AT8683B - Circuit arrangement for transformers for feeding a three-wire system from a two-wire network. - Google Patents
Circuit arrangement for transformers for feeding a three-wire system from a two-wire network.Info
- Publication number
- AT8683B AT8683B AT8683DA AT8683B AT 8683 B AT8683 B AT 8683B AT 8683D A AT8683D A AT 8683DA AT 8683 B AT8683 B AT 8683B
- Authority
- AT
- Austria
- Prior art keywords
- wire
- transformers
- feeding
- circuit arrangement
- wire system
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims 1
- 230000006698 induction Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
<Desc/Clms Page number 1>
Schaltungsanordnung für Transformatoren zur Speisung einer Dreileiteranlage aus einem Zweileiternetz.
Zum Übergang vom Zweileiter- auf Dreileitersystem in Wechselstromanlagen sind Transformatoren erforderlich, bei denen der mittelleiter in der Mitte der Secundärspule abzweigt.
Bei schwankender Belastung ist diese Anordnung nicht mehr anwendbar. Es wird vielmehr ein Transformator verwendet, der zwei Primär- und zwei Secundärspulen enthält. die auf verschiedene Theile eines Kernes gewickelt sind. Aber auch diese Anordnung ist nicht mehr zweckmässig, falls in beiden Zweigen des Dreileiternetzes Ungleichheiten in der Belastung auftreten. In diesem Falle würde durch die ungünstig beeinflussten Inductions- verhältnisse eine Vermehrung der Streuung verursacht werden, die einen unzulässigen Spannungsabfall in dem schwächer belasteten Zweige des Dreileitcrnetzes hervorrufen müsste.
Ein bekanntes Mittel zur Vermeidung dieses Übelstandes ist die Theilung jeder Secnndärspu1e in zwei Spulen und die Schaltung derselben in. der Weise, dass die Secundär- spulen eines Droileiterzweiges gleichzeitig von beiden Primärspulen beeinnusst werden.
Den Gegenstand der vorliegenden Erfindung bildet ein anderes Mittel zur Überwindung der erwähnten Schwierigkeit.
Der zu verwendende Transformatorkern erhält ein magnetisch leitendes Zwischenstück a. Dadurch wird der Transformator in zwei Hälften getheilt; das magnetische Zwischenstück gehört beiden Hälften an. Es entstehen vier Kerntheile b c d und e. auf
EMI1.1
Ist die Belastung in beiden Zweigen des Dreileiternetztes gleich, so entsteht kein Kraftlinienfluss in dem Zwischenstück a, da die Flüsse einander entgegenwirken und sich aufheben; beim Eintreten von Ungleichheiten in der Belastung jedoch bewirkt das
EMI1.2
einflussungen der Induction der Spulen des einen Zweiges durch die anderen können nicht stattfinden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Circuit arrangement for transformers for feeding a three-wire system from a two-wire network.
For the transition from a two-wire to a three-wire system in AC systems, transformers are required in which the central conductor branches off in the middle of the secondary coil.
If the load fluctuates, this arrangement can no longer be used. Rather, a transformer is used which contains two primary and two secondary coils. which are wound on different parts of a core. But even this arrangement is no longer useful if inequalities in the load occur in both branches of the three-wire network. In this case, the unfavorably influenced induction conditions would cause an increase in the scatter, which would have to cause an impermissible voltage drop in the less heavily loaded branches of the three-wire network.
A well-known means of avoiding this inconvenience is to divide each secondary coil into two coils and to connect them in such a way that the secondary coils of a drop wire branch are influenced simultaneously by both primary coils.
The subject of the present invention is another means of overcoming the aforementioned difficulty.
The transformer core to be used receives a magnetically conductive intermediate piece a. This divides the transformer in two; the magnetic adapter belongs to both halves. There are four core parts b c d and e. on
EMI1.1
If the load is the same in both branches of the three-wire network, there is no flow of lines of force in the intermediate piece a, since the flows counteract and cancel each other; however, when inequalities occur in the load, this has the effect
EMI1.2
The induction of the coils of one branch cannot be influenced by the other.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1899108776D DE108776C (en) | 1899-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT8683B true AT8683B (en) | 1902-08-11 |
Family
ID=5651478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT8683D AT8683B (en) | 1899-07-06 | 1900-03-05 | Circuit arrangement for transformers for feeding a three-wire system from a two-wire network. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT8683B (en) |
-
1900
- 1900-03-05 AT AT8683D patent/AT8683B/en active
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