DE946245C - Three-phase transformer or three-phase choke coil with harmonic compensation - Google Patents
Three-phase transformer or three-phase choke coil with harmonic compensationInfo
- Publication number
- DE946245C DE946245C DES14178D DES0014178D DE946245C DE 946245 C DE946245 C DE 946245C DE S14178 D DES14178 D DE S14178D DE S0014178 D DES0014178 D DE S0014178D DE 946245 C DE946245 C DE 946245C
- Authority
- DE
- Germany
- Prior art keywords
- phase
- yoke
- harmonic compensation
- choke coil
- triangular winding
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
- H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Description
Es wurde bereits ein Drehstromtransformator oder eine Drehstromdrosselspule mit Oberwellenausgleich, bei dem die Jochpfade des Eisenkernes durch Schlitzen der Joche aufgeteilt sind, vorgeschlagen. Die Induktion der Jochflüsse ist nach Größe und Phasenlage so bemessen, daß .die von den Jochflüssen hervorgerufenen Oberwellen im Strom, vorzugsweise die fünften, die durch die Sättigung der Hauptschenkelflüsse entstehenden Oberwellen ausgleichen. Um nun eine sichere Trennung der einzelnen Flußkomponenten in den aufgespalteten Jochteilen zu erzielen, wird. gemäß der Erfindung eine Dreieckswicklung derart vorgesehen, daß der eine Teil der Dreieckswicklung den die beiden äußeren Schenkel des Eisenkernes verbindenden Jochpfad auf der einen Seite der Schenkelenden umschließt, während die beiden anderen Teile der Dreieckswicklung auf den beiden, .die Außenschenkel mit dem Mittelschenkel verbindenden Jochpfaden der anderen Schenkelenden angeordnet sind.There was already a three-phase transformer or a three-phase choke coil with harmonic compensation, in which the yoke paths of the iron core are slotted through the Yokes are split, suggested. The induction of the yoke flows is by size and phase position so dimensioned that .the harmonics caused by the yoke fluxes in the stream, preferably the fifth, caused by the saturation of the main thigh rivers compensate for harmonics. To now ensure a safe separation of each To achieve flux components in the split yoke parts will. according to the invention a triangular winding is provided in such a way that one part of the triangular winding the yoke path connecting the two outer legs of the iron core on one side Side of the leg ends, while the other two parts of the triangular winding on the two yoke paths connecting the outer legs to the middle leg the other leg ends are arranged.
In der Figur ist ein Ausführungsbeispiel der erfindungsgemäßen Anordnung dargestellt.In the figure is an embodiment of the arrangement according to the invention shown.
Der Eisenkern des Drehstromtransformators hat die drei Schenkel i, 2, 3 und die beiden Joche 4 und 5. Diese sind durch Schlitze 6 und 7 aufgespalten, so daß ein Jochpfad 8 die beiden äußeren Schenkel i und 3. miteinander verbindet, während zwei andere Jochpfade 9 und io die beiden äußeren Schenkel i' und 3 mit dem mittleren Schenkel :2 verbinden. Die Dreieckswicklung i i ist nun so auf .dem an beiden Schenkelenden angeordneten geschlitzten Joch untergebracht, daß der eine Wicklungsteil 12 auf dem Jochpfad 8 liegt, während der Wicklungsteil 13 auf dem Jochpfad 14 untergebracht ist, der am anderen Schenkelende die Schenkel i und 2 miteinander verbindet. Der dritte Teil 15 der Dreieckswicklung sitzt auf dem zweiten, den mittleren Schenkel 2 mit dem Außenschenkel 3 verbindenden Jochpfad 16.The iron core of the three-phase transformer has three legs i, 2, 3 and the two yokes 4 and 5. These are split by slots 6 and 7, so that a yoke path 8 connects the two outer legs i and 3. while two other yoke paths 9 and io the two outer legs i 'and 3 with the middle leg: connect 2. The triangular winding i i is now so on .dem housed slotted yoke arranged at both leg ends that one Winding part 12 is on the yoke path 8, while the winding part 13 on the Yoke path 14 is accommodated, the legs i and 2 at the other leg end connects with each other. The third part 15 of the triangular winding sits on the second, The yoke path 16 connecting the middle limb 2 to the outer limb 3.
Die Dreieckswicklung muß so ausgelegt sein, daß sich in den genannten drei Jochpfaden 8, 14 und 16 gleich große Flüsse ergeben, deren Vektoren ein gleichseitiges Dreieck bilden müssen. Aus Symmetriegründen müssen dann auch die Flußvektoren in den unbewickelten Jochteilen 9, io und 17 gleich groß sein, und ihre Vektorendreieck muß sich schließen. Daher sind die Flüsse in den Jochteilen 9 und 14 phasengleich und von gleicher Größe. Ebenso sind die Flüsse io, und 16 untereinander gleich. Die Flüsse in den Jochteilen 8, und 17 müssen dann auch gleich groß und phasengleich sein. Die in den Jochen vorhandenen Flußsysteme haben gegen das in den Schenkeln i, 2 und 3 vorhandene Flußsystem eine Phasenverschiebung von 30°, weil sie magnetisch in Dreieck geschaltet sind.The triangular winding must be designed in such a way that the three yoke paths 8, 14 and 16 mentioned above result in fluxes of equal size, the vectors of which must form an equilateral triangle. For reasons of symmetry, the flux vectors in the unwound yoke parts 9, 10 and 17 must then also be of the same size, and their vector triangle must close. Therefore, the flows in the yoke parts 9 and 14 are in phase and of the same size. Likewise, the rivers io, and 16 are equal to one another. The flows in the yoke parts 8 and 17 must then also be of the same size and in phase. The flux systems present in the yokes have a phase shift of 30 ° compared to the flux system present in legs 1, 2 and 3, because they are magnetically connected in a triangle.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES14178D DE946245C (en) | 1937-01-19 | 1937-01-19 | Three-phase transformer or three-phase choke coil with harmonic compensation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES14178D DE946245C (en) | 1937-01-19 | 1937-01-19 | Three-phase transformer or three-phase choke coil with harmonic compensation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE946245C true DE946245C (en) | 1956-07-26 |
Family
ID=7474499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES14178D Expired DE946245C (en) | 1937-01-19 | 1937-01-19 | Three-phase transformer or three-phase choke coil with harmonic compensation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE946245C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2800521A1 (en) * | 1977-01-11 | 1978-07-13 | Moser Glaser & Co Ag | INDUCTIVE VOLTAGE CONVERTER WITH FERROR RESONANCE PROTECTION |
-
1937
- 1937-01-19 DE DES14178D patent/DE946245C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2800521A1 (en) * | 1977-01-11 | 1978-07-13 | Moser Glaser & Co Ag | INDUCTIVE VOLTAGE CONVERTER WITH FERROR RESONANCE PROTECTION |
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