CH257220A - Potential-controlled multi-layer winding for transformers. - Google Patents

Potential-controlled multi-layer winding for transformers.

Info

Publication number
CH257220A
CH257220A CH257220DA CH257220A CH 257220 A CH257220 A CH 257220A CH 257220D A CH257220D A CH 257220DA CH 257220 A CH257220 A CH 257220A
Authority
CH
Switzerland
Prior art keywords
layer winding
potential
layers
winding according
layer
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Moser-Glaser Co
Original Assignee
Moser Glaser & Co Ag
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 Moser Glaser & Co Ag filed Critical Moser Glaser & Co Ag
Publication of CH257220A publication Critical patent/CH257220A/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
    • H01F27/288Shielding
    • H01F27/2885Shielding with shields or electrodes

Description

  

  Potentialgesteuerte     melirlagige    Wicklung für Transformatoren.    Potentialgesteuerte     mehrla.gige        Wicklun-          ;en    für Transformatoren sind bekannt, und  man weiss, dass bei sehr naher Aufeinander  folge der     Lagenenden    in     durchschlagfesten     Körpern,     wie    z. B.<B>01,</B> sehr hohe     Überschlags-          @iadienten        gemessen    werden.

   Jede     Ra.nd-          %%-indung    gibt     Anlass    zu einer Konzentration  des elektrischen     Feldes    an ihrer Oberfläche.  Diese ist; um so kleiner, je näher die     Ran.d-          E%-indungeri,    einander folgen.  



  Für hohe     Spannungen    nehmen die Draht  lagen eine Länge an, bei der die Spannungs  differenz zwischen     zwei    benachbarten Lagen  enden so gross wird,     da.ss    die     Drähte    an den       La.genenden    unter Umständen glimmen, dass  ferner ihr Abstand zu gross sein     muss,    als     dass     noch eine genügend vollkommene     Oberflä-          cliensteuerung    erfolgt.

   Der     Überschlagsgra-          dient    ist dann wesentlich kleiner als bei fei  ner Steuerung, d. h. als bei dichter Folge der       rlieta.llisehen        Lagenränder.     



  Nach der Erfindung werden diese Un  zuträglichkeiten dadurch behoben,     da-ss    zwi  schen je zwei aufeinanderfolgende     Windungs-          lagen    mindestens eine leitende Schicht mit  einem Steuerpotential angeordnet ist, von     oder     sich wenigstens der äussere Rand in der     kegel-          förmigen.    Frontseite der Drahtlagen befindet.       Diese    Schicht kann aus einer nicht in sich       selbst    geschlossenen leitenden Folie,     einem          graphitie:rten    Papier oder     einem    aufgewickel  ten Draht bestehen.  



  Die Zwischenschichten können ihr Steuer  potential dadurch erhalten, dass sie in leiten-    der Verbindung mit einer entsprechenden       Spulenwindung    stehen oder durch     kapazitive     Kopplung mit den beidseitigen Drahtlagen.  



  Für eine besonders feine Potentialsteue  rung der     Spulenfrontseite    sind unter Um  ständen die Drähte zu dick. Die Steuerung  kann in diesem Falle ausschliesslich leitenden  Folien übertragen werden, welche axial etwas  über die Drahtlagen vorragen, wobei wieder  um die Kopplung mit den Drahtlagen     kapa-          zitiv    sein kann oder     ohmisch.    Die gleich  mässige Distanzierung der     Steuereinlägen    er  folgt durch Zwischenisolationen, z. B. Pa  piere. Solche Zwischenisolationen sind bei  allen gesteuerten Spulen für die nötigen Di  stanzierungen und     Raumausfüllungen    an  gebracht.  



  Da es nicht leicht     ist,    Spulen so zu     wik-          keln,    dass die Drähte in einem genügend ge  nauen Begrenzungskegel enden, ist folgendes  Herstellungsverfahren zweckmässig. Zwischen  aufeinanderfolgenden Lagen werden, von die  sen. isoliert, Steuerfolien eingelegt, welche       axial    vorstehen. Die     fertige        ,Spule;    wird auf  die genauen Masse der Frontfläche abgedreht.  Mit den Steuerfolien muss stets eine isolie  rende Bahn so eingelegt werden, dass Kurz  schlusswindungen vermieden werden.  



  Es ist für die Potentialsteuerung     wichtig,     dass die     gesteuerten    Randflächen keine     Be-          schädigungen,,erfahren.        Dies    kann vermieden  werden durch eine mechanische Verfestigung,       bestehend    in einer     Imprägnierung    der Wick-      Jung mit einem     Kunstharz.    Als solches eig  nen     ,sich    besonders die     Niederdruckharze.     



  Die Abbildungen zeigen Ausführungsbei  spiele des     Erfindungsgegenstandes.     



  Es bedeuten 1 die Drahtwindungen, 2 .die  leitenden     Zwischenlagen,    3 das     Isoliermate-          rial        im    Innern der Spule, 4 das Isoliermate  rial ausserhalb der Spule, das z. B. Luft oder  ein     Pressgas    sein kann, oder<B>01</B> oder ein       Niederdruckharz.     



  In     Abb.    1     und    3 sind die     Zwischenein-          lagen    leitend     mit        einer    Windung verbunden,  in     Abb.    2 besteht nur eine     kapazitive        Kopp-          lung,    wobei in     Abb.    1 und 2 zwischen je  zwei Drahtwindungen     nur    eine     Zwischenlage     angebracht ist, in     Abb.    3 je deren einige.



  Potential-controlled multi-layer winding for transformers. Potential-controlled multi-layer windings for transformers are known, and it is known that with very close succession, the layer ends in dielectric-proof bodies, such as B. <B> 01, </B> very high rollover @iadients can be measured.

   Every edge - %% - induction gives rise to a concentration of the electric field on its surface. This is; the smaller the closer the Ran.d- E% connections follow one another.



  For high voltages, the wire layers assume a length at which the voltage difference between two adjacent layers ends is so great that the wires at the ends of the layers may glow that their distance must also be too great a sufficiently perfect surface control still takes place.

   The rollover gradient is then significantly smaller than with fine control, i.e. H. than with a close succession of the rlieta.lli layer edges.



  According to the invention, these inconsistencies are eliminated in that at least one conductive layer with a control potential is arranged between every two successive winding layers, from or at least the outer edge in the conical shape. Front side of the wire layers is located. This layer can consist of a non-self-contained conductive film, graphitized paper or a wound wire.



  The intermediate layers can receive their control potential by being in conductive connection with a corresponding coil turn or by capacitive coupling with the wire layers on both sides.



  The wires may be too thick for particularly fine potential control of the coil front. In this case, the control can exclusively be transferred to conductive foils, which protrude axially somewhat over the wire layers, again being capacitive or ohmic around the coupling with the wire layers. The even distancing of the control deposits he follows through intermediate insulation, z. B. Papers. Such intermediate isolations are placed on all controlled coils for the necessary Di punching and space fills.



  Since it is not easy to wind coils in such a way that the wires end in a sufficiently precise limiting cone, the following manufacturing process is advisable. Between successive layers, of these sen. isolated, control foils inserted, which protrude axially. The finished, coil; is turned to the exact dimensions of the front surface. An insulating sheet must always be inserted with the control foils in such a way that short-circuit turns are avoided.



  It is important for the potential control that the controlled edge surfaces do not experience any damage. This can be avoided by mechanical reinforcement, consisting of impregnating the Wick-Jung with a synthetic resin. As such, the low-pressure resins are particularly suitable.



  The figures show exemplary embodiments of the subject matter of the invention.



  1 denotes the wire windings, 2 .the conductive intermediate layers, 3 the insulating material inside the coil, 4 the insulating mate rial outside the coil, the z. B. can be air or a compressed gas, or 01 or a low-pressure resin.



  In Fig. 1 and 3 the intermediate layers are conductively connected with one turn, in Fig. 2 there is only a capacitive coupling, whereas in Fig. 1 and 2 only one intermediate layer is attached between two wire windings, in Fig. 3 some of them.

 

Claims (1)

PATENTANSPRtCHE: I. Potentialgesteuerte m.ehxlagig.e Wick lung für Transformatoren, mit kegelförmigen Frontflächen, dadurch gekennzeichnet, dass sich zwischen zwei aufeinanderfolgenden Drahtlagen mindestens eine leitende Schicht mit einem Steuerpotential befindet, von der sich wenigstens der eine äussere Rand in der kegelförmigen Frontseite befindet. II. Verfahren. PATENT CLAIM: I. Potential-controlled m.ehxlagig.e winding for transformers, with conical front surfaces, characterized in that between two successive wire layers there is at least one conductive layer with a control potential, of which at least one outer edge is located in the conical front . II. Procedure. zur Herstellung der mehr- lagigen Wicklung nach Patentanspruch I, dadurch gekennzeichnet, dass man beim Wik- keln zwischen aufeinanderfolgenden Draht lagen von diesen und gegeneinander isolierte leitende Bahnen einlaufen lässt, welche axial vorstehen, und dass die fertige Spule auf die genauen Masse der Frontflächen. abgedreht wird. for the production of the multi-layer winding according to patent claim I, characterized in that when winding between successive wire layers of these and mutually insulated conductive paths, which protrude axially, and that the finished coil to the exact dimensions of the front surfaces. is turned off. UNTERANSPRÜCHE: 1. Mehrlagige Wicklung nach Patentan spruch I, dadurch gekennzeichnet, dass die Zwischenschichten in leitender Verbindung mit einer ihrem Potential entsprechenden Windung stehen. 2. Mehrlagige Wicklung nach Patentan- spruch I, dadurch gekennzeichnet, dass die Zwischenschichten mit den beidseitigen Drahtlagen nur kapazitiv so gekoppelt sind, dass sie das geeignete Potential erhalten. SUBClaims: 1. Multi-layer winding according to patent claim I, characterized in that the intermediate layers are in conductive connection with a turn corresponding to their potential. 2. Multi-layer winding according to Patent Claim I, characterized in that the intermediate layers are only capacitively coupled to the wire layers on both sides in such a way that they receive the appropriate potential. 3. Mehrlagige Wicklung nach Patentan spruch I, dadurch gekennzeichnet, dass die Zwischenschichten über die Drahtlagen vor stehen und durch Isoliermaterial voneinander distanziert sind. 3. Multi-layer winding according to patent claim I, characterized in that the intermediate layers are in front of the wire layers and are spaced from one another by insulating material. 4. Mehrlagige Wicklung nach Patentan spruch I, dadurch gekennzeichnet, dass die leitenden Zwischenschichten aus graphitier- tpm Papier bestehen,. 5. Mehrlagige Wicklung nach Patentan- spruch I, dadurch gekennzeichnet, dass die leitenden Zwischenschichten aus eingewickel tem Draht bestehen. 6. Mehrlaglge Wicklung nach Patentan spruch I, dadurch gekennzeichnet, dass die Wicklung mit einem Niederdruckharz im prägniert ist. 4. Multi-layer winding according to patent claim I, characterized in that the conductive intermediate layers consist of graphitized tpm paper. 5. Multi-layer winding according to claim I, characterized in that the conductive intermediate layers consist of wrapped wire. 6. Multi-layer winding according to patent claim I, characterized in that the winding is impregnated with a low-pressure resin.
CH257220D 1947-02-07 1947-02-07 Potential-controlled multi-layer winding for transformers. CH257220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH257220T 1947-02-07

Publications (1)

Publication Number Publication Date
CH257220A true CH257220A (en) 1948-09-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CH257220D CH257220A (en) 1947-02-07 1947-02-07 Potential-controlled multi-layer winding for transformers.

Country Status (1)

Country Link
CH (1) CH257220A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047302B (en) * 1953-10-24 1958-12-24 Koch & Sterzel Kommanditgesell Method for manufacturing a transformer, in particular a measuring transducer
DE1155853B (en) * 1961-02-08 1963-10-17 Siemens Ag In a cast resin body embedded high voltage winding for transformers, converters or the like.
DE1247470B (en) * 1962-05-15 1967-08-17 Koch & Sterzel Wandler Und Tra Cast resin insulated transducer for high and very high voltages
DE1253354B (en) * 1962-02-27 1967-11-02 Siemens Ag Process for the production of a high-voltage winding embedded in cast resin for transformers, converters or the like. Induction devices
DE1253355B (en) * 1964-11-05 1967-11-02 Westinghouse Electric Corp Transformer, choke coil or the like induction device
DE1270167B (en) * 1962-11-27 1968-06-12 Licentia Gmbh Winding embedded in cast resin for power transformers in dry construction
DE1287201B (en) * 1963-03-08 1969-01-16 Robert Birkenbeul Gmbh Process for the production of transformer coil bodies
WO2000041191A1 (en) * 1998-12-30 2000-07-13 Square D Company High frequency snubber for transformers

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047302B (en) * 1953-10-24 1958-12-24 Koch & Sterzel Kommanditgesell Method for manufacturing a transformer, in particular a measuring transducer
DE1155853B (en) * 1961-02-08 1963-10-17 Siemens Ag In a cast resin body embedded high voltage winding for transformers, converters or the like.
DE1253354B (en) * 1962-02-27 1967-11-02 Siemens Ag Process for the production of a high-voltage winding embedded in cast resin for transformers, converters or the like. Induction devices
DE1247470B (en) * 1962-05-15 1967-08-17 Koch & Sterzel Wandler Und Tra Cast resin insulated transducer for high and very high voltages
DE1270167B (en) * 1962-11-27 1968-06-12 Licentia Gmbh Winding embedded in cast resin for power transformers in dry construction
DE1287201B (en) * 1963-03-08 1969-01-16 Robert Birkenbeul Gmbh Process for the production of transformer coil bodies
DE1253355B (en) * 1964-11-05 1967-11-02 Westinghouse Electric Corp Transformer, choke coil or the like induction device
WO2000041191A1 (en) * 1998-12-30 2000-07-13 Square D Company High frequency snubber for transformers

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