WO2001022100A1 - Package for a rogowsky bobbin having counter winding - Google Patents

Package for a rogowsky bobbin having counter winding Download PDF

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Publication number
WO2001022100A1
WO2001022100A1 PCT/AT2000/000248 AT0000248W WO0122100A1 WO 2001022100 A1 WO2001022100 A1 WO 2001022100A1 AT 0000248 W AT0000248 W AT 0000248W WO 0122100 A1 WO0122100 A1 WO 0122100A1
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WO
WIPO (PCT)
Prior art keywords
winding
winding body
rogowsky
groove
counterwinding
Prior art date
Application number
PCT/AT2000/000248
Other languages
German (de)
French (fr)
Inventor
Georg Dorfmeister
Original Assignee
Egston Eggenburger System Elektronik Gesellschaft Mbh
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 Egston Eggenburger System Elektronik Gesellschaft Mbh filed Critical Egston Eggenburger System Elektronik Gesellschaft Mbh
Priority to AU72603/00A priority Critical patent/AU7260300A/en
Priority to DE20080180U priority patent/DE20080180U1/en
Publication of WO2001022100A1 publication Critical patent/WO2001022100A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils

Definitions

  • the invention relates to a winding body for a Rogowsky coil with counterwinding, and a Rogowsky coil comprising a winding spirally applied to an annular winding carrier with a first and a second winding end, the second winding end with a lying in the interior of the winding body, away from the area of the second winding end is connected up to the area of the first winding end extending counter-winding.
  • Rogowsky coils with such a structure are known for example from DE-Al-17 91 011 and DE-Al-19 05 468.
  • DE-Al-19 05 468 describes a current measuring clamp, the “clamp” surrounding the conductor to be measured is formed from two winding carriers on which windings are applied.
  • the winding carriers are hollow and take the return of the homogeneous measuring winding inside their cavity as DE-Al-17 91 011 has a very similar content:
  • a current measuring device is described which has a coil through which the conductor to be measured is passed. It is stated that the winding body of this coil is on the inside is hollow, within which cavity the return of the conductor runs "in the axis of the coil former".
  • Self-contained ring bodies with an annular cavity are very difficult to manufacture: the production by means of a casting process fails from the outset because a molded part which keeps the internal cavity free of casting material could no longer be removed from the finished casting.
  • the production of an annular body from a tubular material is also difficult because pipes cannot be bent without special measures without kinking.
  • the introduction of the counter-turn into the cavity proves to be difficult: the cavity is not accessible over large areas similar to a tunnel, which means that the counter-turn has to be threaded into the cavity, which can be very tedious with easily deforming copper wires.
  • the attachment of the counterwinding on the winding body to be specified should be particularly simple.
  • the winding body is a solid body and has a groove for receiving the counterwinding.
  • a solid body is particularly simple compared to the manufacture of a hollow body; in particular, a solid body can be cast or bent from rod material into its final shape.
  • a groove is accessible over its entire length, so that the insertion of the counter-turn into this groove is as simple as winding a line onto a cable drum.
  • the groove is worked into the outer lateral surface of the winding body. This means that the counterwinding need not be fixed in the groove by means of special measures (such as gluing). If the counterwinding is placed tightly in a groove placed in this way, it will hold itself like a cable wound on a cable drum.
  • the depth of the groove is approximately half the thickness of the winding body.
  • the winding body is designed as a self-contained ring, because Rogowsky coils are usually designed as ring coils to achieve the most accurate measurement result possible, and therefore an annular winding body is suitable for producing Rogowsky coils corresponding to the rule is.
  • Fig.l a Rogowsky coil in oblique view
  • FIG. 2a shows a winding body according to the invention for a Rogowsky coil in plan view
  • FIG. 2a shows the winding body according to FIG. 2a in side elevation
  • FIG. 2d shows a section along the line A-A shown in FIG. 2a through the winding body of FIG. 2a;
  • FIG. 2a shows a section through the winding former of FIG. 2a along the line B-B drawn in FIG. 2a;
  • FIG 3 shows a Rogowsky coil according to the invention with a multi-part winding support.
  • Each current-carrying conductor 1 builds up a magnetic field around it, which is symbolically represented by the arrows 2 in FIG.
  • the strength of this magnetic field is proportional to the amount of current flowing in conductor 1.
  • the Rogowsky coil shown in Fig.l comprises a winding 4 applied spirally to an annular winding support 3 with a first winding end 5 and a second winding end 6.
  • the Rogowsky coil uses the discussed magnetic field structure of a current-carrying conductor 1 for the galvanically isolated measurement of the in the Conductor 1 prevailing current intensity:
  • the conductor 1 to be measured is passed through the central opening 11 of the ring-shaped winding support 3 of the Rogowsky coil, as a result of which the alternating magnetic field generated by this conductor 1 passes through the spiral windings 7 of the Rogowsky coil.
  • the actual current signal is only obtained by integrating the measured value.
  • Rogowsky coils are air coils, i.e. they have no ferromagnetic core; the winding support 3 also consists of a non-ferromagnetic material.
  • the advantage over conventional current transformers is that the lack of ferromagnetic materials means that there is a strictly linear relationship between the current to be measured and the output voltage of the coil over a very large measuring range.
  • Rogowsky coils A disadvantage of Rogowsky coils is the fact that the winding 4, due to its arrangement on an annular winding carrier 3, forms a single further turn in its entirety, which is normal to the spiral turns 7. Magnetic interference fields, which run normal to the magnetic field of the conductor 1 to be measured, can induce voltages in this winding, which falsify the measurement result. Since this interfering turn encompasses a relatively large area compared to the area surrounding the spiral turns 7, considerable voltages which falsify the measurement result can be induced in the winding 4 even with low interference field strengths.
  • This problem is known and has already been solved in the prior art by introducing a counterwinding 8.
  • This counterwinding 8 is formed by a single electrical conductor which is arranged in the interior of the winding carrier 3 carrying the measuring winding 4, extends from the region of the second winding end 6 to the region of the first winding end 5 and the second winding end 6 in the region of the first End of winding 5 leads back.
  • the present invention relates to the design of a winding body with which the winding carrier 3 of a Rogowsky coil with a counter-winding 8 can be formed.
  • the winding body is identical to the winding carrier 3.
  • the present invention thus relates to a winding body, which is preferably designed as a self-contained ring, but can also be only a segment of such a ring.
  • Ring-shaped are to be understood in a broad sense, i.e. it is not necessary that
  • Winding carrier 3 or winding body are circular. Winding carrier 3 or
  • the winding body can deviate from the circular shape, for example as shown in the attached drawing figures, be oval but also angular, that is to say in the form of a polygon.
  • winding carriers 3 or winding bodies it is not necessary for winding carriers 3 or winding bodies to be self-contained ring bodies; it may well be that winding body material is kept free and extends over the entire cross section of the winding carrier 3 or winding body
  • Sections i.e. air gaps
  • Sections i.e. air gaps
  • Rogowsky coil with counterwinding 8 is initially characterized in that it is a
  • this groove 9 is not essential to the invention, it can run along any line of the surface of the winding body.
  • the groove 9 is incorporated into the outer circumferential surface 10 of the winding body.
  • Example outer surface 10 is to be understood as meaning that half of the winding body outer surface which faces away from the central opening 11 of the winding carrier 3 (cf.
  • the groove 9 is preferably arranged at the level of the axis of symmetry 12 and extends in the direction of this axis of symmetry 12.
  • the depth t of the groove 9 is approximately half the thickness d of the winding body, but this is not essential for the proper functioning of the counterwinding 8 of the Rogowsky coil.
  • Winding body is particularly simple: First, the counterwinding 8 is produced by
  • the winding 4 is then manufactured starting at its second end 6
  • the groove 9 can be produced by machining processes (turning, milling); When the winding body according to the invention is produced by a casting process, this groove 9 can also be kept free of winding body material by providing corresponding moldings in the casting mold.

Abstract

The invention relates to a package for a Rogowsky bobbin having counterwinding (8). Said package is a solid body and has a groove (9) for receiving the counterwinding (8).

Description

Wickelkörper für eine Rogowsky-Spule mit Gegenwindung Winding body for a Rogowsky coil with a counter-turn
Die Erfindung betrifft einen Wickelkörper für eine Rogowsky-Spule mit Gegenwindung, sowie eine Rogowsky-Spule umfassend eine auf einen ringförmigen Wicklungsträger spiralförmig aufgebrachte Wicklung mit einem ersten und einem zweiten Wicklungsende, wobei das zweite Wicklungsende mit einer im Inneren des Wickelkörpers liegenden, sich vom Bereich des zweiten Wicklungsendes bis in den Bereich des ersten Wicklungsendes erstreckenden Gegenwindung verbunden ist.The invention relates to a winding body for a Rogowsky coil with counterwinding, and a Rogowsky coil comprising a winding spirally applied to an annular winding carrier with a first and a second winding end, the second winding end with a lying in the interior of the winding body, away from the area of the second winding end is connected up to the area of the first winding end extending counter-winding.
Rogowsky-Spulen mit einem solchen Aufbau sind beispielsweise durch die DE-Al- 17 91 011 und die DE-Al-19 05 468 bekannt geworden.Rogowsky coils with such a structure are known for example from DE-Al-17 91 011 and DE-Al-19 05 468.
Die DE-Al-19 05 468 beschreibt eine Strommeßzange, deren den zu vermessenden Leiter umschließende „Zange" aus zwei Wicklungsträgern gebildet ist, auf welchen Wicklungen aufgebracht sind. Die Wicklungsträger sind hohl ausgebildet und nehmen im Inneren ihres Hohlraumes die Rückführung der homogenen Meßwicklung als Gegenwindung auf. Die DE-Al-17 91 011 hat sehr ähnlichen Inhalt: Auch hier wird eine Strommeß-Einrichtung beschrieben, die eine Spule aufweist, durch welche der zu vermessende Leiter hindurch geführt ist. Es ist angeführt, daß der Wickelkörper dieser Spule innen hohl ist, innerhalb welchen Hohlraumes die Rückführung des Leiters „in der Achse des Spulenkörpers" verläuft. In sich geschlossene Ringkörper mit einem ringförmigen Hohlraum sind nur sehr schwer fertigbar: Die Herstellung durch einen Gußprozeß fällt von vornherein aus, weil ein den inneren Hohlraum von Gußmaterial freihaltendee Formteil aus dem fertigen Gußstück nicht mehr entfernt werden könnte. Die Herstellung eines Ringkörpers aus einem rohrförmigen Material ist ebenfalls schwierig, weil Rohre nicht ohne besondere Maßnahmen gebogen werden können, ohne abzuknicken. Abgesehen von diesen Herstellungsproblemen erweist sich das Einbringen der Gegenwindung in den Hohlraum als schwierig: Der Hohlraum ist über weite Bereiche ähnlich einem Tunnel nicht zugänglich, wodurch die Gegenwindung in den Hohlraum eingefädelt werden muß, was bei sich leicht verformenden Kupferdrähten sehr mühsam sein kann.DE-Al-19 05 468 describes a current measuring clamp, the “clamp” surrounding the conductor to be measured is formed from two winding carriers on which windings are applied. The winding carriers are hollow and take the return of the homogeneous measuring winding inside their cavity as DE-Al-17 91 011 has a very similar content: Here, too, a current measuring device is described which has a coil through which the conductor to be measured is passed. It is stated that the winding body of this coil is on the inside is hollow, within which cavity the return of the conductor runs "in the axis of the coil former". Self-contained ring bodies with an annular cavity are very difficult to manufacture: the production by means of a casting process fails from the outset because a molded part which keeps the internal cavity free of casting material could no longer be removed from the finished casting. The production of an annular body from a tubular material is also difficult because pipes cannot be bent without special measures without kinking. Apart from these manufacturing problems, the introduction of the counter-turn into the cavity proves to be difficult: the cavity is not accessible over large areas similar to a tunnel, which means that the counter-turn has to be threaded into the cavity, which can be very tedious with easily deforming copper wires.
Es ist Aufgabe der vorliegenden Erfindung, einen Wickelkörper für eine Rogowsky-Spule anzugeben, welcher besonders einfach herstellbar ist, selbst wenn er die Gestalt eines in sich geschlossenen Ringes aufweist. Darüberhinaus soll das Anbringen der Gegenwindung auf dem anzugebenden Wickelkörper besonders einfach sein.It is an object of the present invention to provide a winding body for a Rogowsky coil, which is particularly simple to manufacture, even if it has the shape of a self-contained ring. In addition, the attachment of the counterwinding on the winding body to be specified should be particularly simple.
Erfindungsgemäß wird dies dadurch erreicht, daß der Wickelkörper ein Vollkörper ist und eine Nut zur Aufnahme der Gegenwindung aufweist.According to the invention, this is achieved in that the winding body is a solid body and has a groove for receiving the counterwinding.
Die Herstellung eines Vollkörpers ist verglichen mit der Herstellung eines Hohlkörpers besonders einfach, insbesondere kann eine Vollkörper gegossen bzw. aus Stangenmaterial in seine endgültige Form gebogen werden. Eine Nut ist im Gegensatz zu einem Hohlraum auf ihrer gesamten Länge zugänglich, sodaß das Einlegen der Gegenwindung in diese Nut ähnlich einfach ist, wie das Aufwickeln einer Leitung auf eine Kabeltrommel. Gemäß einer besonders bevorzugten Ausführungsform der Erfindung kann vorgesehen sein, daß die Nut in die äußere Mantelfläche des Wickelkörpers eingearbeitet ist. Damit braucht die Gegenwindung nicht mittels gesonderter Maßnahmen (wie z.B. Kleben) in der Nut fixiert werden, wird die Gegenwindung straff gespannt in eine derart plazierte Nut eingelegt, hält sie sich ähnlich einer auf eine Kabeltrommel aufgewickelte Leitung von selbst. Weiters kann vorgesehen sein, daß die Tiefe der Nut etwa die Hälfte der Dicke des Wickelkörpers beträgt.The manufacture of a solid body is particularly simple compared to the manufacture of a hollow body; in particular, a solid body can be cast or bent from rod material into its final shape. In contrast to a cavity, a groove is accessible over its entire length, so that the insertion of the counter-turn into this groove is as simple as winding a line onto a cable drum. According to a particularly preferred embodiment of the invention, it can be provided that the groove is worked into the outer lateral surface of the winding body. This means that the counterwinding need not be fixed in the groove by means of special measures (such as gluing). If the counterwinding is placed tightly in a groove placed in this way, it will hold itself like a cable wound on a cable drum. Furthermore, it can be provided that the depth of the groove is approximately half the thickness of the winding body.
Wird eine Gegenwindung auf den Grund einer in dieser Weise dimensionierten Nut gelegt, so verläuft sie genau durch die Mittelpunkte der Windungen der auf den Wickelkörper aufgebrachten Meßwicklung, womit die von der Gegenwindung bewirkte Verringerung von Meßergebnis- Verfälschungen durch Stör-Magnetfelder besonders effektiv ist. Als vorteilhaft hat es sich erwiesen, daß der Wickelkörper als in sich geschlossener Ring ausgebildet ist, weil Rogowsky- Spulen zur Erzielung eines möglichst genauen Meßergebnisses in der Regel als Ringspulen ausgebildet sind und daher ein ringförmiger Wickelkörper zur Herstellung von der Regel entsprechenden Rogowsky- Spulen geeignet ist. Die Erfindung wird unter Bezugnahme auf die beigeschlossenen Zeichnungen, in welchen besonders bevorzugte Ausführungsbeispiele dargestellt sind, näher beschrieben. Dabei zeigt:If a counter-turn is placed on the bottom of a groove dimensioned in this way, it runs exactly through the center points of the turns of the measuring winding applied to the winding body, so that the reduction in measurement result falsifications caused by interference magnetic fields is particularly effective. It has proven to be advantageous that the winding body is designed as a self-contained ring, because Rogowsky coils are usually designed as ring coils to achieve the most accurate measurement result possible, and therefore an annular winding body is suitable for producing Rogowsky coils corresponding to the rule is. The invention is described in more detail with reference to the accompanying drawings, in which particularly preferred exemplary embodiments are shown. It shows:
Fig.l eine Rogowsky-Spule im Schrägriß;Fig.l a Rogowsky coil in oblique view;
Fig.2a einen erfindungsgemäßen Wickelkörper für eine Rogowsky-Spule im Grundriß;2a shows a winding body according to the invention for a Rogowsky coil in plan view;
Fig.2b den Wickelkörper gemäß Fig.2a im Seitenriß;2a shows the winding body according to FIG. 2a in side elevation;
Fig.2c den Wickelkörper gemäß Fig.2a im Aufriß;2c the winding body according to FIG. 2a in elevation;
Fig.2d einen entlang der in Fig.2a eingezeichneten Linie A-A geführten Schnitt durch den Wickelkörper der Fig.2a;2d shows a section along the line A-A shown in FIG. 2a through the winding body of FIG. 2a;
Fig.2e einen entlang der in Fig.2a eingezeichneten Linie B-B geführten Schnitt durch den Wickelkörper der Fig.2a;2a shows a section through the winding former of FIG. 2a along the line B-B drawn in FIG. 2a;
Fig.2f das Detail X der Fig.2e in größerer Darstellung undFig.2f the detail X of Fig.2e in a larger representation and
Fig.3 eine erfindungsgemäße Rogowsky-Spule mit einem mehrteiligen Wicklungsträger.3 shows a Rogowsky coil according to the invention with a multi-part winding support.
Jeder stromdurchflossene Leiter 1 baut um sich ein Magnetfeld auf, das in Fig.l mit den Pfeilen 2 symbolisch dargestellt ist. Die Stärke dieses Magnetfeldes ist proportional zur Höhe des im Leiter 1 fließenden Stromes.Each current-carrying conductor 1 builds up a magnetic field around it, which is symbolically represented by the arrows 2 in FIG. The strength of this magnetic field is proportional to the amount of current flowing in conductor 1.
Die in Fig.l dargestellte Rogowsky-Spule umfaßt eine auf einen ringförmigen Wicklungsträger 3 spiralförmig aufgebrachte Wicklung 4 mit einem ersten Wicklungsende 5 und einem zweiten Wicklungsende 6. Die Rogowsky-Spule nutzt den erörterten Magnetfeldaufbau eines stromdurchflossenen Leiters 1 zur galvanisch getrennten Messung der in dem Leiter 1 herrschenden Stromstärke: Der zu vermessende Leiter 1 wird dazu durch die zentrale Öffnung 11 des ringförmigen Wicklungsträgers 3 der Rogowsky-Spule hindurchgeführt, wodurch das von diesem Leiter 1 erzeugte Wechsel-Magnetfeld die spiralförmigen Windungen 7 der Rogowsky-Spule durchsetzt. Dieses Wechsel-Magnetfeld induziert in den Windungen 7 der Rogowsky-Spule eine Wechselspannung, deren Höhe proportional der ersten Ableitung des Stromes im zu vermessenden Leiter 1 ist (u=k-di/dt, k-di entspricht dem magnetischen Fluß). Das eigentliche Stromsignal wird erst durch Integration des Meßwertes erhalten.The Rogowsky coil shown in Fig.l comprises a winding 4 applied spirally to an annular winding support 3 with a first winding end 5 and a second winding end 6. The Rogowsky coil uses the discussed magnetic field structure of a current-carrying conductor 1 for the galvanically isolated measurement of the in the Conductor 1 prevailing current intensity: For this purpose, the conductor 1 to be measured is passed through the central opening 11 of the ring-shaped winding support 3 of the Rogowsky coil, as a result of which the alternating magnetic field generated by this conductor 1 passes through the spiral windings 7 of the Rogowsky coil. This alternating magnetic field induces an alternating voltage in the turns 7 of the Rogowsky coil, the level of which is proportional to the first derivative of the current in the conductor 1 to be measured (u = k-di / dt, k-di corresponds to the magnetic flux). The actual current signal is only obtained by integrating the measured value.
Rogowsky-Spulen sind im Gegensatz zu konventionellen Stromwandlern Luftspulen, d.h. sie weisen keinen ferromagnetischen Kern auf; auch der Wicklungsträger 3 besteht aus einem nicht-ferromagnetischen Material. Der Vorteil gegenüber konventionellen Stromwandlern besteht darin, daß durch das Fehlen von ferromagnetischen Materialien ein streng linearer Zusammenhang zwischen dem zu vermessenden Strom und der Ausgangsspannung der Spule über einen sehr großen Meßbereich besteht.In contrast to conventional current transformers, Rogowsky coils are air coils, i.e. they have no ferromagnetic core; the winding support 3 also consists of a non-ferromagnetic material. The advantage over conventional current transformers is that the lack of ferromagnetic materials means that there is a strictly linear relationship between the current to be measured and the output voltage of the coil over a very large measuring range.
Als Nachteil erweist sich bei Rogowsky-Spulen die Tatsache, daß die Wicklung 4 aufgrund ihrer Anordnung auf einem ringförmigen Wicklungsträger 3 in ihrer Gesamtheit eine einzige weitere Windung bildet, welche normal zu den spiralförmigen Windungen 7 liegt. Magnetische Störfelder, die normal zum Magnetfeld des zu vermessenden Leiters 1 verlaufen, können in dieser einen Windung Spannungen induzieren, welche das Meßergebnis verfälschen. Da diese eine störende Windung eine relativ große Fläche -verglichen mit der Fläche, welche die spiralförmigen Windungen 7 umschließen- umschließt, können schon bei geringen Stör-Feldstärken beachtliche, das Meßergebnis verfälschende Spannungen in der Wicklung 4 induziert werden.A disadvantage of Rogowsky coils is the fact that the winding 4, due to its arrangement on an annular winding carrier 3, forms a single further turn in its entirety, which is normal to the spiral turns 7. Magnetic interference fields, which run normal to the magnetic field of the conductor 1 to be measured, can induce voltages in this winding, which falsify the measurement result. Since this interfering turn encompasses a relatively large area compared to the area surrounding the spiral turns 7, considerable voltages which falsify the measurement result can be induced in the winding 4 even with low interference field strengths.
Dieses Problem ist bekannt und im Stand der Technik bereits durch Einführung einer Gegenwindung 8 gelöst worden. Diese Gegenwindung 8 ist durch einen einzelnen elektrischen Leiter gebildet, der im Inneren des die Meßwicklung 4 tragenden Wicklungsträgers 3 angeordnet ist, sich vom Bereich des zweiten Wicklungsendes 6 bis in den Bereich des ersten Wicklungsendes 5 erstreckt und das zweite Wicklungsende 6 in den Bereich des ersten Wicklungsendes 5 zurückführt.This problem is known and has already been solved in the prior art by introducing a counterwinding 8. This counterwinding 8 is formed by a single electrical conductor which is arranged in the interior of the winding carrier 3 carrying the measuring winding 4, extends from the region of the second winding end 6 to the region of the first winding end 5 and the second winding end 6 in the region of the first End of winding 5 leads back.
Damit sind nun zwei, normal zu den Windungen 7 der Meßwicklung 4 verlaufende Windungen vorhanden, einerseits die von der Gesamtheit der Windungen 7 der Meßwicklung 4 gebildete Windung und andererseits die eingeführte Gegenwindung 8. Da diese Windungen koplanar liegen, werden sie beide von den Stör-Magnetfeldern durchsetzt und werden dadurch in ihnen Stör-Spannungen gleicher Höhe induziert. Diese Stör-Spannungen sind aber gegeneinander geschaltet, sodaß sie sich gegenseitig aufheben und ein von Stör- Magnetfeldern unbeeinflußtes Meßergebnis erhalten werden kann.There are now two windings running normal to the windings 7 of the measuring winding 4, on the one hand the winding formed by the total number of windings 7 of the measuring winding 4 and on the other hand the introduced counter-winding 8. Since these windings are coplanar, they are both disturbed by the Magnetic fields penetrated and thereby induced interference voltages of the same level. However, these interference voltages are connected to one another, so that they cancel each other out and a measurement result unaffected by interference magnetic fields can be obtained.
Die vorliegende Erfindung bezieht sich auf die konstruktive Ausführung eines Wickelkörpers, mit welchem der Wicklungsträger 3 einer Rogowsky-Spule mit Gegenwindung 8 gebildet werden kann.The present invention relates to the design of a winding body with which the winding carrier 3 of a Rogowsky coil with a counter-winding 8 can be formed.
In der Regel wird lediglich ein einziger Wickelkörper vorgesehen, der als in sich geschlossener Ring ausgebildet ist. In diesem -auch in den Fig.1 und 2 dargestellten Fall- ist der Wickelkörper mit dem Wicklungsträger 3 ident. Denkbar ist aber auch, den Wicklungsträger 3 aus mehreren einzelnen Wickelkörpern 3 ' zusammenzusetzen, welche einzelnen Wicklungskörper 3' jeweils nur Segmente eines ringförmigen Körpers sind (vgl.As a rule, only a single winding body is provided, which is designed as a self-contained ring. In this case, also shown in FIGS. 1 and 2, the winding body is identical to the winding carrier 3. However, it is also conceivable to assemble the winding carrier 3 from a plurality of individual winding bodies 3 ' , which individual winding body 3 ' are only segments of an annular body (cf.
Fig.3).Figure 3).
Die vorliegende Erfindung bezieht sich also auf einen Wickelkörper, der vorzugsweise als in sich geschlossener Ring ausgebildet ist aber auch nur ein Segment eines solchen Ringes sein kann.The present invention thus relates to a winding body, which is preferably designed as a self-contained ring, but can also be only a segment of such a ring.
Die in dieser Beschreibung und den Ansprüchen verwendeten Begriffe „Ring" undThe terms "ring" and. Used in this description and the claims
„ringförmig" sind in einem weiten Sinn zu verstehen, d.h. es ist nicht notwendig, daß"Ring-shaped" are to be understood in a broad sense, i.e. it is not necessary that
Wicklungsträger 3 bzw. Wickelkörper kreisringförmig sind. Wicklungsträger 3 bzw.Winding carrier 3 or winding body are circular. Winding carrier 3 or
Wickelkörper können im Grundriß gesehen von der Kreisform abweichen, beispielsweise so wie in den beigeschlossenen Zeichnungsfiguren dargestellt, oval sein aber auch kantig, also in Gestalt eines Vieleckes ausgebildet sein.Viewed in plan, the winding body can deviate from the circular shape, for example as shown in the attached drawing figures, be oval but also angular, that is to say in the form of a polygon.
Daneben ist es nicht notwendig, daß Wicklungsträger 3 bzw. Wickelkörper in sich geschlossene Ringkörper sind, es können durchaus von Wickelkörper-Material freigehaltene, sich über den gesamten Querschnitt des Wicklungsträgers 3 bzw. Wickelkörpers erstreckendeIn addition, it is not necessary for winding carriers 3 or winding bodies to be self-contained ring bodies; it may well be that winding body material is kept free and extends over the entire cross section of the winding carrier 3 or winding body
Abschnitte (also Luftspalte) vorgesehen sein.Sections (i.e. air gaps) may be provided.
Der in den Zeichnungsfiguren dargestellte erfindungsgemäße Wickelkörper für eineThe winding body according to the invention shown in the drawing figures for a
Rogowsky-Spule mit Gegenwindung 8 zeichnet sich zunächst dadurch aus, daß er einRogowsky coil with counterwinding 8 is initially characterized in that it is a
Vollkörper ist. Um die Gegenwindung 8 im Inneren dieses Vollkörpers unterzubringen, weist dieser eine Nut 9 auf, in welche besagte Gegenwindung 8 eingelegt werden kann.Is full body. In order to accommodate the counterwinding 8 in the interior of this solid body, it has a groove 9, into which said counterwinding 8 can be inserted.
Die Positionierung dieser Nut 9 ist nicht erfindungswesentlich, sie kann entlang einer beliebigen Linie der Oberfläche des Wickelkörpers verlaufen. Im Ausführungsbeispiel derThe positioning of this groove 9 is not essential to the invention, it can run along any line of the surface of the winding body. In the embodiment of the
Zeichnungen ist die Nut 9 in die äußere Mantelfläche 10 des Wickelkörpers eingearbeitet.Drawings, the groove 9 is incorporated into the outer circumferential surface 10 of the winding body.
Unter „äußerer Mantelfläche 10" ist dabei jene Hälfte der Wickelkörper-Mantelfläche zu verstehen, welche der zentralen Öffnung 11 des Wicklungsträgers 3 abgewandt liegt (vgl.“External outer surface 10” is to be understood as meaning that half of the winding body outer surface which faces away from the central opening 11 of the winding carrier 3 (cf.
Fig.2e). Vorzugsweise wird die Nut 9 auf Höhe der Symmetrieachse 12 angeordnet und verläuft in Richtung dieser Symmetrieachse 12.Figure 2e). The groove 9 is preferably arranged at the level of the axis of symmetry 12 and extends in the direction of this axis of symmetry 12.
Die Tiefe t der Nut 9 beträgt etwa die Hälfte der Dicke d des Wickelkörpers, was aber für die ordnungsgemäße Funktion der Gegenwindung 8 der Rogowsky-Spule nicht wesentlich ist.The depth t of the groove 9 is approximately half the thickness d of the winding body, but this is not essential for the proper functioning of the counterwinding 8 of the Rogowsky coil.
Für die durch die Gegenwindung 8 bewirkte Kompensation von Stör-Magnetfeldeinflüssen auf das Meßergebnis reicht es aus, wenn die Gegenwindung 8 innerhalb der Windungen 7 derFor the compensation of interference magnetic field influences on the measurement result caused by the counterwinding 8, it is sufficient if the counterwinding 8 within the windings 7 of the
Meßwicklung 4 liegt, weshalb die Nut 9 mit beliebiger Tiefe t ausgeführt werden kann.Measuring winding 4 lies, which is why the groove 9 can be made with any depth t.
Das Aufbringen der Gegenwindung 8 und der Meßwicklung 4 auf einen derartigenThe application of the counterwinding 8 and the measuring winding 4 on such
Wickelkörper ist besonders einfach: Zunächst wird die Gegenwindung 8 hergestellt durchWinding body is particularly simple: First, the counterwinding 8 is produced by
Einlegen des ersten Abschnittes des Gegenwindung 8 und Wicklung 4 bildenden Drahtes in die Nut 9. Man beginnt dieses Einlegen beim in Fig.2a eingezeichneten Ende A des Drahtes.Inserting the first section of the wire 8 forming the winding 8 and winding 4 into the slot 9. This insertion begins at the end A of the wire shown in FIG. 2a.
Danach erfolgt die Herstellung der Wicklung 4 beginnend bei ihrem zweiten Ende 6 durchThe winding 4 is then manufactured starting at its second end 6
Umwickeln des Wicklungsträgers 3 mit besagtem Draht, wobei in der ebenfalls in Fig.2a eingezeichneten Wickelrichtung gearbeitet wird. Die Herstellung der Nut 9 kann durch spanabhebende Bearbeitungsverfahren (Drehen, Fräsen) erfolgen; bei Herstellung des erfindungsgemäßen Wickelkörpers durch einen Gußprozeß kann diese Nut 9 auch durch Vorsehen entsprechender Anformungen in der Gußform von Wickelkörper-Material freigehalten werden. Wrapping the winding support 3 with said wire, work being carried out in the winding direction also shown in FIG. 2a. The groove 9 can be produced by machining processes (turning, milling); When the winding body according to the invention is produced by a casting process, this groove 9 can also be kept free of winding body material by providing corresponding moldings in the casting mold.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Wickelkörper für eine Rogowsky-Spule mit Gegenwindung (8), dadurch gekennzeichnet, daß der Wickelkörper ein Vollkörper ist und eine Nut (9) zur Aufnahme der Gegenwindung (8) aufweist.1. winding body for a Rogowsky coil with counterwinding (8), characterized in that the winding body is a solid body and has a groove (9) for receiving the counterwinding (8).
2. Wickelkörper nach Anspruch 1, dadurch gekennzeichnet, daß die Nut (9) in die äußere Mantelfläche (10) des Wickelkörpers eingearbeitet ist.2. winding body according to claim 1, characterized in that the groove (9) in the outer lateral surface (10) of the winding body is incorporated.
3. Wickelkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Tiefe (t) der Nut (9) etwa die Hälfte der Dicke (d) des Wickelkörpers beträgt.3. winding body according to claim 1 or 2, characterized in that the depth (t) of the groove (9) is approximately half the thickness (d) of the winding body.
4. Wickelkörper nach Anspruch 1, dadurch gekennzeichnet, daß der Wickelkörper als in sich geschlossener Ring ausgebildet ist.4. winding body according to claim 1, characterized in that the winding body is designed as a self-contained ring.
5. Rogowsky-Spule umfassend eine auf einen ringförmigen Wicklungsträgers (3) spiralförmig aufgebrachte Wicklung (4) mit einem ersten (5) und einem zweiten Wicklungsende (6), wobei das zweite Wicklungsende (6) mit einer im Inneren des Wicklungsträgers (3) liegenden, sich vom Bereich des zweiten Wicklungsendes (6) bis in den Bereich des ersten Wicklungsendes (5) erstreckenden Gegenwindung (8) verbunden ist, dadurch gekennzeichnet, daß der Wicklungsträger (3) zumindest einen gemäß einem der vorstehenden Ansprüche 1-4 ausgebildeten Wickelkörper umfaßt. 5. Rogowsky coil comprising a winding (4) spirally applied to an annular winding support (3) with a first (5) and a second winding end (6), the second winding end (6) having an inside of the winding support (3) lying, from the area of the second winding end (6) to the area of the first winding end (5) extending counter-winding (8) is connected, characterized in that the winding support (3) at least one formed according to one of the preceding claims 1-4 winding body includes.
PCT/AT2000/000248 1999-09-21 2000-09-20 Package for a rogowsky bobbin having counter winding WO2001022100A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU72603/00A AU7260300A (en) 1999-09-21 2000-09-20 Package for a rogowsky bobbin having counter winding
DE20080180U DE20080180U1 (en) 1999-09-21 2000-09-20 Winding body for a Rogowsky coil with a counter-turn

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM644/99 1999-09-21
AT0064499U AT4109U1 (en) 1999-09-21 1999-09-21 WINDING BODY FOR A ROGOWSKY COIL WITH COUNTERWIND

Publications (1)

Publication Number Publication Date
WO2001022100A1 true WO2001022100A1 (en) 2001-03-29

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PCT/AT2000/000248 WO2001022100A1 (en) 1999-09-21 2000-09-20 Package for a rogowsky bobbin having counter winding

Country Status (4)

Country Link
AT (1) AT4109U1 (en)
AU (1) AU7260300A (en)
DE (1) DE20080180U1 (en)
WO (1) WO2001022100A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199640A1 (en) 2008-12-16 2010-06-23 Meritor Heavy Vehicle Braking Systems (UK) Limited A disc brake
WO2010149331A1 (en) * 2009-06-24 2010-12-29 Abb Research Ltd. Device for measuring electrical current
WO2014127990A1 (en) * 2013-02-25 2014-08-28 Siemens Aktiengesellschaft Inductive current measuring arrangement with capacitive coupling compensation
CN104269260A (en) * 2014-09-19 2015-01-07 浙江天正电气股份有限公司 Microelectronic transformer and preparation method thereof
WO2020015949A1 (en) * 2018-07-20 2020-01-23 Siemens Aktiengesellschaft Arrangement having a spiralled conductor strand, and method for producing such an arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019213152A1 (en) * 2019-08-30 2021-03-04 Siemens Aktiengesellschaft Rogowski transformer

Non-Patent Citations (1)

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Title
MURGATROYD P N ET AL: "MAKING ROGOWSKI COILS", MEASUREMENT SCIENCE AND TECHNOLOGY,GB,IOP PUBLISHING, BRISTOL, VOL. 2, NR. 12, PAGE(S) 1218-1219, ISSN: 0957-0233, XP000275331 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199640A1 (en) 2008-12-16 2010-06-23 Meritor Heavy Vehicle Braking Systems (UK) Limited A disc brake
WO2010149331A1 (en) * 2009-06-24 2010-12-29 Abb Research Ltd. Device for measuring electrical current
WO2014127990A1 (en) * 2013-02-25 2014-08-28 Siemens Aktiengesellschaft Inductive current measuring arrangement with capacitive coupling compensation
CN104269260A (en) * 2014-09-19 2015-01-07 浙江天正电气股份有限公司 Microelectronic transformer and preparation method thereof
WO2020015949A1 (en) * 2018-07-20 2020-01-23 Siemens Aktiengesellschaft Arrangement having a spiralled conductor strand, and method for producing such an arrangement
KR20210031956A (en) * 2018-07-20 2021-03-23 지멘스 에너지 글로벌 게엠베하 운트 코. 카게 Apparatus with spirally wound conductor strands and method for manufacturing such apparatus
US11378596B2 (en) 2018-07-20 2022-07-05 Siemens Energy Global GmbH & Co. KG Arrangement having a spiraled conductor strand, and method for producing such an arrangement
KR102513237B1 (en) * 2018-07-20 2023-03-24 지멘스 에너지 글로벌 게엠베하 운트 코. 카게 Devices having spirally wound conductor strands and methods for making such devices

Also Published As

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DE20080180U1 (en) 2003-01-16
AU7260300A (en) 2001-04-24
AT4109U1 (en) 2001-01-25

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