DE263421C - - Google Patents
Info
- Publication number
- DE263421C DE263421C DE1911263421D DE263421DA DE263421C DE 263421 C DE263421 C DE 263421C DE 1911263421 D DE1911263421 D DE 1911263421D DE 263421D A DE263421D A DE 263421DA DE 263421 C DE263421 C DE 263421C
- Authority
- DE
- Germany
- Prior art keywords
- winding
- switching stages
- windings
- switched
- symmetrical
- 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
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/06—Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
-JIt 263421 -KLASSE 2\d. GRUPPE -JIt 263421 - CLASS 2 \ d. GROUP
angeordnet sind.are arranged.
Zur Regelung der Spannung von Transformatoren werden von einem mehr oder weniger großen Teil der einen Wicklung Abzweigungen nach einem Stufenschalter geführt, mit dem nach Bedarf Wicklungsstufen zu- oder abgeschaltet werden können. Der leichteren Unterteilung wegen werden die Schaltstufen meist auf der Hochspannungsseite des Transforma-.iors vorgesehen. In Fig. ι ist die üblicheTo regulate the voltage of transformers are used by one more or less large part of a winding branches led to a tap changer, with the winding stages can be switched on or off as required. The easier subdivision Because of this, the switching stages are mostly on the high-voltage side of the transformer intended. In Fig. Ι is the usual
ίο Ausführung solcher Regeltransformatoren schematisch dargestellt. Es bedeuten I und II die Wicklungen, von denen die erstgenannte an einem Ende eine Anzahl Schaltstufen s hat.ίο Schematic design of such regulating transformers shown. I and II mean the windings, of which the former has a number of switching stages s at one end Has.
Wenn sämtliche Windungen eingeschaltet sind, so liegen die Wicklungen I und II symmetrisch
zu ihrer Mittelebene m. Sobald, aber
zum Zweck des Regeins einige Windungen abgeschaltet werden, so tritt eine Änderung
ein, indem die stromführenden Teile der Wicklung I nicht mehr symmetrisch zur Mittelebene
m liegen. Diese Unsymmetrie hat zunächst .den Nachteil, daß die Streuung erheblich
erhöht wird, und ferner, daß starke magnetische Kräfte auftreten, welche die Wicklungen
gegeneinander zu verschieben suchen und etwa bei Kurzschlüssen zu Deformationen und Zerstörung der Spulen führen können.
In Fig. la ist ein achsial gerichteter Schnitt durch eine sogenannte Röhrenwicklung dargestellt.
Von der Wicklung I sind entsprechend Fig. ι einige Windungen abgeschaltet, was
durch Schraffur der Schnittfläche angedeutet ist. Denkt man sich die Wicklung II feststehend,
so treten Verschiebungskräfte auf, welche die Spule I in der Richtung der eingezeichneten
Pfeile nach unten zu bewegen und also die eintretende Unsymmetrie noch
zu vergrößern suchen.When all windings are switched on, windings I and II are symmetrical to their center plane m. As soon as, but for the purpose of regulating, some windings are switched off, a change occurs in that the current-carrying parts of winding I are no longer symmetrical to the center plane m lie. This asymmetry initially has the disadvantage that the scatter is considerably increased, and furthermore that strong magnetic forces occur which tend to move the windings against one another and can lead to deformations and destruction of the coils in the event of short circuits, for example.
In Fig. La an axially directed section is shown through a so-called tube winding. According to FIG. 1, some turns of the winding I are switched off, which is indicated by hatching the cut surface. If one thinks of the winding II as being stationary, then displacement forces occur which move the coil I downwards in the direction of the arrows drawn and thus seek to increase the asymmetry that occurs.
Nach der Erfindung wird die daraus entstehende Gefährdung der Wicklungen dadurch vermieden, daß diejenige Wicklung, welche die Schaltstufen erhält, oder ein Teil von ihr, in zwei gleiche Hälften mit entgegengesetztem Wicklungsinn zerlegt wird, die symmetrisch zu der Mittelebene m liegen. Die beiden Hälften sind parallel geschaltet, und an ihren äußeren Enden sind ebenfalls, zu m symmetrisch gelagerte, parallel geschaltete Schaltstufen angeordnet. Wenn nun Windungen abgeschaltet werden, so werden nunmehr immer zwei symmetrisch zur Mittelebene gelegene Stufen geschaltet, die zu je einer Wickiungshälfte gehören. Da bei dieser Anordnung stromdnrchflossene Wicklungsteile immer symmetrisch zur Mittelebene der Wicklung liegen, so können keine Verschiebungskräfte zwischen den Wicklungen I und II mehr auftreten.According to the invention, the resulting risk to the windings is avoided in that the winding which receives the switching stages, or a part of it, is divided into two equal halves with opposite winding directions, which are symmetrical to the center plane m . The two halves are connected in parallel, and at their outer ends there are also switching stages connected in parallel, symmetrically mounted to m. If turns are now switched off, then two stages located symmetrically to the center plane are now switched, each belonging to one half of the winding. Since with this arrangement current-carrying winding parts are always symmetrical to the center plane of the winding, no displacement forces can occur between the windings I and II.
In den Fig. 2 bis 5 sind einige Ausführungsformen der Erfindung dargestellt. Bei der Anordnung nach Fig. 2 sind die Schaltstufen s an den beiden äußeren Enden der Spule I vorgesehen, ' bei der nach Fig. 3 dagegen in der Mitte der Spule. Die Fig. 2aSome embodiments of the invention are shown in FIGS. In the arrangement according to FIG. 2, the switching stages are s at the two outer ends the coil I is provided, 'in the case of FIG. 3, however, in the middle of the coil. Fig. 2a
und 3a zeigen entsprechend der Fig. ia achsiale Schnitte durch die Transformatorwicklungen, bei welchen die Stellen der Wicklung I, welche gemäß dem Schema Fig.. 2 und 3 abgeschaltet sind, nicht schraffiert sind. Es entstehen auch hier in der Wicklung I achsiale Kräfte, wie dies durch Pfeile angedeutet ist. Da diese Kräfte aber einander gleich sind und entgegengesetzte Richtung haben, so sind sie zueinander im Gleichgewicht und üben keine Wirkung auf die Spule II aus.and 3a show according to FIG Sections through the transformer windings showing the points of the winding I, which are switched off according to the scheme Fig. 2 and 3, are not hatched. Axial forces also arise here in the winding I, as indicated by arrows is. But since these forces are equal to each other and have opposite directions, they are in equilibrium with one another and have no effect on coil II.
In den Anordnungen nach Fig. 4 und 5 ist nur ein Teil der Wicklung I in zwei parallel geschaltete Hälften zerlegt. In Fig. 4 sind die Schaltstufen s in zur Mittelebene m symmetrischer Anordnung über die nicht unterteilten Windungen gelegt. Bei der Anordnung nach F,ig. 5 ist der Hauptteil der Wicklung I einheitlich ausgeführt, während die Schaltstufengruppen sich wie bei Fig. 2 an den äußeren Enden der Spulen befinden. In beiden Fällen tritt, wie leicht zu übersehen, eine zur Mittelebene m symmetrische Kraftverteilung ein.In the arrangements according to FIGS. 4 and 5, only part of the winding I is divided into two halves connected in parallel. In FIG. 4, the switching stages s are placed in an arrangement symmetrical to the center plane m over the turns that are not divided. With the arrangement according to F, ig. 5, the main part of the winding I is designed uniformly, while the switching stage groups are, as in FIG. 2, at the outer ends of the coils. In both cases, as can easily be overlooked, there is a force distribution symmetrical to the center plane m.
Die beschriebene Einrichtung kann sinngemäß natürlich auch für Mehrphasentransformatoren angewendet werden.The device described can of course also be used for polyphase transformers be applied.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE263421T | 1911-07-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE263421C true DE263421C (en) | 1913-09-05 |
Family
ID=32522519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1911263421D Expired DE263421C (en) | 1911-07-04 | 1911-07-04 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE263421C (en) |
FR (1) | FR445734A (en) |
GB (1) | GB191215647A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1137132B (en) * | 1957-03-13 | 1962-09-27 | Marie Stier Geb Pietrzik | Adjustable transformer with two pantographs moving in opposite directions and together for each wound core leg |
EP1519391A2 (en) | 2003-09-25 | 2005-03-30 | Siemens Aktiengesellschaft | Resin encapsulated transformer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770767A (en) * | 1954-12-14 | 1956-11-13 | Gen Electric | Winding arrangement using a tertiary winding |
-
1911
- 1911-07-04 DE DE1911263421D patent/DE263421C/de not_active Expired
-
1912
- 1912-07-03 FR FR445734D patent/FR445734A/en not_active Expired
- 1912-07-04 GB GB191215647D patent/GB191215647A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1137132B (en) * | 1957-03-13 | 1962-09-27 | Marie Stier Geb Pietrzik | Adjustable transformer with two pantographs moving in opposite directions and together for each wound core leg |
EP1519391A2 (en) | 2003-09-25 | 2005-03-30 | Siemens Aktiengesellschaft | Resin encapsulated transformer |
EP1519391A3 (en) * | 2003-09-25 | 2006-03-01 | Siemens Aktiengesellschaft | Resin encapsulated transformer |
Also Published As
Publication number | Publication date |
---|---|
GB191215647A (en) | 1913-02-27 |
FR445734A (en) | 1912-11-18 |
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