DE946245C - Three-phase transformer or three-phase choke coil with harmonic compensation - Google Patents

Three-phase transformer or three-phase choke coil with harmonic compensation

Info

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
Application number
DES14178D
Other languages
German (de)
Inventor
Dipl-Ing Eberhard Fischer
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES14178D priority Critical patent/DE946245C/en
Application granted granted Critical
Publication of DE946245C publication Critical patent/DE946245C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38Auxiliary core members; Auxiliary coils or windings
    • H01F27/385Auxiliary core members; Auxiliary coils or windings for reducing harmonics

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  • 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)

PATENTANSPRUCH: Drehstromtransformator oder Drehstromdrosselspule mit Oberwellenausgleich, dessen Jochflüsse von den Schenkelflüssen abweichende Phasenlage besitzen und dessen Joche mit Schlitzen versehen sind, dadurch gekennzeichnet, daß eine Dreieckswicklung derart vorgesehen ist, 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.PATENT CLAIM: Three-phase transformer or three-phase inductor with harmonic compensation, the yoke fluxes of which deviate in phase from the leg fluxes own and whose yokes are provided with slots, characterized in that a triangular winding is provided such that one part of the triangular winding, the 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 .der triangular winding on the two yoke paths connecting the outer limbs with the middle limb the other leg ends are arranged.
DES14178D 1937-01-19 1937-01-19 Three-phase transformer or three-phase choke coil with harmonic compensation Expired DE946245C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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