DE10110062A1 - Production of electrical insulation in high voltage device, e.g. transformer, comprises filling space between device components with granular solid insulator, and filling spaces between with gaseous or liquid insulator - Google Patents
Production of electrical insulation in high voltage device, e.g. transformer, comprises filling space between device components with granular solid insulator, and filling spaces between with gaseous or liquid insulatorInfo
- Publication number
- DE10110062A1 DE10110062A1 DE2001110062 DE10110062A DE10110062A1 DE 10110062 A1 DE10110062 A1 DE 10110062A1 DE 2001110062 DE2001110062 DE 2001110062 DE 10110062 A DE10110062 A DE 10110062A DE 10110062 A1 DE10110062 A1 DE 10110062A1
- Authority
- DE
- Germany
- Prior art keywords
- insulator
- gaseous
- liquid
- electrical insulation
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 239000012212 insulator Substances 0.000 title claims abstract description 14
- 239000007787 solid Substances 0.000 title claims abstract description 13
- 238000010292 electrical insulation Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims abstract description 4
- 229920000426 Microplastic Polymers 0.000 claims abstract description 3
- 239000000919 ceramic Substances 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920000570 polyether Polymers 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims abstract description 3
- 239000004576 sand Substances 0.000 claims abstract description 3
- 229910018503 SF6 Inorganic materials 0.000 claims abstract 2
- 150000002895 organic esters Chemical class 0.000 claims abstract 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract 2
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer elektrischen Isola tion in einem Hochspannungsgerät, wobei ein zwischen Gerätekomponenten vor handenes Volumen mit einem elektrischen Isoliermittel ausgefüllt wird.The invention relates to a method for producing an electrical isola tion in a high-voltage device, with one between device components before existing volume is filled with an electrical insulation.
Typische Hochspannungsgeräte, in denen solche elektrischen Isolierungen verwen det werden, sind Transformatoren, Geräte der Leistungselektronik und unterschiedli che Geräte der Hochspannungstechnik.Typical high voltage devices using such electrical insulation det are transformers, devices of power electronics and different high-voltage technology devices.
Es ist bekannt, für solche Isolierzwecke ein Isoliergas, eine Isolierflüssigkeit, oder einen festen Isolierstoff, auch weich oder hart aushärtende Vergußmaterialien zu verwenden.It is known for such insulating purposes an insulating gas, an insulating liquid, or a solid insulating material, also soft or hard-curing potting materials use.
Nachteile einer Gas-Isolation sind oftmals zu geringe dielektrische Festigkeit, die er höhten Dichtigkeitsanforderungen an Gehäuse bei Schutzgas, der Verlust der ge samten Isolationsfähigkeit bei Leckage, und schlechte Umweltverträglichkeit bei Schutzgas.Disadvantages of gas insulation are often insufficient dielectric strength, which he high tightness requirements for housing with protective gas, the loss of ge entire insulation ability in the event of leakage, and poor environmental compatibility Protective gas.
Nachteile einer Flüssigkeits-Isolation sind in der Regel schlechte Umweltverträglich keit, erhöhte Dichtigkeitsanforderungen an Gehäuse, und Verlust der gesamten Iso lationsfähigkeit bei Leckage. Umweltfreundliche Isolationsflüssigkeiten sind sehr ko stenintensiv, außerdem muß die thermische Ausdehnung der Flüssigkeit durch Aus gleichsvolumen kompensiert werden, die Kosten verursachen. Disadvantages of liquid insulation are usually poor environmental compatibility ability, increased tightness requirements for the housing, and loss of the entire insulation Ability to leak leakage. Environmentally friendly insulation fluids are very expensive intensely, in addition, the thermal expansion of the liquid must equal volume can be compensated, which cause costs.
Die Verwendung einer Feststoff-Isolation bedeutet, daß z. B. bei Elektronikbaugrup pen praktisch keine Reparaturfähigkeit gegeben ist, und die Stoffe nur eine mäßige Wärmeleitfähigkeit haben. Unterschiedliche Wärmeausdehnungskoeffizienten von Isoliermaterial und Gerätekomponenten führen zu einer Isolationsablösung und damit zur Teilentladung. Es kann hoher mechanischer Stress entstehen, wodurch speziell bei Transformatorverguß die Gefahr eines Kernbruchs besteht.The use of solid insulation means that e.g. B. at electronics assembly There is practically no repairability, and the materials are only moderate Have thermal conductivity. Different coefficients of thermal expansion of Insulation material and device components lead to insulation separation and thus for partial discharge. It can create high mechanical stress, which makes it special there is a risk of core breakage if the transformer is potted.
Der Erfindung liegt davon ausgehend die Aufgabe zugrunde, ein Verfahren zur Her stellung einer elektrischen Isolierung anzugeben, mit dem die vorgenannten Nach teile vermieden, und insbesondere die einzusetzenden Mengen an teueren und/oder umweltschädlichen flüssigen oder gasförmigen Isolierstoffen reduziert werden.Proceeding from this, the invention is based on the object of a method for producing position to provide electrical insulation with which the aforementioned After parts avoided, and in particular the amounts of expensive and / or environmentally harmful liquid or gaseous insulating materials can be reduced.
Diese Aufgabe wird durch ein Verfahren zur Herstellung einer elektrischen Isolation in einem Hochspannungsgerät gelöst, das die im Anspruch 1 angegebenen Merk male aufweist. Vorteilhafte Ausgestaltungen sind in weiteren Ansprüchen angege ben.This task is accomplished by a method of manufacturing electrical insulation solved in a high voltage device that the specified in claim 1 Merk male has. Advantageous refinements are specified in further claims ben.
Mit der Erfindung wird demnach im wesentlichen vorgeschlagen, das zu isolierende Volumen zunächst durch einen kornförmigen und festen Isolierstoff aufzufüllen, und das verbleibende vergleichsweise geringe Volumen anschließend durch einen flüssi gen oder gasförmigen Isolierstoff auszufüllen. Es können dabei Stoffe mit vorteilhaf ten Eigenschaften, insbesondere kostengünstige und umweltneutrale Stoffe, und mit für den jeweiligen Einsatzzweck geeigneten physikalischen Eigenschaften gewählt werden.The invention therefore essentially proposes that to be isolated First fill the volume with a granular and solid insulating material, and the remaining comparatively small volume is then replaced by a liquid or gaseous insulating material. It can substances with advantageous properties, especially inexpensive and environmentally neutral substances, and with suitable physical properties selected for the respective application become.
Besondere Vorteile sind dadurch gegeben, daß nur geringe Mengen an flüssigem oder gasförmigem Isolierstoff erforderlich sind. Bei Gehäuseleckagen ist die mögli cherweise austretende Menge an flüssigem Isolierstoff durch die Bindewirkung des kornförmigen Feststoffes äußerst gering. Volumenausgleich ist kaum oder nicht er forderlich, da geeignete Feststoffe einen deutlich geringeren Wärmeausdehnungs koeffizienten als geeignete Flüssigkeiten besitzen. Es bestehen gute Möglichkeiten zur Reparatur bzw. Fehler-/Ausfalldiagnose. Particular advantages are given by the fact that only small amounts of liquid or gaseous insulating material are required. In case of housing leakage, this is possible Leaking amount of liquid insulating material due to the binding effect of the granular solid extremely low. Volume compensation is hardly or not at all required because suitable solids have a significantly lower thermal expansion have coefficients as suitable liquids. There are good options for repair or fault / failure diagnosis.
Bei gasförmiger Isolierstoffkomponente lassen sich die dielektrischen Eigenschaften noch verbessern, indem ein Gasdruck erzeugt und gehalten wird. Dabei ist die unter Druck gespeicherte Energie gering, da das Gasvolumen gering ist, wodurch das Ex plosionsrisiko im Vergleich zu konventioneller Gas-Isolierung vermindert ist.The dielectric properties of gaseous insulating material components can be improve even more by generating and maintaining gas pressure. The is below Pressure stored energy is low because the gas volume is small, which means that the Ex risk of explosion is reduced compared to conventional gas insulation.
Eine weitere Beschreibung der Erfindung und deren Vorteile erfolgt nachstehend an hand eines in der Zeichnungsfigur 1 dargestellten Ausführungsbeispiels.A further description of the invention and its advantages follows below hand of an embodiment shown in the drawing figure 1.
Fig. 1 zeigt in einer Prinzipdarstellung einen Schnitt durch einen Hochspannungs- Transformator. Dabei ist innerhalb eines Gehäuses 1 ein Transformatorkern 4 ange ordnet, wobei ein Schnitt durch zwei Schenkel des Kerns 4 zu erkennen ist. Der Kern 4 ist von einer Primärwicklung 3 umgeben, diese wiederum beabstandet von einer Sekundärwicklung 2. Zur Herstellung einer elektrischen Isolation ist das zwischen diesen Gerätekomponenten 1, 2, 3, 4 bestehende Volumen 5 mit einem Isoliermittel 6 ausgefüllt. Dazu ist zunächst durch einen ersten Herstellschritt ein kornförmiger Feststoff-Isolator 7 eingefüllt, der beispielsweise Sand (SiO2), Kunststoffgranulat, Aluminiumoxidpulver, Keramikgranulat, oder Glas, vorzugsweise kugelförmigem Glas, sein kann. Die geeignete Korngröße kann empirisch ermittelt werden, kann beispielsweise abhängig von den geometrischen Verhältnissen, also angepaßt an die Größe von Abständen zwischen Komponenten gewählt werden. Durch einen zweiten Schritt ist z. B. eine Isolier-Flüssigkeit 8 eingefüllt, die das geringe Restvolumen zwi schen den Feststoff-Körnern 7 ausfüllt. Dafür sind z. B. Isolieröle geeignet, syntheti sche organische Ester, oder halogenierte Polyether. Fig. 1 shows a schematic diagram of a section through a high-voltage transformer. Here, a transformer core 4 is arranged within a housing 1 , a section through two legs of the core 4 being recognizable. The core 4 is surrounded by a primary winding 3 , which in turn is spaced apart from a secondary winding 2 . In order to produce electrical insulation, the volume 5 existing between these device components 1 , 2 , 3 , 4 is filled with an insulating agent 6 . For this purpose, a granular solid insulator 7 is first filled through a first manufacturing step, which can be, for example, sand (SiO 2 ), plastic granules, aluminum oxide powder, ceramic granules, or glass, preferably spherical glass. The suitable grain size can be determined empirically, for example depending on the geometric conditions, that is to say adapted to the size of the distances between components. By a second step z. B. filled an insulating liquid 8 , which fills the small residual volume between the solid grains 7 . For this, e.g. B. insulating oils suitable, synthetic cal esters, or halogenated polyethers.
Anstelle einer Flüssigkeit kann auch ein Gas, z. B. SF6-Gas eingefüllt werden, auch unter Druck. Auch Luft kann als Isoliermittel-Komponente geeignet sein.Instead of a liquid, a gas, e.g. B. SF 6 gas can be filled, even under pressure. Air can also be suitable as an insulating component.
Claims (5)
- a) in einem ersten Schritt das Volumen (5) mit einem kornförmigen Feststoff-Isolator (7) ausgefüllt wird, und,
- b) in einem zweiten Schritt das dabei zwischen den Körnern des Feststoff-Isolators (7) verbleibende Volumen mit einem gasförmigen oder flüssigen Isolator (8) ge füllt wird.
- a) in a first step the volume ( 5 ) is filled with a granular solid insulator ( 7 ), and,
- b) in a second step, the volume remaining between the grains of the solid insulator ( 7 ) is filled with a gaseous or liquid insulator ( 8 ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001110062 DE10110062A1 (en) | 2001-03-02 | 2001-03-02 | Production of electrical insulation in high voltage device, e.g. transformer, comprises filling space between device components with granular solid insulator, and filling spaces between with gaseous or liquid insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2001110062 DE10110062A1 (en) | 2001-03-02 | 2001-03-02 | Production of electrical insulation in high voltage device, e.g. transformer, comprises filling space between device components with granular solid insulator, and filling spaces between with gaseous or liquid insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10110062A1 true DE10110062A1 (en) | 2002-09-05 |
Family
ID=7676063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2001110062 Withdrawn DE10110062A1 (en) | 2001-03-02 | 2001-03-02 | Production of electrical insulation in high voltage device, e.g. transformer, comprises filling space between device components with granular solid insulator, and filling spaces between with gaseous or liquid insulator |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10110062A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT515697B1 (en) * | 2014-07-14 | 2015-11-15 | Josef Mikl | GROUND CABLE |
| EP3544032A1 (en) * | 2018-03-19 | 2019-09-25 | ABB Schweiz AG | Electrical device with gel composite insulation |
| US20220319770A1 (en) * | 2019-07-12 | 2022-10-06 | Siemens Energy Global GmbH & Co. KG | Instrument transformer and method to isolate parts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE432810C (en) * | 1924-07-03 | 1926-08-11 | Koch & Sterzel A G | Electrical apparatus based on induction effects, in particular current transformers, with the induction coils embedded in solid mineral insulating material |
| GB328656A (en) * | 1927-12-13 | 1930-05-01 | Condit Electrical Mfg Corp | Improvements in or relating to electric high tension systems |
| US4118861A (en) * | 1976-02-06 | 1978-10-10 | The United States Of America As Represented By The Secretary Of The Army | Removable encapsulant for protection of electronic equipment |
| DE2740255A1 (en) * | 1977-09-07 | 1979-03-15 | Standard Elektrik Lorenz Ag | Mfr. of electric parts sealed into casting resin filled with sand - by charging matrix and filler separately to the mould to stabilise viscosity and prevent cavity formation |
| DE3843807A1 (en) * | 1988-12-24 | 1990-07-12 | Lahmeyer Ag Fuer Energiewirtsc | Self-cooled high-voltage transformer |
| DE4336749A1 (en) * | 1993-10-28 | 1995-05-04 | Draegerwerk Ag | Potting compound for an electrical assembly |
-
2001
- 2001-03-02 DE DE2001110062 patent/DE10110062A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE432810C (en) * | 1924-07-03 | 1926-08-11 | Koch & Sterzel A G | Electrical apparatus based on induction effects, in particular current transformers, with the induction coils embedded in solid mineral insulating material |
| GB328656A (en) * | 1927-12-13 | 1930-05-01 | Condit Electrical Mfg Corp | Improvements in or relating to electric high tension systems |
| US4118861A (en) * | 1976-02-06 | 1978-10-10 | The United States Of America As Represented By The Secretary Of The Army | Removable encapsulant for protection of electronic equipment |
| DE2740255A1 (en) * | 1977-09-07 | 1979-03-15 | Standard Elektrik Lorenz Ag | Mfr. of electric parts sealed into casting resin filled with sand - by charging matrix and filler separately to the mould to stabilise viscosity and prevent cavity formation |
| DE3843807A1 (en) * | 1988-12-24 | 1990-07-12 | Lahmeyer Ag Fuer Energiewirtsc | Self-cooled high-voltage transformer |
| DE3843807C2 (en) * | 1988-12-24 | 1990-10-11 | Lahmeyer Ag Fuer Energiewirtschaft, 6000 Frankfurt, De | |
| DE4336749A1 (en) * | 1993-10-28 | 1995-05-04 | Draegerwerk Ag | Potting compound for an electrical assembly |
Non-Patent Citations (1)
| Title |
|---|
| OBURGER,W.: Die Isolierstoffe der Elektrotech- nik. Springer Verlag, Wien,1957,5.Aufl.,S.141- S.162 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT515697B1 (en) * | 2014-07-14 | 2015-11-15 | Josef Mikl | GROUND CABLE |
| AT515697A4 (en) * | 2014-07-14 | 2015-11-15 | Josef Mikl | GROUND CABLE |
| EP3544032A1 (en) * | 2018-03-19 | 2019-09-25 | ABB Schweiz AG | Electrical device with gel composite insulation |
| US20220319770A1 (en) * | 2019-07-12 | 2022-10-06 | Siemens Energy Global GmbH & Co. KG | Instrument transformer and method to isolate parts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3230091C2 (en) | ||
| CH698970A1 (en) | High-voltage transducer with flexible insulation. | |
| DE102009014334B4 (en) | Power connection device for containers | |
| WO2018046208A1 (en) | Transformer for high-voltage direct-current transmission | |
| EP2319057B1 (en) | High-voltage transformer | |
| DE10110062A1 (en) | Production of electrical insulation in high voltage device, e.g. transformer, comprises filling space between device components with granular solid insulator, and filling spaces between with gaseous or liquid insulator | |
| CH698971A1 (en) | Isolation device. | |
| DE3309658C2 (en) | ||
| EP2923423A1 (en) | Fluid-tight line feedthrough | |
| EP0653767B1 (en) | Transformer for medium voltage | |
| DE102017215460A1 (en) | Arrangement for connection to a high-voltage network with adjustable impedance | |
| DE3512657C2 (en) | ||
| DE2624325A1 (en) | Through bushing joining ducts with dissimilar dielectrics - are contoured to give constant electric stress on both sides | |
| DE10117846C1 (en) | Electric component in the form of a compact transformer/fluorescent lamp ballast in a kettle-like casing has a liquid cooling mechanism for a coil and a magnetic core. | |
| EP0585650B1 (en) | Transducer and its application | |
| EP0167641B1 (en) | Method of constructing a vacuum tight and oil-tight seal for a transformer structure, and seal made in this way | |
| EP3876371B1 (en) | End closure for high voltage cable | |
| DE1490919C3 (en) | Arrangement for capacitive voltage tapping in a high-voltage bushing | |
| DE102006014695A1 (en) | Grouting body manufacturing method for use in e.g. discharge lamp, involves forming buffer area for comparing occurred volume changes in preset position of grouting body, and inserting molded part into grouting area | |
| AT79271B (en) | Bushing insulator for high voltage. | |
| AT206984B (en) | High-voltage insulation with cast resin | |
| DE2524217C3 (en) | High voltage bushing | |
| DE202020005966U1 (en) | High voltage insulator with geometric invar stabilizer | |
| DE19504857C2 (en) | Gas permeable high voltage insulation | |
| AT206516B (en) | Oil-filled high-voltage transformer, transducer or the like. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |