EP2524382B1 - Insulation of an electrical component - Google Patents

Insulation of an electrical component Download PDF

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Publication number
EP2524382B1
EP2524382B1 EP10704114.7A EP10704114A EP2524382B1 EP 2524382 B1 EP2524382 B1 EP 2524382B1 EP 10704114 A EP10704114 A EP 10704114A EP 2524382 B1 EP2524382 B1 EP 2524382B1
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EP
European Patent Office
Prior art keywords
electrical component
insulating material
sound source
sound waves
liquid
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EP10704114.7A
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German (de)
French (fr)
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EP2524382A1 (en
Inventor
Michael Rösner
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Siemens AG
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Siemens AG
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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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/321—Insulating of coils, windings, or parts thereof using a fluid for insulating purposes only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/12—Insulating of windings
    • H01F41/127—Encapsulating or impregnating

Definitions

  • the invention relates to a method for insulating an electrical component having the features according to the preamble of patent claim 1.
  • the inventor has found that in a method for insulating an electrical component in which a liquid insulating material is introduced into the electrical component, the electrical component after filling the liquid insulating material is not immediately ready for use, but usually a certain waiting time must be awaited before the electrical component can be put into operation and / or tested. This waiting time is needed to achieve the required for isolation of the electrical component distribution of the liquid insulating material.
  • the invention has for its object to provide a method for isolating an electrical component, which can be carried out particularly quickly and easily.
  • the invention provides that after or during the filling of the liquid insulating material in the electrical component sound waves are generated, wherein the electrical component is insulated with liquid and solid insulating material and the sound waves, the penetration of the liquid insulating material is supported in capillary cavities of the solid insulating material , The sound waves thus accelerate the impregnation of the solid insulating material with liquid insulating material.
  • a significant advantage of the method according to the invention is that the electrical component can be put into operation and / or tested faster than with previous isolation methods. This is due to the fact that the sound waves support the penetration of the liquid insulating material into cavities within the electrical component and thereby the necessary for a later operation of the electrical component Isolierstoffveredia is achieved faster than in previous insulation.
  • the sound waves can in principle have any frequencies or arbitrary frequency bands;
  • the sound waves may therefore be, for example, in the infrasonic range, in the audible range, in the ultrasonic range and / or in the hypersonic range.
  • a particularly rapid distribution of the liquid insulating material within the electrical component is achieved with ultrasonic waves, so that the use of ultrasonic waves is considered to be particularly preferred.
  • infrasonic waves sound waves with frequencies that are below the audible for human frequency range of 20 Hz
  • ultrasonic waves are understood as sound waves in a frequency range between 20 kHz and one GHz
  • hypersonic waves are understood to be sound waves with frequencies above one GHz.
  • the sound waves can be generated, for example, within the electrical component.
  • a generation of sound waves within the electrical component can be carried out in a particularly simple and therefore advantageous manner if, for this purpose, a sound source integrated within the electrical component is used, that is to say a sound source which forms a component of the electrical component.
  • sound waves can be generated with a sound source located outside the electrical component and fed from the outside into the electrical component.
  • the sound source can for example be coupled directly to the electrical component by the sound source being placed, for example, on a housing wall of the electrical component.
  • indirect coupling between the electrical component and the sound source may be accomplished by coupling the sound source to the electrical component via a transmission medium, such as a solid, liquid or gas, and transmitting the sound waves through the transmission medium from the sound source to the sound source electrical component are routed.
  • the liquid insulating material can be permanently liquid or harden after filling in the electrical component, so even form a solid insulating material.
  • the described method can be used to isolate, for example, transformers, in particular power transformers, as electrical components.
  • a transformer is insulated as an electrical component, it is considered advantageous if - during or after the filling of the liquid insulating material - an electrical alternating voltage is applied to one or more windings of the transformer, thereby exciting the windings to oscillate and the sound waves inside of the transformer are generated.
  • the invention also relates to an electrical component with insulation comprising liquid insulating material.
  • the electrical component has at least one sound source for generating sound waves.
  • the sound source is preferably disposed within the electrical component, for example, on or in an insulating material containing the liquid insulating material container of the electrical component.
  • a significant advantage of such an electrical component is that, due to the sound source contained therein, isolation of the electrical component with liquid insulating material can be facilitated by generating sound waves with or after filling the liquid insulating material with the sound source, which produces a distribution of the liquid insulating material supported in cavities.
  • the electrical component can be formed, for example, by a transformer or at least also comprise a transformer.
  • the invention also relates to an arrangement with an electrical component with liquid insulating material.
  • the arrangement comprises a sound source for generating sound waves and the sound source is arranged outside the electrical component such that sound waves generated by it are fed into the interior of the electrical component.
  • the sound source may be directly attached to the electrical component and coupled directly to it; Alternatively, the sound source may also be spaced apart from the electrical component and indirectly coupled to it only by means of a transmission medium.
  • FIG. 1 One recognizes an arrangement 10 with an electrical component in the form of a transformer 20 and an external sound source 30. It can be seen that the external sound source 30 is directly attached to a housing wall 40 of the transformer 20. The sound waves S generated by the external sound source 30 are thus transmitted directly to the housing wall 40.
  • FIG. 1 can be seen beyond an insulating container 50 of the transformer 20, for example in the form of a boiler, are arranged in the insulating material 60 and 70 made of a solid insulating material.
  • the insulating container 50 is moreover, filled with a liquid insulating material 80, which comes into direct contact with the Isolierstoffelementen 60 and 70 in contact.
  • FIG. 1 can also be seen that the Isolierstoffiata 60 and 70 and the Isolierstoffmaschine 60 and 70 forming insulating material 100 capillary cavities 110, into which the liquid insulating material 80 can penetrate.
  • the Isolierstoffmaschine 60 and 70 and the liquid insulating material 80 it is advantageous if all the capillary cavities 110, at least the majority of the capillary cavities 110 are filled with the liquid insulating material 80. Since the penetration of the liquid insulating material 80 in the capillary cavities 110 requires a certain amount of time, the transformer 20 can not be put into operation directly after filling the insulating container 50 with the liquid insulating material 80, but it is necessary to wait until the capillary cavities 110 are filled are.
  • sound waves S are generated with the external sound source 30 and fed via the housing wall 40 into the insulating container 50 and into the liquid insulating material 80. Due to the sound wave excitation of the liquid insulating material 80 can penetrate faster than usual in the capillary cavities 110 and fill them. By feeding the sound waves S so the waiting time, which is required after filling the liquid insulating material 80, significantly reduced.
  • FIG. 2 shows a further embodiment of an arrangement 10 with a transformer 20 and an external sound source 30.
  • the external sound source 30 is not directly connected to the transformer 20 or to the housing wall 40 of the transformer 20; Rather, there is a distance between the transformer 20 and the external sound source 30, which is designated by the reference numeral A.
  • a transmission medium 130 which transmits the sound waves S generated by the external sound source 30 to the housing wall 40 and to the transformer 20 so that the sound waves S in the insulating 50 and thus can penetrate into the liquid insulating material 80.
  • FIG. 3 shows an embodiment of an electrical component in the form of a transformer 20 with a sound source 140 integrated therein. It can be seen that the integrated sound source 140 is attached directly to a side wall 150 of the insulating 50 and thus can radiate sound waves S directly into the insulating 50 ,
  • FIG. 4 shows a further embodiment of an electrical component in the form of a transformer 20 with a sound source 140 integrated therein.
  • the sound source 140 is not on the side wall 150 of the insulating container 50, but attached to Isolier periodser convinced 160 of Isolier periodsers 50.
  • the feeding of sound waves S takes place in this embodiment, therefore, not from the side, but from below or from Isolier electerteil 160.
  • the embodiment corresponds to FIG. 4 the embodiment according to FIG. 3 ,

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Testing Relating To Insulation (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zum Isolieren einer elektrischen Komponente mit den Merkmalen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for insulating an electrical component having the features according to the preamble of patent claim 1.

Beispielsweise aus der europäischen Offenlegungsschrift EP 1 950 560 A1 ist es bekannt, als Isoliermittel für Leistungstransformatoren eine Kombination aus einem flüssigen und einem festen Isolierstoff einzusetzen.For example, from the European patent application EP 1 950 560 A1 It is known to use as insulation for power transformers a combination of a liquid and a solid insulating material.

Erfinderseitig wurde festgestellt, dass bei einem Verfahren zum Isolieren einer elektrischen Komponente, bei dem ein flüssiger Isolierstoff in die elektrische Komponente eingefüllt wird, die elektrische Komponente nach dem Einfüllen des flüssigen Isolierstoffs nicht unmittelbar einsatzbereit ist, sondern in der Regel eine gewisse Wartezeit abgewartet werden muss, bevor die elektrische Komponente in Betrieb genommen und/oder geprüft werden kann. Diese Wartezeit wird benötigt, um die für eine Isolation der elektrischen Komponente erforderliche Verteilung des flüssigen Isolierstoffs zu erreichen.The inventor has found that in a method for insulating an electrical component in which a liquid insulating material is introduced into the electrical component, the electrical component after filling the liquid insulating material is not immediately ready for use, but usually a certain waiting time must be awaited before the electrical component can be put into operation and / or tested. This waiting time is needed to achieve the required for isolation of the electrical component distribution of the liquid insulating material.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Isolieren einer elektrischen Komponente anzugeben, das sich besonders schnell und einfach durchführen lässt.The invention has for its object to provide a method for isolating an electrical component, which can be carried out particularly quickly and easily.

Diese Aufgabe wird erfindungsgemäß durch ein Verfahren mit den Merkmalen gemäß Patentanspruch 1 gelöst. Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens sind in Unteransprüchen angegeben.This object is achieved by a method having the features according to claim 1. Advantageous embodiments of the method according to the invention are specified in subclaims.

Danach ist erfindungsgemäß vorgesehen, dass nach oder während des Einfüllens des flüssigen Isolierstoffs in die elektrische Komponente Schallwellen erzeugt werden, wobei die elektrische Komponente mit flüssigem und festem Isolierstoff isoliert wird und mit den Schallwellen das Eindringen des flüssigen Isolierstoffs in kapillare Hohlräume des festen Isolierstoffs unterstützt wird. Durch die Schallwellen wird somit das Durchtränken des festen Isolierstoffs mit flüssigem Isolierstoff beschleunigt.Thereafter, the invention provides that after or during the filling of the liquid insulating material in the electrical component sound waves are generated, wherein the electrical component is insulated with liquid and solid insulating material and the sound waves, the penetration of the liquid insulating material is supported in capillary cavities of the solid insulating material , The sound waves thus accelerate the impregnation of the solid insulating material with liquid insulating material.

Ein wesentlicher Vorteil des erfindungsgemäßen Verfahrens besteht darin, dass die elektrische Komponente schneller als bei bisherigen Isolationsverfahren in Betrieb genommen und/oder geprüft werden kann. Dies ist darauf zurückzuführen, dass die Schallwellen das Eindringen des flüssigen Isolierstoffs in Hohlräume innerhalb der elektrischen Komponente unterstützen und dadurch die für einen späteren Betrieb der elektrischen Komponente notwendige Isolierstoffverteilung schneller als bei bisherigen Isolierverfahren erreicht wird.A significant advantage of the method according to the invention is that the electrical component can be put into operation and / or tested faster than with previous isolation methods. This is due to the fact that the sound waves support the penetration of the liquid insulating material into cavities within the electrical component and thereby the necessary for a later operation of the electrical component Isolierstoffverteilung is achieved faster than in previous insulation.

Die Schallwellen können prinzipiell beliebige Frequenzen bzw. beliebige Frequenzbänder aufweisen; die Schallwellen können also beispielsweise im Infraschallbereich, im hörbaren Bereich, im Ultraschallbereich und/oder im Hyperschallbereich liegen. Eine besonders schnelle Verteilung des flüssigen Isolierstoffs innerhalb der elektrischen Komponente wird jedoch mit Ultraschallwellen erreicht, so dass der Einsatz von Ultraschallwellen als besonders bevorzugt angesehen wird.The sound waves can in principle have any frequencies or arbitrary frequency bands; The sound waves may therefore be, for example, in the infrasonic range, in the audible range, in the ultrasonic range and / or in the hypersonic range. However, a particularly rapid distribution of the liquid insulating material within the electrical component is achieved with ultrasonic waves, so that the use of ultrasonic waves is considered to be particularly preferred.

Unter Infraschallwellen werden Schallwellen mit Frequenzen verstanden, die unterhalb des für Menschen hörbaren Frequenzbereichs von 20 Hz liegen, unter Ultraschallwellen werden Schallwellen verstanden, die in einem Frequenzbereich zwischen 20 kHz und einem GHz liegen, und unter Hyperschallwellen werden Schallwellen mit Frequenzen oberhalb von einem GHz verstanden.By infrasonic waves are meant sound waves with frequencies that are below the audible for human frequency range of 20 Hz, ultrasonic waves are understood as sound waves in a frequency range between 20 kHz and one GHz, and hypersonic waves are understood to be sound waves with frequencies above one GHz.

Die Schallwellen können beispielsweise innerhalb der elektrischen Komponente erzeugt werden. Ein Erzeugen von Schallwellen innerhalb der elektrischen Komponente lässt sich besonders einfach und damit vorteilhaft durchführen, wenn hierzu eine innerhalb der elektrischen Komponente integrierte Schallquelle eingesetzt wird, also eine Schallquelle, die einen Bestandteil der elektrischen Komponente bildet.The sound waves can be generated, for example, within the electrical component. A generation of sound waves within the electrical component can be carried out in a particularly simple and therefore advantageous manner if, for this purpose, a sound source integrated within the electrical component is used, that is to say a sound source which forms a component of the electrical component.

Alternativ oder zusätzlich können Schallwellen mit einer außerhalb der elektrischen Komponente befindlichen Schallquelle erzeugt und von außen in die elektrische Komponente eingespeist werden. Die Schallquelle kann hierzu beispielsweise unmittelbar mit der elektrischen Komponente gekoppelt werden, indem die Schallquelle beispielsweise auf eine Gehäusewand der elektrischen Komponente aufgesetzt wird. Alternativ kann auch eine mittelbare Kopplung zwischen der elektrischen Komponente und der Schallquelle erfolgen, indem die Schallquelle über ein Übertragungsmedium, wie beispielsweise einem Festkörper, einer Flüssigkeit oder einem Gas, mit der elektrischen Komponente gekoppelt wird und die Schallwellen über das Übertragungsmedium von der Schallquelle zu der elektrischen Komponente geleitet werden.Alternatively or additionally, sound waves can be generated with a sound source located outside the electrical component and fed from the outside into the electrical component. For this purpose, the sound source can for example be coupled directly to the electrical component by the sound source being placed, for example, on a housing wall of the electrical component. Alternatively, indirect coupling between the electrical component and the sound source may be accomplished by coupling the sound source to the electrical component via a transmission medium, such as a solid, liquid or gas, and transmitting the sound waves through the transmission medium from the sound source to the sound source electrical component are routed.

Der flüssige Isolierstoff kann dauerhaft flüssig sein oder nach dem Einfüllen in die elektrische Komponente aushärten, also selbst einen festen Isolierstoff bilden.The liquid insulating material can be permanently liquid or harden after filling in the electrical component, so even form a solid insulating material.

Mit dem beschriebenen Verfahren können als elektrische Komponenten beispielsweise Transformatoren, insbesondere Leistungstransformatoren, isoliert werden.The described method can be used to isolate, for example, transformers, in particular power transformers, as electrical components.

Wird als elektrische Komponente ein Transformator isoliert, so wird es als vorteilhaft angesehen, wenn - während oder nach dem Einfüllen des flüssigen Isolierstoffs - an eine oder mehrere Wicklungen des Transformators eine elektrische Wechselspannung angelegt wird und dadurch die Wicklungen zum Schwingen angeregt und die Schallwellen im Inneren des Transformators erzeugt werden.If a transformer is insulated as an electrical component, it is considered advantageous if - during or after the filling of the liquid insulating material - an electrical alternating voltage is applied to one or more windings of the transformer, thereby exciting the windings to oscillate and the sound waves inside of the transformer are generated.

Die Erfindung bezieht sich darüber hinaus auf eine elektrische Komponente mit einer Isolierung, die flüssigen Isolierstoff aufweist.The invention also relates to an electrical component with insulation comprising liquid insulating material.

Dabei ist vorgesehen, dass die elektrische Komponente zumindest eine Schallquelle zum Erzeugen von Schallwellen aufweist.It is provided that the electrical component has at least one sound source for generating sound waves.

Die Schallquelle ist vorzugsweise innerhalb der elektrischen Komponente angeordnet, beispielsweise an oder in einem den flüssigen Isolierstoff enthaltenden Isolierstoffbehälter der elektrischen Komponente.The sound source is preferably disposed within the electrical component, for example, on or in an insulating material containing the liquid insulating material container of the electrical component.

Ein wesentlicher Vorteil einer solchen elektrischen Komponente besteht darin, dass aufgrund der darin enthaltenen Schallquelle ein Isolieren der elektrischen Komponente mit flüssigem Isolierstoff vereinfacht werden kann, indem mit der Schallquelle nach oder während des Einfüllens des flüssigen Isolierstoffs Schallwellen erzeugt werden, die eine Verteilung des flüssigen Isolierstoffs in Hohlräumen unterstützt.A significant advantage of such an electrical component is that, due to the sound source contained therein, isolation of the electrical component with liquid insulating material can be facilitated by generating sound waves with or after filling the liquid insulating material with the sound source, which produces a distribution of the liquid insulating material supported in cavities.

Die elektrische Komponente kann beispielsweise durch einen Transformator gebildet sein oder einen Transformator zumindest auch umfassen.The electrical component can be formed, for example, by a transformer or at least also comprise a transformer.

Die Erfindung bezieht sich darüber hinaus auf eine Anordnung mit einer elektrischen Komponente mit flüssigem Isolierstoff.The invention also relates to an arrangement with an electrical component with liquid insulating material.

Dabei ist vorgesehen, dass die Anordnung eine Schallquelle zum Erzeugen von Schallwellen umfasst und die Schallquelle außerhalb der elektrischen Komponente derart angeordnet ist, dass von ihr erzeugte Schallwellen in das Innere der elektrischen Komponente eingespeist werden.It is provided that the arrangement comprises a sound source for generating sound waves and the sound source is arranged outside the electrical component such that sound waves generated by it are fed into the interior of the electrical component.

Die Schallquelle kann unmittelbar an der elektrischen Komponente angebracht und unmittelbar mit dieser gekoppelt sein; alternativ kann die Schallquelle auch zu der elektrischen Komponente beabstandet und nur mittels eines Übertragungsmediums mit dieser mittelbar gekoppelt sein.The sound source may be directly attached to the electrical component and coupled directly to it; Alternatively, the sound source may also be spaced apart from the electrical component and indirectly coupled to it only by means of a transmission medium.

Bezüglich der Vorteile dieser Anordnung sei auf die obigen Ausführungen im Zusammenhang mit dem erfindungsgemäßen Verfahren und der erfindungsgemäßen elektrischen Komponente verwiesen, da die Vorteile der Anordnung denen des erfindungsgemäßen Verfahrens und denen der elektrischen Komponente im Wesentlichen entsprechen.With regard to the advantages of this arrangement, reference is made to the above statements in connection with the method according to the invention and the electrical component according to the invention, since the advantages of the arrangement essentially correspond to those of the method according to the invention and those of the electrical component.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert; dabei zeigen beispielhaft:

Figur 1
ein Ausführungsbeispiel für eine Anordnung mit einer elektrischen Komponente mit flüssigem Isolierstoff, wobei eine Schallquelle unmittelbar mit der elektrischen Komponente gekoppelt ist, anhand der Anordnung wird auch das erfindungsgemäße Verfahren beispielhaft erläutert,
Figur 2
ein Ausführungsbeispiel für eine erfindungsgemäße Anordnung, bei der eine Schallquelle mittelbar mit einer elektrischen Komponente gekoppelt ist,
Figur 3
ein Ausführungsbeispiel für eine elektrische Komponente mit einer darin integrierten Schallquelle und
Figur 4
ein weiteres Ausführungsbeispiel für eine erfindungsgemäße elektrische Komponente mit integrierter Schallquelle.
The invention will be explained in more detail with reference to embodiments; thereby show exemplarily:
FIG. 1
an embodiment of an arrangement with an electrical component with liquid insulating material, wherein a sound source directly is coupled with the electrical component, based on the arrangement and the inventive method is exemplified,
FIG. 2
An embodiment of an inventive arrangement in which a sound source is indirectly coupled to an electrical component,
FIG. 3
an embodiment of an electrical component with a sound source integrated therein and
FIG. 4
a further embodiment of an inventive electrical component with integrated sound source.

In den Figuren werden der Übersicht halber für identische oder vergleichbare Komponenten stets dieselben Bezugszeichen verwendet.For the sake of clarity, the same reference numbers are always used in the figures for identical or comparable components.

In der Figur 1 erkennt man eine Anordnung 10 mit einer elektrischen Komponente in Form eines Transformators 20 sowie einer externen Schallquelle 30. Es lässt sich erkennen, dass die externe Schallquelle 30 an einer Gehäusewand 40 des Transformators 20 unmittelbar angebracht ist. Die von der externen Schallquelle 30 erzeugten Schallwellen S werden somit unmittelbar auf die Gehäusewand 40 übertragen.In the FIG. 1 One recognizes an arrangement 10 with an electrical component in the form of a transformer 20 and an external sound source 30. It can be seen that the external sound source 30 is directly attached to a housing wall 40 of the transformer 20. The sound waves S generated by the external sound source 30 are thus transmitted directly to the housing wall 40.

In der Figur 1 erkennt man darüber hinaus einen Isolierbehälter 50 des Transformators 20, beispielsweise in Form eines Kessels, in dem Isolierstoffelemente 60 und 70 aus einem festen Isolierstoff angeordnet sind. Der Isolierbehälter 50 ist darüber hinaus mit einem flüssigen Isolierstoff 80 gefüllt, der unmittelbar mit den Isolierstoffelementen 60 und 70 in Kontakt tritt.In the FIG. 1 can be seen beyond an insulating container 50 of the transformer 20, for example in the form of a boiler, are arranged in the insulating material 60 and 70 made of a solid insulating material. The insulating container 50 is moreover, filled with a liquid insulating material 80, which comes into direct contact with the Isolierstoffelementen 60 and 70 in contact.

In der Figur 1 lässt sich außerdem erkennen, dass die Isolierstoffelemente 60 und 70 bzw. ein die Isolierstoffelemente 60 und 70 bildender Isolierstoff 100 kapillare Hohlräume 110 aufweist, in die der flüssige Isolierstoff 80 eindringen kann. Um eine gute elektrische Isolation durch die Isolierstoffelemente 60 und 70 sowie den flüssigen Isolierstoff 80 zu erreichen, ist es vorteilhaft, wenn alle kapillaren Hohlräume 110, zumindest die Mehrzahl der kapillaren Hohlräume 110, mit dem flüssigen Isolierstoff 80 gefüllt sind. Da das Eindringen des flüssigen Isolierstoffs 80 in die kapillaren Hohlräume 110 eine gewisse Zeit benötigt, kann der Transformator 20 nach einem Befüllen des Isolierbehälters 50 mit dem flüssigen Isolierstoff 80 nicht unmittelbar in Betrieb genommen werden, vielmehr muss abgewartet werden, bis die kapillaren Hohlräume 110 gefüllt sind.In the FIG. 1 can also be seen that the Isolierstoffelemente 60 and 70 and the Isolierstoffelemente 60 and 70 forming insulating material 100 capillary cavities 110, into which the liquid insulating material 80 can penetrate. In order to achieve a good electrical insulation by the Isolierstoffelemente 60 and 70 and the liquid insulating material 80, it is advantageous if all the capillary cavities 110, at least the majority of the capillary cavities 110 are filled with the liquid insulating material 80. Since the penetration of the liquid insulating material 80 in the capillary cavities 110 requires a certain amount of time, the transformer 20 can not be put into operation directly after filling the insulating container 50 with the liquid insulating material 80, but it is necessary to wait until the capillary cavities 110 are filled are.

Um das Eindringen des flüssigen Isolierstoffs 80 in die kapillaren Hohlräume 110 zu beschleunigen bzw. zu unterstützen, werden mit der externen Schallquelle 30 Schallwellen S, vorzugsweise Ultraschallwellen, erzeugt und diese über die Gehäusewand 40 in den Isolierbehälter 50 sowie in den flüssigen Isolierstoff 80 eingespeist. Durch die Schallwellenanregung kann der flüssige Isolierstoff 80 schneller als sonst in die kapillaren Hohlräume 110 eindringen und diese füllen. Durch das Einspeisen der Schallwellen S wird also die Wartezeit, die nach einem Einfüllen des flüssigen Isolierstoffs 80 erforderlich ist, deutlich reduziert.In order to accelerate or support the penetration of the liquid insulating material 80 into the capillary cavities 110, sound waves S, preferably ultrasonic waves, are generated with the external sound source 30 and fed via the housing wall 40 into the insulating container 50 and into the liquid insulating material 80. Due to the sound wave excitation of the liquid insulating material 80 can penetrate faster than usual in the capillary cavities 110 and fill them. By feeding the sound waves S so the waiting time, which is required after filling the liquid insulating material 80, significantly reduced.

Die Figur 2 zeigt ein weiteres Ausführungsbeispiel für eine Anordnung 10 mit einem Transformator 20 sowie einer externen Schallquelle 30. Im Unterschied zu der Anordnung gemäß der Figur 1 ist die externe Schallquelle 30 nicht unmittelbar mit dem Transformator 20 bzw. mit der Gehäusewand 40 des Transformators 20 verbunden; vielmehr besteht zwischen dem Transformator 20 und der externen Schallquelle 30 ein Abstand, der mit dem Bezugszeichen A bezeichnet ist. In den Zwischenraum zwischen der externen Schallquelle 30 und dem Transformator 20 befindet sich ein Übertragungsmedium 130, das die von der externen Schallquelle 30 erzeugten Schallwellen S zu der Gehäusewand 40 bzw. zu dem Transformator 20 überträgt, damit die Schallwellen S in den Isolierbehälter 50 und somit in den flüssigen Isolierstoff 80 eindringen können.The FIG. 2 shows a further embodiment of an arrangement 10 with a transformer 20 and an external sound source 30. In contrast to the arrangement according to the FIG. 1 the external sound source 30 is not directly connected to the transformer 20 or to the housing wall 40 of the transformer 20; Rather, there is a distance between the transformer 20 and the external sound source 30, which is designated by the reference numeral A. In the space between the external sound source 30 and the transformer 20 is a transmission medium 130, which transmits the sound waves S generated by the external sound source 30 to the housing wall 40 and to the transformer 20 so that the sound waves S in the insulating 50 and thus can penetrate into the liquid insulating material 80.

Durch das Eindringen der Schallwellen S in den flüssigen Isolierstoff 80 wird das Auffüllen der kapillaren Hohlräume 110 in den Isolierstoffelementen 60 und 70 - wie oben bereits ausführlich beschrieben - unterstützt bzw. beschleunigt.As a result of the penetration of the sound waves S into the liquid insulating material 80, the filling of the capillary cavities 110 in the insulating elements 60 and 70 is supported or accelerated, as already described in detail above.

Die Figur 3 zeigt ein Ausführungsbeispiel für eine elektrische Komponente in Form eines Transformators 20 mit einer darin integrierten Schallquelle 140. Es lässt sich erkennen, dass die integrierte Schallquelle 140 unmittelbar an einer Seitenwand 150 des Isolierbehälters 50 angebracht ist und somit Schallwellen S unmittelbar in den Isolierbehälter 50 einstrahlen kann.The FIG. 3 shows an embodiment of an electrical component in the form of a transformer 20 with a sound source 140 integrated therein. It can be seen that the integrated sound source 140 is attached directly to a side wall 150 of the insulating 50 and thus can radiate sound waves S directly into the insulating 50 ,

In der Figur 4 ist ein weiteres Ausführungsbeispiel für eine elektrische Komponente in Form eines Transformators 20 mit einer darin integrierten Schallquelle 140 gezeigt. Im Unterschied zu dem Ausführungsbeispiel gemäß Figur 3 ist die Schallquelle 140 nicht an der Seitenwand 150 des Isolierbehälters 50, sondern am Isolierbehälterboden 160 des Isolierbehälters 50 angebracht. Das Einspeisen von Schallwellen S erfolgt bei diesem Ausführungsbeispiel also nicht von der Seite, sondern von unten bzw. vom Isolierbehälterboden 160. Im Übrigen entspricht das Ausführungsbeispiel gemäß Figur 4 dem Ausführungsbeispiel gemäß Figur 3.In the FIG. 4 shows a further embodiment of an electrical component in the form of a transformer 20 with a sound source 140 integrated therein. In contrast to the embodiment according to FIG. 3 the sound source 140 is not on the side wall 150 of the insulating container 50, but attached to Isolierbehälterboden 160 of Isolierbehälters 50. The feeding of sound waves S takes place in this embodiment, therefore, not from the side, but from below or from Isolierbehälterboden 160. Incidentally, the embodiment corresponds to FIG. 4 the embodiment according to FIG. 3 ,

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Anordnungarrangement
2020
Transformatortransformer
3030
Schallquellesound source
4040
Gehäusewandhousing wall
5050
IsolierbehälterInsulated
6060
IsolierstoffelementInsulating
7070
IsolierstoffelementInsulating
8080
flüssiger Isolierstoffliquid insulating material
100100
Isolierstoffinsulator
110110
Hohlraumcavity
130130
Übertragungsmediumtransmission medium
140140
Schallquellesound source
150150
SeitenwandSide wall
160160
IsolierbehälterbodenIsolierbehälterboden
AA
Abstanddistance
SS
Schallwellensound waves

Claims (5)

  1. Method for insulating an electrical component (20), wherein an insulating material (80) that is liquid at least during pouring is poured into the electrical component, sound waves (S) being generated after or during the pouring of the liquid insulating material,
    characterized in that
    the electrical component is insulated with liquid and solid insulating material (80, 100) and the penetration of the liquid insulating material into capillary cavities (110) of the solid insulating material (100) is assisted by the sound waves.
  2. Method according to claim 1,
    characterized in that
    ultrasonic waves are generated as sound waves.
  3. Method according to one of the preceding claims,
    characterized in that
    the sound waves are generated by a sound source (30) located outside the electrical component and are fed into the electrical component from the outside.
  4. Method according to one of the preceding claims,
    characterized in that
    the sound waves are generated by a sound source (140) located inside the electrical component.
  5. Method according to one of the preceding claims,
    characterized in that
    a transformer (20) is insulated as the electrical component.
EP10704114.7A 2010-01-15 2010-01-15 Insulation of an electrical component Not-in-force EP2524382B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/050447 WO2011085818A1 (en) 2010-01-15 2010-01-15 Insulation of an electrical component

Publications (2)

Publication Number Publication Date
EP2524382A1 EP2524382A1 (en) 2012-11-21
EP2524382B1 true EP2524382B1 (en) 2014-03-05

Family

ID=42753263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10704114.7A Not-in-force EP2524382B1 (en) 2010-01-15 2010-01-15 Insulation of an electrical component

Country Status (2)

Country Link
EP (1) EP2524382B1 (en)
WO (1) WO2011085818A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296003A (en) * 1980-06-27 1981-10-20 Electric Power Research Institute, Inc. Atomized dielectric fluid composition with high electrical strength
EP1950560B1 (en) 2007-01-23 2010-11-17 EMH Energie-Messtechnik GmbH Method for the quantitative analysis of gases in a transformer oil

Also Published As

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WO2011085818A1 (en) 2011-07-21
EP2524382A1 (en) 2012-11-21

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