DE380056C - Transformer to increase the number of phases - Google Patents

Transformer to increase the number of phases

Info

Publication number
DE380056C
DE380056C DEA34406D DEA0034406D DE380056C DE 380056 C DE380056 C DE 380056C DE A34406 D DEA34406 D DE A34406D DE A0034406 D DEA0034406 D DE A0034406D DE 380056 C DE380056 C DE 380056C
Authority
DE
Germany
Prior art keywords
phases
transformer
increase
anodes
taps
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
DEA34406D
Other languages
German (de)
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
Publication date
Priority to DEA34406D priority Critical patent/DE380056C/en
Application granted granted Critical
Publication of DE380056C publication Critical patent/DE380056C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00Fixed transformers not covered by group H01F19/00
    • H01F30/06Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12Two-phase, three-phase or polyphase transformers
    • H01F30/14Two-phase, three-phase or polyphase transformers for changing the number of phases

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ac-Ac Conversion (AREA)

Description

Transformator zur Erhöhung der Phasenzahl. Für die Speisung von. Gleichrichtern mit sechs Anoden ist ein Sechsphasenstransforniator bekannt geworden, welcher durch Kombination einer Stern- und Sechseckschaltung eine bessere Stromverteilung unter den verschiedenen Phasen der Primärseite bewirkt.Transformer to increase the number of phases. For feeding. Rectifiers With six anodes, a six-phase transformer has become known, which by Combination of a star and hexagonal connection provides better power distribution the different phases of the primary side.

Mit der gleichen in Abb. i dargestellten Wicklungskombination auf dem Transforinator, wo oi, l'o, 23' und 32' vier gleiche Teile der Sekundärwicklung sind, welche der gleichen Phase des speisenden Dreiphasennetzes entsprechen, läßt sich gemäß der Erfindung durch an sich bekannte Anzapfungen an den Wicklungsteilen des Transformators die Speisung einer größeren "Zahl von Anoden mit einer gleichen Zahl von gleich weit auseinanderliegenden Phasen ermöglichen.With the same winding combination shown in Fig. I the transformer, where oi, l'o, 23 'and 32' are four equal parts of the secondary winding which correspond to the same phase of the feeding three-phase network according to the invention by known taps on the winding parts of the transformer the feeding of a larger "number of anodes with the same Allow number of equally spaced phases.

Abb.2 stellt die Anwendung auf den Fall der Speisung von 12 Anoden durch 12 Phasen lag. Die Anoden sind dabei nicht an die Ecken des Sechsecks, sondern an Punkte a, b. c, d der die Seiten des Sechsecks bildenden Sekundärwicklungen 13', 3'2 usw. angeschlossen, sc daß im Spannungs<iiagrainm, dargestellt durch die gleiche Abbildung, wo 01, 03', 02, oi' usf. den Spannungen der Ecken des Sechsecks im Verhältnis zum Nullpunkt entsprechen, die Punkte u, b, c, d usw. zusammen ein reguläres Polygon von 12 Seiten darstellen.Fig.2 shows the application in the case of 12 anodes being fed by 12 phases. The anodes are not at the corners of the hexagon, but at points a, b. c, d of the secondary windings 13 ', 3'2, etc. forming the sides of the hexagon are connected, sc that in the voltage <iiagrainm, represented by the same figure, where 01, 03', 02, oi 'etc. are the voltages of the corners of the Hexagons in relation to the origin, the points u, b, c, d etc. together represent a regular polygon of 12 sides.

Durch Hinzufügen von sechs zusätzlichen Anzapfungen in p, q, r auf den sterngeschalteten Wicklungen oi, o3' o2 usf. und durch Näherrücken der Anzapfungen a, b, c, d usw. auf den Sechseckseiten kann man auch 18 Phasen herstellen.By adding six additional taps in p, q, r on the star-connected windings oi, o3 'o2 etc. and by moving the taps a, b, c, d etc. closer to the hexagon sides, you can also create 18 phases.

Die Vermehrung der Phasenzahl ergibt eine Erhöhung der Gleichstromspannung bei gleichbleibender Maximalspannung zwischen Anoden, die Verniinderu -g der Schwankungen im deichgerichteten Strom und der höheren Harmonischen auf der Wechselstroniseite sowie eine Verminderung des Spannungsabfalls, also eine bessere Ausnutzung des Transformators.The increase in the number of phases results in an increase in the DC voltage with a constant maximum voltage between anodes, the reduction in the fluctuations in the dike-directed current and the higher harmonics on the alternating current side as well as a reduction in the voltage drop, i.e. better utilization of the transformer.

Die Anwendung von Gleichrichtern mit i.-#. oder 18 Phasen ist nicht erforderlich, wenn man durch den gleichen Transformator gleichzeitig zwei oder drei Gleichrichter zu sechs Anorien speist, welche im Falle von 12 Phasen je an die Anzapfungen a, c usw. einerseits uiid b, d usw. anderseits angeschlossen sind oder iiii Falle von 18 Phasen der erste Gleich- richter an p, q, ;--, der zweite an a, c usw. und der dritte an h, d usw. The use of rectifiers with i .- #. or 18 phases is not necessary if you have two or three rectifiers to six at the same time through the same transformer Feeds anories, which in the case of 12 phases depending on the taps a, c etc. on the one hand uiid b, d etc. are connected on the other hand or iiii in the case of 18 phases, the first equal judge to p, q,; -, the second to a, c etc. and the third to h, d etc.

Claims (2)

PATENTANSPRÜCHE: i. Transformator zur Erhöhung der Phaseilzahl, dessen Sekundärwicklungsteile in einer kombinierten Stern- und Polygonschaltung verbunden sind, dadurch gekennzeichnet, daß diese Wicklungsteile an gleichmäßig verteilten Stellen so angezapft sind, daß eine größere Anzahl von Gleichrichteranoden gespeist werden kann, als sekundäre Phasenwicklungen vorhanden sind. PATENT CLAIMS: i. Transformer for increasing the number of phases, the secondary winding parts of which are connected in a combined star and polygon circuit, characterized in that these winding parts are tapped at evenly distributed points so that a greater number of rectifier anodes can be fed than there are secondary phase windings. 2. Transformator nach Anspruch i, dadurch gekennzeichnet, daß die Anzapfungen auf der in-phasigen sekundären Polygo11wicklung so verteilt sind, daß sie die Ecken eines n # m-Ecks bilden, wo n eine beliebige ganze Zahl ist.2. Transformer according to claim i, characterized in that the taps on the in-phase secondary polygon winding are distributed in such a way that they form the corners of an n # m corner form where n is any integer.
DEA34406D Transformer to increase the number of phases Expired DE380056C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA34406D DE380056C (en) Transformer to increase the number of phases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA34406D DE380056C (en) Transformer to increase the number of phases

Publications (1)

Publication Number Publication Date
DE380056C true DE380056C (en) 1923-09-01

Family

ID=6928534

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA34406D Expired DE380056C (en) Transformer to increase the number of phases

Country Status (1)

Country Link
DE (1) DE380056C (en)

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