EP0154697A1 - High-voltage winding with constrained potential distribution for transformers - Google Patents
High-voltage winding with constrained potential distribution for transformers Download PDFInfo
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- EP0154697A1 EP0154697A1 EP84115084A EP84115084A EP0154697A1 EP 0154697 A1 EP0154697 A1 EP 0154697A1 EP 84115084 A EP84115084 A EP 84115084A EP 84115084 A EP84115084 A EP 84115084A EP 0154697 A1 EP0154697 A1 EP 0154697A1
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- voltage
- voltage winding
- capacitor
- winding
- conductor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
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- 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
- H01F27/343—Preventing or reducing surge voltages; oscillations
- H01F27/345—Preventing or reducing surge voltages; oscillations using auxiliary conductors
Definitions
- the invention relates to a high-voltage winding with controlled voltage distribution for transformers with large nominal powers, special conductors which are currentless in normal operation being wound up to form capacitor coils for voltage control.
- a capacitor battery has become known from DE-OS 23 28 375, the individual capacitors of which winding sections assigned to them are connected in parallel. These capacitor banks are arranged spatially next to the transformer windings and are therefore not linked to the flux passing through the high-voltage windings. These capacitor batteries therefore ensure a good distribution of impulse voltages impinging on the transformer winding, but on the other hand cause only minimal or no damping of vibrations in the windings excited by switching voltages.
- Transformer windings provided with control conductors behave similarly in accordance with DE-AS 10 69 279, DE-OS 24 18 230 and DE-OS 23 23 304. These known winding arrangements show from disc coils with wrapped control conductors or from winding layers with wrapped ones Control conductors built windings. The control conductors provided in the known windings are capacitively coupled to the associated winding and are de-energized in normal operation. These control conductors also have only a very slight influence on the damping of vibrations in the windings excited by switching voltages.
- the invention is therefore based on the object of providing an arrangement for high-voltage windings with controlled voltage distribution of the type mentioned at the outset, by means of which a good effective damping of oscillating voltages in the windings is ensured in the region of their natural frequencies.
- This object is achieved in high-voltage windings with capacitor coils connected in parallel in that the capacitor coils are chained with the same flux as the high-voltage winding to be controlled and in that the two sides of each capacitor formed by the capacitor coils are connected to one another via an ohmic resistor, so that they are connected to one another together represent an RC link inductively coupled to the high-voltage winding.
- each capacitor coil is designed as a double-disc coil made of two or four conductors wound spatially in parallel, one side of which is located Capacitor coils via a potential connection on the high-voltage winding and the ohmic resistors and / or the capacitor coils are inserted into shield rings made of non-conductive material wrapped in film and provided for the end potential field control.
- Another advantageous embodiment consists in that the currentless conductor is also wrapped in the high-voltage winding and connected to it via an ohmic resistor, so that the conductor of the high-voltage coil is itself one side of the capacitor.
- Expedient embodiments of the invention when used in fine-stage layer windings consist in the fact that the currentless conductor represents an additional gear in a fine-stage layer winding designed as a multi-turn helix, or in a fine-stage layer winding that is interwoven in sections with two stages per section for an odd number of steps one in one section existing idle gear is connected to the ohmic resistor and serves as a currentless Q ser conductor.
- Appropriate configurations of the ohmic resistor used also consist in the fact that it is voltage-dependent or that it consists of the parallel connection of a voltage-dependent resistor with a fixed resistor.
- Expedient embodiments of the invention when used in normal, not interwoven, coils consist in the fact that the currentless conductor is installed as an additional coil between two coils of the winding or in that the currentless conductor or capacitor coating is designed as a shield ring.
- the analog solution for normal, not interwoven, layer windings is to design the currentless conductor or capacitor covering as an input sign.
- the wiring of high-voltage windings according to the invention is very advantageous because it enables frequency-dependent damping of voltage oscillations in the high-voltage winding in a simple manner by suitably setting the ohmic resistance, without causing a significant increase in losses at the operating frequency.
- a particularly effective damping of the high-voltage winding is forced by arranging the capacitor coils in the region of the antinodes of the magnetic stray field.
- a winding composed of two parts 12 and 13 lying axially one behind the other is arranged around an iron core leg 11, which is only indicated by a dashed line.
- the winding is carried out in a known manner as a layer or disc coil winding.
- a capacitor coil 14 is arranged, each consisting of two currentless conductors 15.
- the currentless conductors 15, each forming a capacitor coil 14, are wound spirally to form a disk coil, which, due to their spatial arrangement, are chained in front of or between the end faces of the parts 12 and 13 with the same flux as the winding itself.
- each of the capacitor coils 14 forms an RC element together with the resistor 16 assigned to it.
- the capacitor coils 14 and the winding of the parts 12 and 13 are inductively coupled to one another as a result of the linkage with the same flux, so that the resulting damping resistance of the RC element is transferred into the winding by means of a transformer. This damping keeps the amplitudes of vibrations excited, for example, by switching voltages, in manageable orders of magnitude without any particular effort.
- the capacitor coil 14 consists of two disk coils, which have the same dimensions as disk coils in the adjacent parts 12 and 13 of the connected winding.
- the capacitor coil 14 is spirally wound from two currentless conductors 15.
- the two conductors 15 are crossed out in the area of the inner windings of the disc coils.
- the two sides of the capacitor are connected to one another via a voltage-dependent resistor 17.
- the capacitor coils 14 and the parts 12 and 13 are in turn inductively coupled to one another, so that a damping resistor is also transmitted into the winding in this arrangement.
- FIG. 3 largely corresponds to that according to FIG. 2.
- the capacitor coils 14 are spirally wound from four currentless conductors 15.
- a parallel circuit comprising a fixed resistor 16 and a voltage-dependent resistor 17 is provided as an ohmic resistor.
- the embodiment according to FIG. 4 again relates to a winding made of disc coils, the winding being composed of parts 12 and 13.
- the conductor of the winding carrying the load current which is also wound in the region of the capacitor coils 14, additionally takes on the function of a currentless conductor, so that only a single currentless conductor 15 is required.
- This currentless conductor 15 is guided over two disk coils and also crossed out in addition to the outcrossing of the conductor carrying the load current.
- one end of the conductor 15 and the winding of the conductor carrying the load current, the other end of which is adjacent are connected to one another by a fixed resistor 16.
- the capacitor coils 14 also preferably have the dimensions of the disk coils in the parts 12 and 13 of the winding.
- FIG. 5 shows a single-layer coarse stage winding with a conductor 18 carrying the load current and a currentless conductor 15 wound in parallel with it spatially.
- the two conductors 18 and 15 in turn form the two sides of a capacitor.
- One end of the coarse stage winding is connected to the other end of the currentless conductor 15 opposite its other end via a fixed resistor 16, so that an RC element which is inductively coupled to the coarse stage winding is formed.
- FIG. 6 shows a fine-stage winding consisting of four conductors 18 with the taps 1 to 5 that are spatially parallel in one position and carry the load current.
- An electroless conductor 15 is also wrapped in this winding position in an additional gear. The beginning of one of the The conductor 18 carrying the load current is connected to the end of the currentless conductor 15 in a manner analogous to the embodiment according to FIG. 5 via a fixed resistor 16.
- FIG. 7 shows a single-layer fine-stage winding, interwoven in sections, with taps 1 to 10 and with two stages per section, so that an even number of gears is required. Considering the level selector, however, an odd number of levels is appropriate. As a result, there is an idling gear with the number of turns of one stage in such windings. In the exemplary embodiment shown in FIG. 7, the end of this idling gear is connected to the beginning of the associated step winding via a fixed resistor 16.
- the idling gear takes over the function of the currentless conductor 15 by forming a coil-shaped capacitor with the windings of the associated step winding, which in turn, with the fixed resistor 16, represents an RC element inductively coupled to the fine step winding.
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- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
Description
Die Erfindung betrifft eine Hochspannungswicklung mit gesteuerter Spannungsverteilung für Transformatoren mit großen Nennleistungen, wobei zur Spannungssteuerung besondere, im Normalbetrieb stromlose Leiter zu Kondensatorspulen aufgewickelt sind.The invention relates to a high-voltage winding with controlled voltage distribution for transformers with large nominal powers, special conductors which are currentless in normal operation being wound up to form capacitor coils for voltage control.
Bei der Anregung von Wicklungen mit schwingenden Schaltspannungen mit einer Frequenz, die einer Eigenfrequenz der Wicklung entspricht, d.h. bei Resonanzanregung, sind die entstehenden Amplituden und Gradienten der resonanzfrequenteij Spannungsverteilung um so höher, je geringer die wirksame Wicklungsdämpfung ist. Diese hohen Amplituden und großen Gradienten sind sehr unerwünscht.When exciting windings with oscillating switching voltages at a frequency that corresponds to a natural frequency of the winding, i.e. with resonance excitation, the resulting amplitudes and gradients of the resonance frequency distribution are higher, the lower the effective winding damping. These high amplitudes and large gradients are very undesirable.
Zur Steuerung der Spannungsverteilung in Hochspannungswicklungen von Transformatoren ist durch die DE-OS 23 28 375 eine Kondensatorbatterie bekannt geworden, deren einzelne Kondensatoren ihnen jeweils zugeordneten Wicklungsabschnitten parallelgeschaltet sind. Diese Kondensatorbatterien sind räumlich neben den Transformatorwicklungen angeordnet und dadurch nicht mit dem die Hochspannungswicklungen durchsetzenden Fluß verkettet. Diese Kondensatorbatterien sorgen daher zwar für eine gute Verteilung von auf die Transformatorwicklung auftreffenden Stoßspannungen, bewirken jedoch andererseits nur eine minimale oder gar keine Dämpfung von durch Schaltspannungen angeregten Schwingungen in den Wicklungen.To control the voltage distribution in high-voltage windings of transformers, a capacitor battery has become known from DE-OS 23 28 375, the individual capacitors of which winding sections assigned to them are connected in parallel. These capacitor banks are arranged spatially next to the transformer windings and are therefore not linked to the flux passing through the high-voltage windings. These capacitor batteries therefore ensure a good distribution of impulse voltages impinging on the transformer winding, but on the other hand cause only minimal or no damping of vibrations in the windings excited by switching voltages.
Ähnlich verhalten sich auch mit Steuerleitern versehene Transformatorwicklungen gemäß der DE-AS 10 69 279, der DE-OS 24 18 230 sowie der DE-OS 23 23 304. Diese be- kannten Wicklungsanordnungen zeigen aus Scheibenspulen mit eingewickelten Steuerleitern bzw. aus Wicklungslagen mit eingewickelten Steuerleitern aufgebaute Wicklungen. Die in den bekannten Wicklungen vorgesehenen Steuerleiter sind kapazitiv mit der jeweils zugehörigen Wicklung gekoppelt und sind im Normalbetrieb stromlos. Auch diese Steuerleiter haben nur einen sehr geringen Einfluß auf die Dämpfung von durch Schaltspannungen angeregte Schwingungen in den Wicklungen.Transformer windings provided with control conductors behave similarly in accordance with DE-AS 10 69 279, DE-OS 24 18 230 and DE-OS 23 23 304. These known winding arrangements show from disc coils with wrapped control conductors or from winding layers with wrapped ones Control conductors built windings. The control conductors provided in the known windings are capacitively coupled to the associated winding and are de-energized in normal operation. These control conductors also have only a very slight influence on the damping of vibrations in the windings excited by switching voltages.
Der Erfindung liegt daher die Aufgabe zugrunde, für Hochspannungswicklungen mit gesteuerter Spannungsverteilung der eingangs genannten Art eine Anordnung zu schaffen, durch die eine gut wirksame Dämpfung von schwingenden Spannungen in den Wicklungen im Bereich von deren Eigenfrequenzen gewährleistet ist.The invention is therefore based on the object of providing an arrangement for high-voltage windings with controlled voltage distribution of the type mentioned at the outset, by means of which a good effective damping of oscillating voltages in the windings is ensured in the region of their natural frequencies.
Diese Aufgabe wird bei Hochspannungswicklungen mit parallel geschalteten Kondensatorspulen dadurch gelöst, daß die Kondensatorspulen mit demselben Fluß verkettet sind wie die zu steuernde Hochspannüngswicklung und dadurch, daß die beiden Seiten jedes von den Kondensatorspulen gebildeten Kondensators über einen ohmschen Widerstand miteinander verbunden sind, so daß sie mit diesem zusammen ein mit der Hochspannungswicklung induktiv gekoppeltes RC-Glied darstellen.This object is achieved in high-voltage windings with capacitor coils connected in parallel in that the capacitor coils are chained with the same flux as the high-voltage winding to be controlled and in that the two sides of each capacitor formed by the capacitor coils are connected to one another via an ohmic resistor, so that they are connected to one another together represent an RC link inductively coupled to the high-voltage winding.
Nach vorteilhaften Ausgestaltungen und zweckmäßigen Weiterbildungen ist jede Kondensatorspule als eine Doppelscheibenspule aus zwei oder vier räumlich parallel gewickelten Leitern ausgebildet, liegt eine Seite der Kondensatorspulen über eine Potentialverbindung an der Hochspannungswicklung und sind die ohmschen Widerstände und/oder die Kondensatorspulen in zur stirnseitigen Potentialfeldsteuerung vorgesehene Schirmringe ausofolienumwickeltem, nicht leitendem Werkstoff eingelegt.According to advantageous refinements and expedient further developments, each capacitor coil is designed as a double-disc coil made of two or four conductors wound spatially in parallel, one side of which is located Capacitor coils via a potential connection on the high-voltage winding and the ohmic resistors and / or the capacitor coils are inserted into shield rings made of non-conductive material wrapped in film and provided for the end potential field control.
Eine andere vorteilhafte Ausgestaltung besteht darin, daß der stromlose Leiter in die Hochspannungswicklung mit eingewickelt und mit dieser über einen ohmschen Widerstand verbunden ist, so daß der Leiter der Hochspannungsspule selbst eine Seite des Kondensators ist.Another advantageous embodiment consists in that the currentless conductor is also wrapped in the high-voltage winding and connected to it via an ohmic resistor, so that the conductor of the high-voltage coil is itself one side of the capacitor.
Zweckmäßige Ausgestaltungen der Erfindung bei ihrer Anwendung in Feinstufenlagenwicklungen bestehen darin, daß der stromlose Leiter einen zusätzlichen Gang in einer als mehrgängiger Wendel ausgeführten Feinstufenlagenwicklung darstellt oder daß in einer abschnittsweise mit jeweils zwei Stufen je Abschnitt ineinandergewickelten Feinstufenlagenwicklung für eine ungerade Anzahl von Stufen ein in einem Abschnitt vorhandener leerlaufender Gang mit dem ohmschen Widerstand beschaltet ist und als stromlQser Leiter dient.Expedient embodiments of the invention when used in fine-stage layer windings consist in the fact that the currentless conductor represents an additional gear in a fine-stage layer winding designed as a multi-turn helix, or in a fine-stage layer winding that is interwoven in sections with two stages per section for an odd number of steps one in one section existing idle gear is connected to the ohmic resistor and serves as a currentless Q ser conductor.
Zweckmäßige Ausgestaltungen des eingesetzten ohmschen Widerstandes bestehen auch darin, daß dieser spannungsabhängig ist oder daß dieser aus der Parallelschaltung eines spannungsabhängigen mit einem festen Widerstand besteht.Appropriate configurations of the ohmic resistor used also consist in the fact that it is voltage-dependent or that it consists of the parallel connection of a voltage-dependent resistor with a fixed resistor.
Zweckmäßige Ausgestaltungen der Erfindung bei ihrer Anwendung in normalen, nicht ineinandergewickelten, Spulen bestehen darin, daß der stromlose Leiter als Zusatzspule zwischen zwei Spulen der Wicklung eingebaut ist oder darin, daß der stromlose Leiter bzw. Kondensatorbelag als Schirmring ausgebildet ist.Expedient embodiments of the invention when used in normal, not interwoven, coils consist in the fact that the currentless conductor is installed as an additional coil between two coils of the winding or in that the currentless conductor or capacitor coating is designed as a shield ring.
Die analoge Lösung für normale, nicht ineinandergewickelte, Lagenwicklungen besteht darin, den stromlosen Leiter bzw. Kondensatorbelag als Eingangsschild auszubilden.The analog solution for normal, not interwoven, layer windings is to design the currentless conductor or capacitor covering as an input sign.
Die erfindungsgemäße Beschaltung von Hochspannungswicklungen ist sehr vorteilhaft, weil sie in einfacher Weise durch geeignete Einstellung des ohmschen Widerstandes eine frequenzabhängige Dämpfung von Spannungsschwingungen in der Hochspannungswicklung ermöglicht, ohne dabei eine nennenswerte Erhöhung der Verluste bei der Betriebsfrequenz zu verursachen. Dabei wird durch Anordnung der Kondensatorspulen im Bereich der Schwingungsbäuche des magnetischen Streufeldes eine besonders wirksame Bedämpfung der Hochspannungswicklung erzwungen.The wiring of high-voltage windings according to the invention is very advantageous because it enables frequency-dependent damping of voltage oscillations in the high-voltage winding in a simple manner by suitably setting the ohmic resistance, without causing a significant increase in losses at the operating frequency. A particularly effective damping of the high-voltage winding is forced by arranging the capacitor coils in the region of the antinodes of the magnetic stray field.
Ausführungsbeispiele der Erfindung sind arhand einer Zeichnung näher erläutert.Embodiments of the invention are explained in more detail with reference to a drawing.
In allen Figuren sind lediglich die prinzipiellen Leiteranordnungen im Schnitt dargestellt. Im einzelnen zeigen: -
- Figur 1 eine Wicklung beliebiger Art mit je einer Kondensatorspule in der axialen Wicklungsmitte und an einem axialen Wicklungsende,
Figur 2 eine Kondensatorspule aus zwei räumlich parallelen Leitern in einer Scheibenspulenanordnung,Figur 3 eine Kondensatorspule aus vier räumlich parallelen Leitern in einer Scheibenspulenanordnung,- Figur 4 eine Kondensatorspule, deren eine Kondensatorseite von dem den Laststrom führenden Leiter einer Scheibenspulenwicklung dargestellt ist,
- Figur 5 eine Grobstufenlagenwicklung,
Figuren 6 und 7 je eine Feinstufenlagenwicklung,Figur 8 eine in eine normale Doppelspulenwicklung eingebaute stromlose Zusatzspule,- Figuren 9 und 10 Kondensatorspulen, deren stromloser Belag als Schirmring ausgebildet ist, und
Figur 11 eine Kondensatorspule, die aus der Ei.i-gangslage und dem Eingangsschild einer Lagenwicklung besteht.
- 1 shows a winding of any type, each with a capacitor coil in the axial winding center and at an axial winding end,
- FIG. 2 shows a capacitor coil made of two spatially parallel conductors in a disk coil arrangement,
- FIG. 3 shows a capacitor coil made up of four spatially parallel conductors in a disk coil arrangement,
- FIG. 4 shows a capacitor coil, one capacitor side of which is shown by the conductor of a disk coil winding carrying the load current,
- FIG. 5 a coarse layer winding,
- FIGS. 6 and 7 each have a fine stage winding,
- 8 shows a currentless additional coil installed in a normal double coil winding, FIG.
- Figures 9 and 10 capacitor coils, the currentless coating is designed as a shield ring, and
- Figure 11 shows a capacitor coil, which consists of the initial position and the input plate of a layer winding.
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided with the same reference symbols in all figures.
Um einen lediglich als punktgestrichelte Linie angedeuteten Eisenkernschenkel 11 ist gemäß Figur 1 eine aus zwei axial hintereinanderliegenden Teilen 12 und 13 aufgebaute Wicklung angeordnet. Die Wicklung ist in bekannter Weise als Lagen- oder Scheibenspulenwicklung ausgeführt. Zwischen den beiden Teilen 12 und 13 sowie unterhalb des Teiles 13 an dessen Stirnseite ist jeweils eine Kondensatorspule 14 aus jeweils zwei stromlosen Leitern 15 angeordnet. Die jeweils eine Kondensatorspule 14 bildenden stromlosen Leiter 15 sind spiralig zu einer Scheibenspule aufgewickelt, die durch ihre räumliche Anordnung jeweils vor bzw. zwischen Stirnseiten der Teile 12 und 13 mit demselben Fluß verkettet sind wie die Wicklung selbst.According to FIG. 1, a winding composed of two
Die Anschlüsse der beiden Seiten des jeweils von einer Kondensatorspule 14 gebildeten Kondensators liegen an einem ohmschen Widerstand 16. Dadurch bildet jede der Kondensatorspulen 14 zusammen mit dem ihr jeweils zugeordneten Widerstand 16 ein RC-Glied. Die Kondensatorspulen 14 und die Wicklung aus den Teilen 12 und 13 sind infolge der Verkettung mit demselben Fluß induktiv miteinander gekoppelt, so daß der resultierende Dämpfungswiderstand des RC-Gliedes transformatorisch in die Wicklung übertragen wird. Durch diese Dämpfung werden die Amplituden von beispielsweise durch Schaltspannungen angeregte Schwingungen ohne besonderen Aufwand in beherrschbaren Größenordnungen gehalten.The connections of the two sides of the capacitor formed by a
Bei der Ausführung gemäß Figur 2 besteht die Kondensatorspule 14 aus zwei Scheibenspulen, die die gleichen Abmessungen haben wie Scheibenspulen in den benachbar- .ten Teilen 12 und 13 der beschalteten Wicklung. Auch bei dieser Ausführung ist die Kondensatorspule 14 aus zwei stromlosen Leitern 15 spiralig aufgewickelt. Die beiden Leiter 15 sind im Bereich der inneren Windungen der Scheibenspulen gegeneinander ausgekreuzt. Die beiden Seiten des Kondensators sind über einen spannungsabhängigen Widerstand 17 miteinander verbunden. Die Kondensatorspulen 14 sowie die Teile 12 und 13 sind wiederum induktiv miteinander gekoppelt, so daß auch bei dieser Anordnung ein Dämpfungswiderstand in die Wicklung übertragen wird.In the embodiment according to FIG. 2, the
Die Anordnung gemäß Figur 3 entspricht weitgehend derjenigen gemäß Figur 2. Die Kondensatorspulen 14 sind jedoch in diesem Fall aus vier stromlosen Leitern 15 spiralig aufgewickelt. Außerdem ist als ohmscher Widerstand eine Parallelschaltung aus einem festen Widerstand 16 sowie einem spannungsabhängigen Widerstand 17 vorgesehen.The arrangement according to FIG. 3 largely corresponds to that according to FIG. 2. However, in this case the
Auch die Ausführung gemäß Figur 4 bezieht sich wieder auf eine Wicklung aus Scheibenspulen, wobei die Wicklung aus Teilen 12 und 13 zusammengesetzt ist. Bei dieser Ausführung übernimmt jedoch der auch im Bereich der Kondensatorspulen 14 durchgewickelte, den Laststrom führende Leiter der Wicklung zusätzlich die Funktion eines stromlosen Leiters, so daß lediglich ein einziger stromloser Leiter 15 erforderlich ist. Dieser stromlose Leiter 15 ist über zwei Scheibenspulen geführt und neben der Auskreuzung des den Laststrom führenden Leiters ebenfalls ausgekreuzt. Gegenüber der Auskreuzung sind ein Ende des Leiters 15 und die dessen anderem Ende anliegende Windung des den Laststrom führenden Leiters durch einen festen Widerstand 16 miteinander verbunden. Dadurch ist zusätzlich zur induktiven Kopplung der Wicklung mit der Kondensatorspule 14 deren Potential bestimmt. Durch entsprechende Bemessung des stromlosen Leiters 15 haben auch hierbei die Kondensatorspulen 14 vorzugsweise die Abmessungen der Scheibenspulen in den Teilen 12 und 13 der Wicklung.The embodiment according to FIG. 4 again relates to a winding made of disc coils, the winding being composed of
Figur 5 zeigt eine einlagige Grobstufenwicklung mit einem den Laststrom führenden Leiter 18 und einem räumlich parallel hierzu mit eingewickelten stromlosen Leiter 15. Die beiden Leiter 18 und 15 bilden wiederum die beiden Seiten eines Kondensators. Ein Ende der Grobstufenwicklung ist mit dem deren anderem Ende gegenüberliegenden Ende des stromlosen Leiters 15 über einen festen Widerstand 16 verbunden, so daß ein induktiv mit der Grobstufenwicklung gekoppeltes RC-Glied gebildet ist.FIG. 5 shows a single-layer coarse stage winding with a
Figur 6 zeigt eine Feinstufenwicklung aus vier räumlich parallel in einer Lage liegenden, den Laststrom führenden Leitern 18 mit den Anzapfungen 1 bis 5. In diese Wicklungslage ist in einem zusätzlichen Gang ein stromloser Leiter 15 mit eingewickelt. Der Anfang eines der den Laststrom führenden Leiters 18 ist mit dem Ende des stromlosen Leiters 15 analog zu der Ausführung gemäß Figur 5 über einen festen Widerstand 16 verbunden.FIG. 6 shows a fine-stage winding consisting of four
Figur 7 zeigt schließlich eine abschnittsweise ineinandergewickelte einlagige Feinstufenwicklung mit Anzapfungen 1 bis 10 und mit jeweils zwei Stufen je Abschnitt, so daß eine gerade Anzahl von Gängen erforderlich ist. Mit Rücksicht auf den Stufenwähler ist jedoch eine ungerade Anzahl von Stufen zweckmäßig. Infolgedessen ist bei solchen Wicklungen ein leerlaufender Gang mit der Windungszahl einer Stufe vorhanden. Das Ende dieses leerlaufenden Ganges ist beim in Figur 7 dargestellten Ausführungsbeispiel mit dem Anfang der zugehörigen Stufenwicklung über einen festen Widerstand 16 verbunden. Dadurch übernimmt in dieser Anordnung der leerlaufende Gang die Funktion des stromlosen Leiters 15, indem er mit den Windungen der zugehörigen Stufenwicklung einen spulenförmigen Kondensator bildet, der wiederum mit dem festen Widerstand 16 ein mit der Feinstufenwicklung induktiv gekoppeltes RC-Glied darstellt.Finally, FIG. 7 shows a single-layer fine-stage winding, interwoven in sections, with taps 1 to 10 and with two stages per section, so that an even number of gears is required. Considering the level selector, however, an odd number of levels is appropriate. As a result, there is an idling gear with the number of turns of one stage in such windings. In the exemplary embodiment shown in FIG. 7, the end of this idling gear is connected to the beginning of the associated step winding via a fixed
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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AT84115084T ATE27381T1 (en) | 1984-03-12 | 1984-12-10 | HIGH VOLTAGE WINDING WITH CONTROLLED VOLTAGE DISTRIBUTION FOR TRANSFORMERS. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE3409004 | 1984-03-12 | ||
DE3409004 | 1984-03-12 | ||
DE3411500 | 1984-03-28 | ||
DE19843411500 DE3411500A1 (en) | 1984-03-12 | 1984-03-28 | HIGH VOLTAGE WINDING WITH CONTROLLED VOLTAGE DISTRIBUTION FOR TRANSFORMERS |
Publications (2)
Publication Number | Publication Date |
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EP0154697A1 true EP0154697A1 (en) | 1985-09-18 |
EP0154697B1 EP0154697B1 (en) | 1987-05-20 |
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Application Number | Title | Priority Date | Filing Date |
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EP84115084A Expired EP0154697B1 (en) | 1984-03-12 | 1984-12-10 | High-voltage winding with constrained potential distribution for transformers |
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EP (1) | EP0154697B1 (en) |
BR (1) | BR8501064A (en) |
DE (2) | DE3411500A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE975856C (en) * | 1945-01-04 | 1962-10-31 | English Electric Co Ltd | Winding arrangement with disc windings, especially for transformers |
DE1146191B (en) * | 1957-08-05 | 1963-03-28 | Magdalena Jansen Geb Haase | Diverter switch with variable ohmic switching resistors |
DE2117422A1 (en) * | 1971-04-08 | 1972-10-12 | Schorch Gmbh | Control transformer with surge voltage protected step winding |
DE2323304A1 (en) * | 1973-05-09 | 1974-11-28 | Transformatoren Union Ag | STEP WINDING FOR TRANSFORMERS |
DE2328375C3 (en) * | 1973-06-04 | 1978-12-14 | Transformatoren Union Ag, 7000 Stuttgart | Capacitor battery for voltage control on the windings of transformers and chokes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1069279B (en) * | 1959-11-19 | |||
DE1028677B (en) * | 1955-09-12 | 1958-04-24 | Licentia Gmbh | Split and hollow shield ring for transformers of highest voltage and power |
-
1984
- 1984-03-28 DE DE19843411500 patent/DE3411500A1/en not_active Withdrawn
- 1984-12-10 DE DE8484115084T patent/DE3463871D1/en not_active Expired
- 1984-12-10 EP EP84115084A patent/EP0154697B1/en not_active Expired
-
1985
- 1985-03-11 BR BR8501064A patent/BR8501064A/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE975856C (en) * | 1945-01-04 | 1962-10-31 | English Electric Co Ltd | Winding arrangement with disc windings, especially for transformers |
DE1146191B (en) * | 1957-08-05 | 1963-03-28 | Magdalena Jansen Geb Haase | Diverter switch with variable ohmic switching resistors |
DE2117422A1 (en) * | 1971-04-08 | 1972-10-12 | Schorch Gmbh | Control transformer with surge voltage protected step winding |
DE2323304A1 (en) * | 1973-05-09 | 1974-11-28 | Transformatoren Union Ag | STEP WINDING FOR TRANSFORMERS |
DE2328375C3 (en) * | 1973-06-04 | 1978-12-14 | Transformatoren Union Ag, 7000 Stuttgart | Capacitor battery for voltage control on the windings of transformers and chokes |
Also Published As
Publication number | Publication date |
---|---|
BR8501064A (en) | 1985-10-29 |
DE3411500A1 (en) | 1985-09-12 |
DE3463871D1 (en) | 1987-06-25 |
EP0154697B1 (en) | 1987-05-20 |
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