spannungswcklung.    Die     Oberspannungswick-          lung    besteht aus zwei Teilwicklungen 3 und  3', die je in zwei Abteilungen 3a, 3b und     3'a,          3'b    aufgeteilt sind. 4 und 4' sind die     Isolier-          mäntel    der Teilwicklungen.  



  Infolge der oben genannten Beziehung  zwischen der     Lagenisolationsdieke    und der       Überschlagsspannung        erhält    man bei glei  chen räumlichen Abmessungen und gleicher       Windungszahl    der Teilwicklungen wesentlich  grössere     Randüberschlagswege    und damit eine  wesentlich grössere Sicherheit.



      Insulation <B> for </B> multi-layer <B> windings. </B> In the case of insulation for multi-layer windings according to the main patent, the ratio is necessary in order to obtain favorable spatial dimensions and weights
EMI0001.0005
   to be kept within certain limits, where l is the length of a winding layer and L is the number of layers.

    The decisive factor is the layer voltage UL, which is determined from the following equation if <I> U </I> is the entire voltage of the winding and <I> p </I> is the proportionality factor:
EMI0001.0010
    If you make L large in order to obtain a small layer tension, you get a short, thick coil with a large spread. On the other hand, if a small number of layers is selected, the layer tension becomes too high. A high layer tension requires a large rollover path between: the layers.

   Since the flashover voltage increases proportionally d0.4 when d is the thickness of the layer insulation, a high layer voltage requires a great deal of layer insulation.



  According to the present invention, a substantial improvement is possible in that the partial windings are each divided into two or more divisions that are connected in series with one another, as shown schematically in the figure relating to an embodiment of the invention.

    1 is the iron core and 2 is the low voltage winding. The high-voltage winding consists of two partial windings 3 and 3 'which are each divided into two compartments 3a, 3b and 3'a, 3'b. 4 and 4 'are the insulating sheaths of the partial windings.



  As a result of the above-mentioned relationship between the layer insulation thickness and the flashover voltage, with the same spatial dimensions and the same number of turns of the partial windings, significantly larger edge flashover paths and thus significantly greater safety are obtained.

 

Claims (1)

PATENTANSPRUCH: Isolierung für mehrlagige Wicklungen nach dem Patentanspruch I des Hauptpaten tes, dadurch gekennzeichnet, dass die Teil wicklungen je wenigstens in zwei Abteilun gen aufgeteilt sind, die miteinander in Serie geschaltet sind. PATENT CLAIM: Insulation for multi-layer windings according to patent claim I of the main patent, characterized in that the partial windings are each divided into at least two Abteilun conditions which are connected in series with one another.
CH270165D 1948-11-29 1948-11-29 Insulation for multi-layer windings. CH270165A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH270165T 1948-11-29
CH255813T 1948-11-29

Publications (1)

Publication Number Publication Date
CH270165A true CH270165A (en) 1950-08-15

Family

ID=25729926

Family Applications (1)

Application Number Title Priority Date Filing Date
CH270165D CH270165A (en) 1948-11-29 1948-11-29 Insulation for multi-layer windings.

Country Status (1)

Country Link
CH (1) CH270165A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182340B (en) * 1961-05-26 1964-11-26 Messwandler Bau Gmbh Transformer for high and very high voltages, especially test transformer or voltage converter in insulating jacket construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182340B (en) * 1961-05-26 1964-11-26 Messwandler Bau Gmbh Transformer for high and very high voltages, especially test transformer or voltage converter in insulating jacket construction

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