DE509621C - Iron core for electrical transformers, which consists of packages of individual sheets and whose yoke packages are layered in the side packages - Google Patents
Iron core for electrical transformers, which consists of packages of individual sheets and whose yoke packages are layered in the side packagesInfo
- Publication number
- DE509621C DE509621C DEA47796D DEA0047796D DE509621C DE 509621 C DE509621 C DE 509621C DE A47796 D DEA47796 D DE A47796D DE A0047796 D DEA0047796 D DE A0047796D DE 509621 C DE509621 C DE 509621C
- Authority
- DE
- Germany
- Prior art keywords
- packages
- layered
- iron core
- individual sheets
- electrical transformers
- 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
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
Description
Eisenkern für elektrische Transformatoren, der aus Paketen von Einzelblechen besteht und dessen Jochpakete in die Schenkelpakete eingeschichtet sind Es ist bekannt, die Einzelbleche elektrischer Transformatoren zu Paketen zusammenzusetzen und aus diesen Paketen Schenkel und Joche in der Weise aufzubauen, daß die Jochpakete in die Schenkelpakete eingeschichtet werden. Abb. r ist eine Ansicht eines derartigen fertigen Transformatorkerns in Richtung der den einzelnen Schenkeln gemeinsamen Ebene. a sind die aus Einzelblechen zusammengefügten Pakete, zwischen die die Jochpakete b eingeschichtet sind. An den Berührungsstellen c der Schenkel- und Jochpakete werden infolge des erhöhten magnetischen Widerstandes die normalerweise in Richtung der Linien d verlaufenden Kraftlinien abgedrängt, so daß sie, wie durch die Linien e angedeutet, in die benachbarten Schenkelpakete übertreten, wo sie zusätzliche Verluste hervorrufen.Iron core for electrical transformers, made from packages of individual sheets exists and whose yoke packages are layered in the leg packages It is known assemble the individual sheets of electrical transformers into packages and take them off to build these packages legs and yokes in such a way that the yoke packages in the leg packages are layered. Fig. R is a view of one such finished transformer core in the direction of the common to the individual legs Level. a are the packets assembled from individual sheets between which the yoke packets b are layered. At the contact points c of the leg and yoke packages due to the increased magnetic reluctance which is normally in the direction of the Lines d displaced running lines of force, so that they, as by the lines e indicated to pass into the neighboring leg packets, where they cause additional losses cause.
Man könnte diesem Übelstand dadurch abhelfen, daß man, wie in Abb. 2 dargestellt, zwischen die Schenkelpakete in bekannter Weise eine Schicht aus urimagnetischem Material f einfügt. Dadurch finden die abirrenden Kraftlinien e einen so großen Widerstand, daß ihr Entstehen unmöglich wird und der ganze Fluß nach den Linien d verläuft. Diese Anordnung hat aber den großen Nachteil, daß durch die Isolationszwischenlagen f der Eisenfüllfaktor heruntergesetzt wird. Erfindungsgemäß wird die Isolation nicht über die ganze Schenkellänge, sondern nur an den Stellen angeordnet, an denen parallel zur Schichtebene die Schenkel- und Jochpakete einander berühren. Dadurch wird der Füllfaktor wohl in den Jochen, nicht aber in den Schenkeln verschlechtert. Auf letzteren kommt es aber allein an, weil dieser den Umfang des Kernes und dadurch die mittlere Windungslänge der Wicklungen bestimmt.One could remedy this problem by, as shown in Fig. 2, between the leg packs in a known manner a layer of urimagnetic Material f inserts. This is how the stray lines of force e find such a large one Resistance that their creation is impossible and the whole flow along the lines d runs. However, this arrangement has the major disadvantage that the insulating interlayers f the iron fill factor is reduced. According to the invention, the insulation is not over the entire length of the leg, but only at the points where they are parallel the leg and yoke packages touch each other at the layer level. This will make the Fill factor probably in the yokes, but not deteriorated in the thighs. On the latter but it matters only because this is the circumference of the core and therefore the middle one Winding length of the windings determined.
In Abb. 3 ist ein nach der Erfindung zusammengesetzter Eisenkern dargestellt. Die Zwischenlagen f gehen nur so weit, wie die Joche reichen. Der von den Wicklungen bedeckte Teil der Schenkel Jedoch ist vollständig frei davon.In Fig. 3 an assembled iron core according to the invention is shown. The intermediate layers f only go as far as the yokes extend. The one from the windings covered part of the thighs, however, is completely free of it.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA47796D DE509621C (en) | Iron core for electrical transformers, which consists of packages of individual sheets and whose yoke packages are layered in the side packages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA47796D DE509621C (en) | Iron core for electrical transformers, which consists of packages of individual sheets and whose yoke packages are layered in the side packages |
Publications (1)
Publication Number | Publication Date |
---|---|
DE509621C true DE509621C (en) | 1930-10-10 |
Family
ID=6935992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA47796D Expired DE509621C (en) | Iron core for electrical transformers, which consists of packages of individual sheets and whose yoke packages are layered in the side packages |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE509621C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1035752B (en) * | 1953-09-26 | 1958-08-07 | Bernhard Philbert | Layer core for transformers, inductors, etc. like |
DE1067523B (en) * | 1954-10-11 | 1959-10-22 | Licentia Gmbh | Multi-leg laminated iron core for large transformers |
EP0077487A1 (en) * | 1981-10-16 | 1983-04-27 | Transformatoren Union Aktiengesellschaft | Iron core for transformers |
-
0
- DE DEA47796D patent/DE509621C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1035752B (en) * | 1953-09-26 | 1958-08-07 | Bernhard Philbert | Layer core for transformers, inductors, etc. like |
DE1067523B (en) * | 1954-10-11 | 1959-10-22 | Licentia Gmbh | Multi-leg laminated iron core for large transformers |
EP0077487A1 (en) * | 1981-10-16 | 1983-04-27 | Transformatoren Union Aktiengesellschaft | Iron core for transformers |
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