DE520293C - Compressed air-cooled transformer with cylinder coils - Google Patents

Compressed air-cooled transformer with cylinder coils

Info

Publication number
DE520293C
DE520293C DEA51065D DEA0051065D DE520293C DE 520293 C DE520293 C DE 520293C DE A51065 D DEA51065 D DE A51065D DE A0051065 D DEA0051065 D DE A0051065D DE 520293 C DE520293 C DE 520293C
Authority
DE
Germany
Prior art keywords
compressed air
yokes
cooled transformer
cylinder coils
transformer
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
DEA51065D
Other languages
German (de)
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA51065D priority Critical patent/DE520293C/en
Application granted granted Critical
Publication of DE520293C publication Critical patent/DE520293C/en
Expired legal-status Critical Current

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)
  • Transformer Cooling (AREA)

Description

Preßluftgekühlter Transformator mit Zylinderspulen Bei luftgekühlten Transformatoren unterstützt man häufig die Wärmeabgabe durch in die Wicklung geblasene Preßluft. Besteht die Wicklung aus konzentrischen Zylinderspulen, dann muß die Richtung der Preßluft mit der Spulenachse zusammenfallen. Ein Teil der beblasenen Stirnfläche der Wicklung wird hierbei durch die Joche bedeckt, und zwar in einer Breite gleich der Schichthöhe der Joche.Compressed air-cooled transformer with cylinder coils For air-cooled Transformers are often assisted in the dissipation of heat by blown into the winding Compressed air. If the winding consists of concentric cylinder coils, then the direction must be the compressed air coincide with the coil axis. Part of the inflated face the winding is covered here by the yokes, and in fact in the same width the layer height of the yokes.

Erfindungsgemäß werden Transformatoren verwendet, deren Joche parallel zu einer einzigen Ebene verlaufen und bei denen die Abmessung der Joche senkrecht zur Ebene der Bleche geringer als die der bewickelten Schenkel ist. Auf diese Weise sind die von dem Preßluftstrom getroffenen Spulenflächen erheblich vergrößert und die Kühlung wesentlich verbessert.According to the invention, transformers are used whose yokes are parallel run into a single plane and where the dimension of the yokes is perpendicular to the level of the sheets is less than that of the wound legs. In this way the coil areas hit by the compressed air flow are considerably enlarged and the cooling significantly improved.

Es sind zwar Manteltransformatoren mit vier Jochen und einem bewickelten Schenkel bekannt, bei denen die Jochbreite etwas kleiner ist als die Breite des bewickelten Schenkels. Diese Transformatoren kommen jedoch für Preßluftkühlung nicht in Frage; da durch die vier Joche eine zu große Spulenfläche abgedeckt wird.There are jacketed transformers with four yokes and one wound Known legs in which the yoke width is slightly smaller than the width of the wrapped thigh. However, these transformers are not used for compressed air cooling in question; because too large a coil area is covered by the four yokes.

Um bei dem Transformator gemäß der Erfindung den Übergang der Kraftlinien zwischen Schenkel und Joch zu verbessern, macht man zweckmäßig die äußeren Schenkelbleche länger, so daß sie die Jochbleche seitlich bedecken. Da die von diesen Blechen auf das Joche übergehenden Kraftlinien im wesentlichen senkrecht zur Blechebene verlaufen, empfiehlt es sich, um die Verluste niedrig zu halten, die Endbleche der Schenkel sowohl wie der Joche dünner und aus höher legiertem Material zu wählen.To in the transformer according to the invention the transition of the lines of force To improve between the leg and yoke, one makes expedient the outer leg plates longer so that they laterally cover the yoke plates. Since those of these sheets on The lines of force crossing the yoke are essentially perpendicular to the plane of the sheet, In order to keep the losses low, it is advisable to use the end plates of the legs Both the yokes are thinner and made from a higher alloyed material.

In der Zeichnung ist als Ausführungsbeispiel der Erfindung ein Einphasenmanteltransformator dargestellt. Der kreisrunde Schenkel a trägt die Wicklung, die aus Zylinderspulen b mit gleichfalls kreisförmigem Ouerschnitt besteht. Die Schichthöhe der Joche c ist geringer als der Durchmesser des Schenkels a (Abb. 2 und 3). Die außenliegenden Bleche d des Schenkels überlappen die Jochbleche teilweise. Aus Abb. 2 erkennt man deutlich, daß das schmale Joch nur einen sehr kleinen Teil der zu kühlenden Fläche bedeckt:In the drawing, a single-phase jacketed transformer is an embodiment of the invention shown. The circular leg a carries the winding, which consists of solenoid coils b also has a circular cross-section. The layer height of the yokes c is smaller than the diameter of the leg a (Fig. 2 and 3). The outlying ones Sheets d of the leg partially overlap the yoke sheets. From Fig. 2 you can see clearly that the narrow yoke is only a very small part of the surface to be cooled covered:

Claims (2)

PATENTANSPRÜCHE: i. Preßluftgekühlter Transformator mit Zylinderspulen, dessen Joche parallel zu einer einzigen Ebene verlaufen, dadurch gekennzeichnet, daß die Abmessung der Joche senkrecht zur Ebene der Bleche geringer als die der bewickelten Schenkel ist. PATENT CLAIMS: i. Compressed air-cooled transformer with cylinder coils, the yokes of which run parallel to a single plane, characterized in that the dimensions of the yokes perpendicular to the plane of the metal sheets are smaller than those of the wound legs. 2. Transformator nach-Anspruch i, dadurch gekennzeichnet, daß die Endbleche der Joche und, Schenkel dünner oder höher legiert oder dünner und höher legiert als die übrigen Bleche sind.2. Transformer according to claim i, characterized in that that the end plates of the yokes and legs are alloyed thinner or higher or thinner and are more highly alloyed than the other sheets.
DEA51065D Compressed air-cooled transformer with cylinder coils Expired DE520293C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA51065D DE520293C (en) Compressed air-cooled transformer with cylinder coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA51065D DE520293C (en) Compressed air-cooled transformer with cylinder coils

Publications (1)

Publication Number Publication Date
DE520293C true DE520293C (en) 1931-03-09

Family

ID=6937739

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA51065D Expired DE520293C (en) Compressed air-cooled transformer with cylinder coils

Country Status (1)

Country Link
DE (1) DE520293C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975253C (en) * 1939-05-06 1961-10-19 Siemens Ag Transformer core

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975253C (en) * 1939-05-06 1961-10-19 Siemens Ag Transformer core

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