DE730286C - Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit - Google Patents

Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit

Info

Publication number
DE730286C
DE730286C DEK130867D DEK0130867D DE730286C DE 730286 C DE730286 C DE 730286C DE K130867 D DEK130867 D DE K130867D DE K0130867 D DEK0130867 D DE K0130867D DE 730286 C DE730286 C DE 730286C
Authority
DE
Germany
Prior art keywords
phase
transformer
thrust
transformers
circuit
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
DEK130867D
Other languages
German (de)
Inventor
Karl Bahrmann
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.)
Koch and Sterzel AG
Original Assignee
Koch and Sterzel 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 Koch and Sterzel AG filed Critical Koch and Sterzel AG
Priority to DEK130867D priority Critical patent/DE730286C/en
Application granted granted Critical
Publication of DE730286C publication Critical patent/DE730286C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/06Variable transformers or inductances not covered by group H01F21/00 with current collector gliding or rolling on or along winding

Landscapes

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

Description

Aus zwei in Scottschaltung betriebenen Einphasen-Schubtransformatorenbestehender Drehstrom-Regeltransformatorsatz Wenn man einen Dmehstrom-Re,-eltra3isfcrrmatorsatz aus zwei. in Scottschaltung betriebenen normalen Einphasen-Schubtransformatoren aufbaut, so ergibt sich der Nachbeil, daß eine Regelung dar Phasenspannungen. gleichmäßig zum Direhstroimsystemnullpunkt nicht möglich ist.Consisting of two single-phase thrust transformers operated in a Scott circuit Three-phase regulating transformer set If you have a multiple-current transformer set from two. normal single-phase thrust transformers operated in a Scott circuit builds up, there is the disadvantage that a regulation of the phase voltages. evenly is not possible to the direct flow system zero point.

Erfindungsgemäß wird dieser Nh.chteil dadurch vermieden, daß der in der Scottschaltung den Höhentransformator bildende Einphasen-Schubtransformator zwei zusätzliche Regelwicklungen aufweist, von denen jede .mit einer der beiden Regelwicklungen des anderen Einphasen-Schubtransformators (Basistransform:ators) in Reihe geschaltet ist. Die als Schubtransfo@rm,atoiren ausgebildeten Einphasen-Schubtransformatoren können in Sparschaltung geschaltet sein.According to the invention, this Nh.chteil is avoided in that the in the Scott circuit forming the height transformer single-phase thrust transformer has two additional control windings, each of which .with one of the two Regulating windings of the other single-phase thrust transformer (base transformer: ators) is connected in series. The single-phase thrust transformers designed as shear transformers can be switched in economy circuit.

In der Abb. i ist ein Ausfülirtuigsbeispiel für einen aus zwei Einphasen-Schubtransformatoren bestehenden Drehstrom-Regeltransformatorsatz gemäß der Erfindung schaltungsmäßig dargestellt. Es ist die Erregerwicklung des einen Einphasen-Schubtransformators, der den Basistransformator einer Scottschaltung bildet, mit 20-10-3o und die Erregerwicklung des anderen in der Scottschaltung den Höhentransformator bildenden Einphasen-Schubtransformators mit i 0-6o bezeichnet. Die Erregerwicklungen sind in doppelter AusführuTg vorhanden, weil die beiden Schubtransformatoren für @-- und --Regelung bestimmt sind. Der als B,asistransformatar,dienende Schubtransformator weist- zwei Regelwicklungen 4o-8o und 5o-go auf. Der in der Scottschaltung den Höhentransformator bildende Schubtransformator besitzt außer der Regehvicklung 60-70 zw :ei zusätzliche R,egelwicklun-en 30-8o und 7o-go. Die Regelwicklung 20-9o ist in Reihe mit der Regelz@zcklung 5o-go und die Regelwicklung 30-8o in Reihe mit der zweiten Regelwicklung q.0-80 des den Basistransförmnator bildenden Schubtransforxnators geschaltet. An die Klemmen U, V und W können die drei Phasen des ungeregelten Drehstromnetzes. also die Erregerspannung, angeschlossen werden, so daß an den Klemmen u, v und iv die geregelte Spannung abgenommen werden kam.Fig. I shows an example for one of two single-phase thrust transformers existing three-phase regulating transformer set according to the invention in terms of circuitry shown. It is the excitation winding of a single-phase thrust transformer, which forms the base transformer of a Scott circuit, with 20-10-3o and the excitation winding the other single-phase thrust transformer forming the height transformer in the Scott circuit denoted by i 0-6o. The excitation windings are available in duplicate, because the two thrust transformers are intended for control and control. The as B, asistransformatar, serving thrust transformer has two control windings 4o-8o and 5o-go on. The thrust transformer forming the height transformer in the Scott circuit In addition to the 60-70 standard winding, it has two additional rows and 30-8o reels and 7o-go. The control winding 20-9o is in series with the control voltage 5o-go and the control winding 30-8o in series with the second control winding q.0-80 of the base transformer forming shear transformer switched. The terminals U, V and W can be connected to the three phases of the unregulated three-phase network. so the excitation voltage, connected so that the regulated voltage can be picked up at terminals u, v and iv came.

Stellt man, wie dies die Abb.2 erkennen läßt, 'lClie den Wicklungen entsprechenden Spannungen vektori:ell dar, so erhält man das mit durchgehenden Linien gezeichnete Dreieck als Spannungsdreieck flirr die ungeregelte Seite und das gestrichelt gezeichnete Dreieck für die geregelte Seite, sofern die Regelwicklungen so eingestellt werden, daß sich ihre Spannungen zu der Erregerspannung addieren. Der Drehstromsystemnullpunkt ist mit o bezeichnet. Werden die Regelwicklungsteile gegen die Wicklungsteile 3o-io, 6o-io und 2o-io geschaltet, so exgibt sich das in Abb.3 gezeichnete Diagramm, in dem wieder das .ausgezogene Dreieck das Spannungsdreieck für die ungeregelte Seite, das gestrichelte Dreieck .des Spannungsdreiecks für die geregelte Seite darstellt. Durch die regelbaren Zusatzspannungen 6o-70 einerseits, 3o-80, 80-4o und 20-9o, 90-5o andererseits ist es möglich, die geregelte Spannung in der. in den Abb. 2 und 3 gezeigten Weise zu vergrößern oder zu verkleinern und, wie Abb. 4. zeigt, sogar bis auf Null in den Nullpunkt selbst zu bringen. Die Abb. 2 und 3 lassen ohne Schwierigkeiten erkennen, daß die Regelung dazu so. getroffen sein ruß, daß die Hypotenuse der Dreiecke 2o, 5o, 9o und 3o, 8o, q.o immer auf den Vektoren 0-5o bzw. o-40 liegt.If one shows, as can be seen in Fig. 2, the voltages corresponding to the windings vectori: ell, one obtains the triangle drawn with continuous lines as the voltage triangle for the unregulated side and the dashed triangle for the regulated side, provided that the Regulating windings are set so that their voltages add to the excitation voltage. The three-phase system zero point is marked with o. If the control winding parts are switched against the winding parts 3o-io, 6o-io and 2o-io, the diagram shown in Fig. 3 appears, in which the solid triangle represents the voltage triangle for the unregulated side, the dashed triangle of the voltage triangle represents for the regulated side. With the adjustable additional voltages 6o-70 on the one hand, 3o-80, 80-4o and 20-9o, 90-5o on the other hand, it is possible to adjust the regulated voltage in the. in the manner shown in Fig. 2 and 3 to enlarge or reduce and, as Fig. 4 shows, even bring it down to zero in the zero point itself. Figs. 2 and 3 show without difficulty that the scheme to do so. ruß be made that the hypotenuse of the triangles 2o, 5o, and 9o 3o, 8o, qo always or o-40 is located on the vectors 0-5o.

Claims (2)

PATENTANSPRÜCHE: i. Aus zwei in Scottschaltung betriebenen Einphasen-Schubtransformatoren bestehender Drehstrom-Regeltransformatorsatz, dadurch ,gekennzeichnet, daß der in der Scottschaltung den Höhentransformator bildende Einphasen-Schubtransformator zwei zusätzliche Reg, ehcicklungen (20-9o und 30-80) aufweist, von denen jede mit einer der beiden Regelwicklungen 50-9o bmc. 40-8o) des anderen Einphasen-Schubtransformators (Basistransformators) in Reihe geschaltet ist. PATENT CLAIMS: i. Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in Scott circuit, characterized in that the single-phase thrust transformer forming the height transformer in the Scott circuit has two additional regulating windings (20-9o and 30-80), each of which with one of the two standard windings 50-9o bmc. 40-8o) of the other single-phase thrust transformer (base transformer) is connected in series. 2. Drehstrom-Regeltransformator nach Anspruch i, dadurch gekennzeichnet, daß die als Schubtransform.atoren ausgebildeten Einphasen-Regeltransformatoren in Sparschaltung geschaltet sind.2. Three-phase control transformer according to Claim i, characterized in that the designed as shear transformers Single-phase regulating transformers are connected in economy circuit.
DEK130867D 1933-07-22 1933-07-22 Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit Expired DE730286C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK130867D DE730286C (en) 1933-07-22 1933-07-22 Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK130867D DE730286C (en) 1933-07-22 1933-07-22 Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit

Publications (1)

Publication Number Publication Date
DE730286C true DE730286C (en) 1943-01-08

Family

ID=7247242

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK130867D Expired DE730286C (en) 1933-07-22 1933-07-22 Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit

Country Status (1)

Country Link
DE (1) DE730286C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086797B (en) * 1956-07-27 1960-08-11 Iaelinia Ag Fuer Elek Sche Ind Three-phase control device consisting of a three-phase main transformer and adjustable single-phase additional transformers arranged in a Scott or V circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086797B (en) * 1956-07-27 1960-08-11 Iaelinia Ag Fuer Elek Sche Ind Three-phase control device consisting of a three-phase main transformer and adjustable single-phase additional transformers arranged in a Scott or V circuit

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