DE471184C - Winding structure for transformers with a high-voltage winding layered from individual coils and individual metal cylinders arranged concentrically to this winding and isolated from one another - Google Patents
Winding structure for transformers with a high-voltage winding layered from individual coils and individual metal cylinders arranged concentrically to this winding and isolated from one anotherInfo
- Publication number
- DE471184C DE471184C DEA41396D DEA0041396D DE471184C DE 471184 C DE471184 C DE 471184C DE A41396 D DEA41396 D DE A41396D DE A0041396 D DEA0041396 D DE A0041396D DE 471184 C DE471184 C DE 471184C
- Authority
- DE
- Germany
- Prior art keywords
- winding
- individual
- transformers
- voltage
- isolated
- 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
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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
Description
Wicklungsaufbau für Transformatoren mit einer aus einzelnen Spulen geschichteten Hochspannungswicklung und konzentrisch zu dieser Wicklung angeordneten, voneinander isolierten einzelnen Metallzylindern Die Oberspannungswicklung von Transformatoren hoher Spannung wird gewöhnlich so aufgebaut, daß einzelne Spulen, auf deren jede ein gleicher Teil der Gesamtspannung entfällt, aufeinandergeschichtet werden. Dadurch, daß dies Aufeinanderschichten unter Zwischenschaltung von Isolationsstücken. @erfolgt, bilden die Erzeugenden. des so entstehenden Wicklungszylinders keine geschlossenen, sondern häufig unterbrochene Linien. Jede Unterbrechungsstelle stellt eine scharfe Kante dar, die die überschlagsspannung zwischen der Hochspannungswicklung und den benachbarten Teilen anderen Potentials herabsetzt. Wäre die Spannung längs der Hochspannungswicklung überall gleich, dann brauchte man die Wicklung nur mit einem Metallzylinder zu umgeben, der, mit einem Punkt der Wicklung verbunden, alle Ungleichheiten in der Feldverteilung aufheben würde. Ein solcher Zylinder läßt sich nicht anbringen, da zwischen der untersten und der obersten Spule der ganze Betrag der Phasenspannung herrscht.Winding structure for transformers with one of individual coils layered high-voltage winding and arranged concentrically to this winding, individual metal cylinders isolated from each other. The high-voltage winding of transformers high voltage is usually built up in such a way that individual coils, on each of which an equal part of the total voltage is omitted, are stacked on top of one another. Through this, that this is stacked with the interposition of pieces of insulation. @he follows, form the generators. of the resulting winding cylinder no closed, but often broken lines. Each interruption point represents a sharp one Edge represents the withstand voltage between the high voltage winding and the adjacent parts of other potential. Would be the voltage across the high voltage winding the same everywhere, then you only need to surround the winding with a metal cylinder, which, connected to one point of the winding, all inequalities in the field distribution would cancel. Such a cylinder cannot be attached because between the the lowest and the uppermost coil, the entire amount of the phase voltage prevails.
Um trotzdem eine gleichmäßige Feldverteilung zu erreichen, hat man bereits vorgeschlagen, das Isolierrnaberial zwischen Hoch-und Niederspannungswicklung aus abwechselnden Schichten von elektrisch schlecht- und gutleitendem Material zusammenzusetzen und die leitenden Schichten mit entsprechenden Punkten der Hochspannungswicklung zu verbinden. Ferner ist es bekannt, in die Isolation untereinanderliegende Ringe einzubetten, die sowohl miteinander wie auch mit der Hochspannungswicklung in Verbindung stehen.In order to still achieve a uniform field distribution, one has already proposed, the Isolierrnaberial between high and low voltage winding to be composed of alternating layers of electrically poorly and highly conductive material and the conductive layers with corresponding points on the high voltage winding connect to. It is also known to use rings lying one below the other in the insulation to embed, which are in connection with each other as well as with the high voltage winding stand.
Alle diese Anordnungen besitzen aber den Nachteil, daß sich die Verbindungen zwischen Wicklung und leitenden Einlagen nur schwer herstellen lassen und die hierzu teilweise erforderliche Durchbrechung des Isoliermaterials die wirksame Wandstärke desselben bedeutend herabsetzt. ' Gemäß der Erfindung erreicht man eine gleichmäßige Feldverteilung dadurch, daß man in die Isolation eine Anzahl kleiner, gegeneinander isolierter Metallzylinder einbettet, die sich zweckmäßig, um die beabsichtigte Wirkung zu erhöhen, gegenseitig überlappen und zur Verbesserung der Isolation in ein besonderes Isolationsmaterial eingelegt sind. Beispielsweise kann man in einen Zylinder aus Hartpapier Stanniolstreifen beim Wickeln einlaufen lassen. Der Vorteil der Erfindung gegenüber bekannten Einrichtungen ähnlicher Art besteht darin, daß infolge der besonderen Anordnung der Metalleinlagen die sonst erforderlichen Verbindungen mit derHochspannungswicklung . in Fortfall kommen.However, all these arrangements have the disadvantage that the connections between winding and conductive inserts can only be produced with difficulty and this partially required breakthrough of the insulating material the effective wall thickness the same significantly reduces. 'According to the invention one achieves a uniform Field distribution by having a number smaller in the insulation, against each other insulated metal cylinder embeds, which is expedient to the intended effect to increase, overlap each other and improve isolation in a particular Insulation material are inserted. For example, one can look into a cylinder Laminated paper let tinfoil strips run in while wrapping. The advantage of the invention compared to known facilities of a similar type is that due to the special Arrangement of the metal inserts the otherwise required connections with the high-voltage winding . come in failure.
Die- Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. Mit a sind die einzelnen Hochspannungsspulen bezeichnet, an denen sich die scharfen Kanten b befinden; c ist ein konzentrisch zur Hochspannungswicklung angeordneter Zylinder aus Isoliermaterial. In diesen sind die Metallbelege 9 in Form von nicht geschlossenen Ringen eingebettet; e ist ein Konstruktionsteil anderen Potentials, zu welchem hin überschläge von der Hochspannungswicklung aus zu befürchten sind, z. B. der Eisenkern oder ein Niederspannungswicklungszylinder.The drawing shows an embodiment of the invention. With a are the individual high-voltage coils on which the sharp edges are called b located; c is a cylinder arranged concentrically to the high-voltage winding made of insulating material. In these, the metal documents 9 are in the form of not closed Embedded rings; e is a construction part of other potential towards which flashovers from the high-voltage winding are to be feared, e.g. B. the iron core or a low voltage winding cylinder.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA41396D DE471184C (en) | Winding structure for transformers with a high-voltage winding layered from individual coils and individual metal cylinders arranged concentrically to this winding and isolated from one another |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA41396D DE471184C (en) | Winding structure for transformers with a high-voltage winding layered from individual coils and individual metal cylinders arranged concentrically to this winding and isolated from one another |
Publications (1)
Publication Number | Publication Date |
---|---|
DE471184C true DE471184C (en) | 1929-02-15 |
Family
ID=6932504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA41396D Expired DE471184C (en) | Winding structure for transformers with a high-voltage winding layered from individual coils and individual metal cylinders arranged concentrically to this winding and isolated from one another |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE471184C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971609C (en) * | 1940-07-11 | 1959-02-26 | Aeg | Winding structure for transformers and reactors |
EP0112482A1 (en) * | 1982-11-25 | 1984-07-04 | Holec Systemen En Componenten B.V. | Coiling device for dry-type transformers |
EP0656636A1 (en) * | 1993-12-01 | 1995-06-07 | Robert Bosch Gmbh | Transformer with shielding and its use |
WO2011029475A1 (en) * | 2009-09-11 | 2011-03-17 | Robert Bosch Gmbh | Safety shielding in planar transformer |
-
0
- DE DEA41396D patent/DE471184C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971609C (en) * | 1940-07-11 | 1959-02-26 | Aeg | Winding structure for transformers and reactors |
EP0112482A1 (en) * | 1982-11-25 | 1984-07-04 | Holec Systemen En Componenten B.V. | Coiling device for dry-type transformers |
EP0656636A1 (en) * | 1993-12-01 | 1995-06-07 | Robert Bosch Gmbh | Transformer with shielding and its use |
WO2011029475A1 (en) * | 2009-09-11 | 2011-03-17 | Robert Bosch Gmbh | Safety shielding in planar transformer |
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