DE731301C - High voltage transformer, especially voltage converter - Google Patents

High voltage transformer, especially voltage converter

Info

Publication number
DE731301C
DE731301C DEA83873D DEA0083873D DE731301C DE 731301 C DE731301 C DE 731301C DE A83873 D DEA83873 D DE A83873D DE A0083873 D DEA0083873 D DE A0083873D DE 731301 C DE731301 C DE 731301C
Authority
DE
Germany
Prior art keywords
voltage
wire
coils
voltage transformer
cable
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
Application number
DEA83873D
Other languages
German (de)
Inventor
August Meyerhans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DEA83873D priority Critical patent/DE731301C/en
Application granted granted Critical
Publication of DE731301C publication Critical patent/DE731301C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/24Voltage transformers
    • H01F38/26Constructions

Landscapes

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

Description

Hochspannungstransformator, insbesondere Spannungswandler Es ist bekannt, handelsübliche isolierte Kabel für die Wicklung von Transformatoren zu verwenden. Es ist ferner bekannt, die auf dem Bern eines Hochspannungstransformators außenliegende Oberspannungswicklung, die aus einzelnen, voneinander getrennten Scheibenspulen besteht, von der innen auf dem Kern liegenden LTnterspannungswicklung, die man als zusammenhängende Zylinderwicklung auszuführen pflegt, durch Isolierrohre zu trennen. Diese können entsprechend der Potentialverteilung abgestuft sein: auch kann man ihr Potential durch Metalleinlagen steuern, die bisher als Folien oder Blechzylinder oder auch als einen Teil der Transformatorwicklung ausgebildete Drahtwicklung ausgebildet waren. Bei diesen lassen sich an den Enden der Beläge die ungünstigen elektrischen Beanspruchungen in der Schichtrichtung der Isolierzylinder nicht vermeiden. Zudem bietet das Herausführen von Anschlüssen der Beläge bei satt gewickelten Isolierkörpern große Schwierigkeiten. Schließlich ist es bekannt, an die beiden Enden einer Zylinderwicklung noch Scheibenspulen anzufügen, wobei die zwischen den Spulen angeordnete Isolation ebenfalls im Querschnitt U-förmig ist.High voltage transformer, especially voltage converter It is known Use commercially available insulated cables for winding transformers. It is also known that the outside on the Bern of a high voltage transformer High-voltage winding consisting of individual, separate disc coils consists of the low voltage winding lying on the inside of the core, which is called Carry out a coherent cylinder winding, separated by insulating tubes. These can be graded according to the potential distribution: you can too control their potential through metal inserts, which were previously available as foils or sheet metal cylinders or also formed as a part of the transformer winding formed wire winding was. With these, the unfavorable electrical ones can be found at the ends of the pads Do not avoid stresses in the direction of the layers of the insulating cylinder. In addition offers the lead out of connections of the coverings with tightly wound insulating bodies great difficulties. Finally, it is known to attach to the two ends of a cylinder winding still add disc coils, whereby the insulation arranged between the coils is also U-shaped in cross section.

Die genannten Schwierigkeiten werden überwunden, wenn man nach der Erfindung die leitenden Beläge in der Isolation der in axial übereinanderliegende Einzelspulen unterteilten Oberspannungswicklung gegen die konzentrisch gelegene 1Tnterspannungswicklung oder gegen Teile des Eisenkernes durch zylindrisch gewickelte, mindestens für die gesamte Spulenspannung nach Art eines Isabels'isolierte Drahtlagen von gegenüber der "'indüngszahl der Oberspannungsspulen sehr geringer Windungszahl bildet, deren., Metallseele mit passenden Punkten der Oberspannungswicklung verbunden ist. Die Erfindung macht sich die Tatsache zunutze, daß die Isolation von Drähten und Kabeln verhältnismäßig die höchstwertige Isolation darstellt, die es heute gibt, und daß bei ihr elektrische Beanspruchungen ausschließlich quer zur Schichtrichtung des Isolierstoffes auftreten. Die bisher verwendeten Isolierzylinder aus gewickeltem Preßstoff o. dgl. fallen dadurch fort. Um auch an der Oberfläche des isolierenden Drahtlagenkörpers geschichtete und somit Kriechwege begünstigende Isolierteile zu vermeiden, werden nach der Erfindung die einzelnen Scheibenspulen der Oberspannungswicklung von Isolierstegen aus keramischem Werkstoff getragen, die außerhalb des Spulenumfanges befestigt sind.The aforementioned difficulties are overcome if one goes after the Invention the conductive coatings in the insulation of the axially superimposed High-voltage winding subdivided into individual coils against the concentrically located one 1 Low voltage winding or against parts of the iron core by means of cylindrically wound, At least for the entire coil voltage in the manner of an Isabel's insulated wire layers of a very low number of turns compared to the number of turns of the high-voltage coils forms whose., metal core with matching points of the high-voltage winding connected is. The invention makes use of the fact that the insulation of wires and cables is relatively the highest quality insulation that there is today, and that with it electrical stresses exclusively transverse to Layer direction of the insulating material occur. The insulating cylinders used so far made of wound molded material or the like are thus eliminated. To also on the surface layers of the insulating wire layer body and thus favoring creepage paths To avoid insulating parts, according to the invention, the individual disc coils the high-voltage winding is supported by insulating bars made of ceramic material, which are attached outside of the coil circumference.

In der Zeichnung ist der beispielsweise Aufbau eines Spannungswandlers nach der Erfindung dargestellt, und zwar zeit Fig. i schematisch eine symmetrische Spulenverteilung und Fig. z eine unsymmetrische Anordnung mit Potentialausgleich durch einfache Ringe, während Fig.3 und d veranschaulichen, 'in welcher Weise die Oberspannungsspulen getragen werden. Über den Eisenkern a ist gemäß Fig. i die @interspannungswicklung h als Zylinderspule geschoben. Zwischen ihr und den Spulen c der Oberspannungswicklung, deren Hochspannungsklemme (l in der Mitte und deren geerdete Klemme e am Ende des Wandlers liegt, sind als Spulenverbindung isolierende Drahtlagen f mit nach der Mitte zu abnehmender Länge angeordnet, die die abgestufte Isolation zwischen den beiden Wicklungen b und c bilden. Gemäß Fig. a. reicht der bewickelte Teil des Wandlers in bekannter Weise nur bis zur Mitte des Schenkels a, dessen andere Hälfte von Potentialaus', g umgeben ist.The drawing shows, for example, the structure of a voltage converter shown according to the invention, namely time Fig. i schematically a symmetrical Coil distribution and FIG. Z an asymmetrical arrangement with equipotential bonding by simple rings, while Fig.3 and d illustrate 'in what way the High voltage coils are worn. The internal voltage winding is located over the iron core a according to FIG h pushed as a solenoid. Between it and the coils c of the high-voltage winding, their high-voltage terminal (l in the middle and their grounded terminal e at the end of the Converter is located, insulating wire layers f with after the coil connection are Arranged in the middle to decreasing length, providing the graduated insulation between the form two windings b and c. According to Fig. A. the wound part of the converter is sufficient in a known way only up to the middle of the leg a, the other half of which is from Potentialaus', g is surrounded.

Zum Tragen der Oberspannungsspulen c dienen gemäß Fig. ; und .1 Hartpapierrolire h, auf «-elche Porzellanstege i aufgereiht sind. Je nach dem Durchmesser der Spulen wird man drei oder mehr Tragrohre lx nebst Stegen i am Umfang anordnen.To carry the high-voltage coils c are used according to FIG. and .1 hard paper rolls h, on «-which porcelain bars i are lined up. Depending on the diameter of the coils, three or more support tubes lx and webs i will be arranged on the circumference.

Selbstverständlich ist die Erfindung auch bei anderen Wicklungsanordnungen anwendbar, beispielsweise bei innen- oder zwischenliegender Oberspannungswicklun'-.The invention is of course also applicable to other winding arrangements applicable, for example with internal or intermediate high-voltage winding.

Claims (1)

PATENTANSPRÜCHE: i. Hochspannungstransformator, insbesondere Spannungswandler, mit in axial übereinanderliegende Scheibenspulen unterteilter Oberspannungswicklung, deren Spulen durch leitende, ans Drähttt#indungei: bestehende, in der Isolation zwischen Ober- und Unterspannungswicklung angeOrd-aete Beläge verbunden sind, dadurch gekennzeichnet, daß die leitenden Beläge nebst ihrer Isolation durch 7ylinrisch gewickelte, mindestens für die gesamte Spannung einer Einzelspule der Oberspannungswicklung nach Art eines Kabels isolierte Drahtlagen von gegenüber der Windungszahl der Oberspannungsspitlen sehr geringer Windungszahl gebildet werden. a. Hochspannungstransformator nach Anspruch i, dadurch gekennzeichnet. daß die Zahl der übereinandergewickelten zylindrischen Draht- oder Kabellagen von der Stelle der Oberspannungsklemmenach der Erdungsklemme hin abnimmt. ;. Hochspannungstransformator nach Anspruch i, dadurch gekennzeichnet, daß jeder leitende Belag nur aus einer einziäen Draht- oder Kabellabe besteht. Hochspannungstransformator nach Anspruch i, dadurch gekennzeichnet, daL> zwecks Vermeidung von kriechwegbildenden Abstützungen an der Oberfläche des isolierenden DrahtIagenkörpers die Oberspannungsspulen ausschließlich von Isolierstegen getragen werden.PATENT CLAIMS: i. High voltage transformer, especially voltage converter, with high-voltage winding divided into axially superimposed disc coils, their coils through conductive, ans wire # indungei: existing, in the insulation Between the high and low voltage winding arranged linings are connected, thereby characterized in that the conductive coverings in addition to their insulation by 7ylinrisch wound, at least for the entire voltage of a single coil of the high-voltage winding Wire layers insulated in the manner of a cable from the number of turns of the high voltage peak very low number of turns are formed. a. High voltage transformer according to claim i, characterized. that the number of coiled cylindrical Layers of wire or cable from the location of the high-voltage terminal to the ground terminal decreases towards. ;. High-voltage transformer according to Claim i, characterized in that that every conductive covering consists only of a single wire or cable lease. High voltage transformer according to claim i, characterized in that> in order to avoid creep path-forming The high-voltage coils are supported on the surface of the insulating wire-layer body are only supported by insulating bars.
DEA83873D 1937-08-08 1937-08-08 High voltage transformer, especially voltage converter Expired DE731301C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA83873D DE731301C (en) 1937-08-08 1937-08-08 High voltage transformer, especially voltage converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA83873D DE731301C (en) 1937-08-08 1937-08-08 High voltage transformer, especially voltage converter

Publications (1)

Publication Number Publication Date
DE731301C true DE731301C (en) 1943-02-05

Family

ID=6949019

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA83873D Expired DE731301C (en) 1937-08-08 1937-08-08 High voltage transformer, especially voltage converter

Country Status (1)

Country Link
DE (1) DE731301C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052551B (en) * 1956-08-24 1959-03-12 Dielektra Ag Current transformer for high and very high voltages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052551B (en) * 1956-08-24 1959-03-12 Dielektra Ag Current transformer for high and very high voltages

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