DE98302C - - Google Patents
Info
- Publication number
- DE98302C DE98302C DENDAT98302D DE98302DA DE98302C DE 98302 C DE98302 C DE 98302C DE NDAT98302 D DENDAT98302 D DE NDAT98302D DE 98302D A DE98302D A DE 98302DA DE 98302 C DE98302 C DE 98302C
- Authority
- DE
- Germany
- Prior art keywords
- coils
- wire
- primary
- network
- core
- 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.)
- Active
Links
- 230000001939 inductive effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims 3
- 239000004020 conductor Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
- H01F30/14—Two-phase, three-phase or polyphase transformers for changing the number of phases
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
,Die nachfolgend beschriebene Erfindung bezieht sich auf Kerntransformatoren für Wechselstrom bei Dreileitersystemen. Kerntransformatoren bestehen im Allgemeinen aus einem rechteckigen Eisenkern, auf welchem zwei Primärspulen, und zwar je eine auf einem Schenkel in Serie und darüber die Secundärspulen gewickelt sind. Auch bei schwankender Belastung eines Dreileiters erweisen sich derartige Transformatoren als brauchbar, so lange die beiden Seiten gleich belastet sind. Wird jedoch die Belastung beider Seiten sehr verschieden, dann treten starke Spannungsschwankungen auf. So lange nämlich die Belastung gleichmäfsig vertheilt ist, steht die gegenelektromotorische Kraft jedes Secundä'rstromkreises in richtigem Verhältnifs zur elektromotorischen Kraft des zugehörigen Primärstromkreises und der Strom in jeder Secundärspule entspricht der Induction der zugehörigen Primärspule, die Streuung ist ein Minimum. Wenn jedoch eine Seite des Dreileiternetzes überstark belastet ist und die andere wenig, so wird die Secundärspule der ersteren nicht nur von der unmittelbar benachbarten Primärspule Strom entnehmen, sondern von beiden Primärspulen, und es wird das richtige Verhältnifs zwischen der gegenelektromotorischen Kraft der schwach belasteten Secundärspule und ihrer zugehörigen Primärspule gestört, so, dafs die Streuung gröfser wird. Dies veranlafst eine Verminderung der Spannung der stark belasteten Seite und erhöht die Spannung auf der Seite der schwächeren Belastung.The invention described below relates to core transformers for alternating current in three-wire systems. Core transformers generally consist of a rectangular shape Iron core on which two primary coils, one each on one leg in series and over it the secondary coils are wound are. Even with fluctuating loads on a three-wire conductor, such transformers prove to be useful as long as the both sides are equally loaded. However, if the burden on both sides is very different, then strong voltage fluctuations occur. As long as the load is even is distributed, the counter-electromotive force of each secondary circuit is in correct ratio to the electromotive force of the associated primary circuit and the current in each secondary coil corresponds to the induction of the associated primary coil, the Dispersion is a minimum. However, if one side of the three-wire network is excessively loaded and the other little, so the secondary of the former is not only immediate from that Take current from neighboring primary coil, but from both primary coils, and it will the correct ratio between the counter-electromotive force of the lightly loaded The secondary coil and its associated primary coil are disturbed, so that the scatter is greater will. This causes the stress on the heavily loaded side to decrease and increase the tension on the side of the weaker load.
Um diesen Uebelstand zu beseitigen, wird jede Secundärspule noch einmal unterlheilt, und die Spulen, welche mit den beiden Zweigen des Dreileiters verbunden sind, werden so combinirt, dafs die Secundärwindungen auf einer Seite des Systems gleichzeitig von beiden Primärwickelungen inducirt werden. Der totale magnetische Flufs wird daher gleichmäfsig auf alle secundären Windungen inducirend wirken.In order to remedy this inconvenience, each secondary coil is subdivided once more, and the coils connected to the two branches of the three-wire become so combined so that the secondary turns on one side of the system are simultaneously of both Primary windings are induced. The total magnetic flux is therefore evenly increased all secondary turns have an inductive effect.
Fig. ι zeigt die neue Anordnung der Spulen, in welcher die primären Wickelungen im Zweileiter, die secundären im Dreileiter verbunden sind. Fig. 2 zeigt die Primärwickelungen im Dreileiter, die secundären im Zweileiter. Entsprechend können Primär- und Secundärwickelungen im Dreileiter angeordnet werden (Fig. 4).Fig. Ι shows the new arrangement of the coils, in which the primary windings in the two-wire, the secondary are connected in three conductors. Fig. 2 shows the primary windings in Three-wire, the secondary in two-wire. Primary and secondary windings can be used accordingly be arranged in a three-wire (Fig. 4).
In Fig. ι sind die Primärspulen FF1 in Serie geschaltet im Nebenschlufs zu den Hauptleitungen B C. Der Secundärstromkreis ist in vier Spulen G G1 G2 G3 untertheilt; diese Spulen sind paarweise verbunden, und die Spulen jedes Paares sind auf verschiedenen Schenkeln des Eisenkernes E befestigt. Spulen G G3 sind in Serie verbunden zwischen der Hauptleitung H und dem Nullleiter, Spulen G1 G2 zwischen der Hauptleitung J und dem Nullleiter. Da das Spulenpaar G G3 auf verschiedenen Schenkeln des Transformatorenkernes angeordnet ist und bezüglich des inductiven Einflusses in gleicher Entfernung von den beiden Primärspulen, so werden G Gs von beiden Primärspulen in gleicher Weise inducirt; dasselbe gilt von dem Spulenpaare G1 G2. Es wird also eine un-In Fig. Ι the primary coils FF 1 are connected in series in the bypass to the main lines B C. The secondary circuit is divided into four coils GG 1 G 2 G 3 ; these coils are connected in pairs, and the coils of each pair are fixed on different legs of the iron core E. Coils GG 3 are connected in series between the main line H and the neutral conductor, coils G 1 G 2 between the main line J and the neutral conductor. Since the coil pair GG 3 is arranged on different legs of the transformer core and with regard to the inductive influence at the same distance from the two primary coils, GG s are induced in the same way by both primary coils; the same applies to the coil pairs G 1 G 2 . So it will be an un-
gleichmäfsige Belastung der beiden Seiten des Dreileitersystems zu Schwankungen keine Veranlassung geben. Die Primärspulen F und die Secundärspulen G G2 werden auf dem Kern meist über einander angeordnet (Fig. 3).Uniform load on both sides of the three-wire system does not give rise to fluctuations. The primary coils F and the secondary coils GG 2 are usually arranged one above the other on the core (FIG. 3).
Claims (1)
Kerntransformator nach Anspruch 1, dadurch gekennzeichnet, dafs seine beiden Seiten auf je ein Dreileiternetz arbeiten.ι. Core transformer for the transition from two-wire to three-wire networks and vice versa, characterized in that each (primary and secondary) winding consists of two coils connected one behind the other, which are distributed over different legs of the core in such a way that both coils are each on one Side of the three-wire network working winding at the same time to both coils of the winding working on the two-wire network are in the same induction relationship, for the purpose of compensating for load fluctuations in the two network halves of the three-wire network.
Core transformer according to Claim 1, characterized in that its two sides each work on a three-wire network.
Publications (1)
Publication Number | Publication Date |
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DE98302C true DE98302C (en) |
Family
ID=369277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT98302D Active DE98302C (en) |
Country Status (1)
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DE (1) | DE98302C (en) |
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