EP0762434B1 - Einrichtung zur elektrischen Isolierung - Google Patents
Einrichtung zur elektrischen Isolierung Download PDFInfo
- Publication number
- EP0762434B1 EP0762434B1 EP96113144A EP96113144A EP0762434B1 EP 0762434 B1 EP0762434 B1 EP 0762434B1 EP 96113144 A EP96113144 A EP 96113144A EP 96113144 A EP96113144 A EP 96113144A EP 0762434 B1 EP0762434 B1 EP 0762434B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shielding
- shield
- insulating device
- insulating
- electrically conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/64—Insulating bodies with conductive admixtures, inserts or layers
Definitions
- the above invention relates to a device for electrical insulation consisting of a body insulating material, e.g. Epoxy resin and one Shielding consisting of electrically conductive material and Epoxy resin. It is envisaged that the shielding in the Body of the isolation device is embedded.
- a body insulating material e.g. Epoxy resin
- Shielding consisting of electrically conductive material and Epoxy resin. It is envisaged that the shielding in the Body of the isolation device is embedded.
- Isolators There are already facilities for electrical Insulation, e.g. for isolators on in the field of medium voltage.
- This Isolators have one or more shields that usually from a mesh or grid made of metal consist.
- the known insulators have the disadvantage that the Manufacture from a mesh or grid existing shielding is to be carried out by hand and therefore considerable manufacturing costs arise.
- the known shields can be considerable Dimensional deviations between the body of the insulator and the known shield, consisting of a metal mesh, be determined. Furthermore, the known shields unwanted fraying the Metal network from which the well-known shield consists, what to an undesirable local increase in electrical Field leads.
- the object of the above invention is a device to create electrical insulation which the Disadvantages of the prior art does not have and rational way, advantageously using automatic devices can be mass-produced, to the manufacturing disadvantages, as well as the previously to avoid rejects that have occurred and further improved uniformity from electrical engineering View for the shielding and an insulation device too create one together with the shielding device forms a unified body.
- This task is done by an electrical Isolation device created from a body insulating material such as synthetic resin, and the body receives a shield made of conductive material and characterized in that the shield made of epoxy resin exists, which is enriched with soot particles and the Shielding makes it electrically conductive.
- the shielding in a desired proportion Made way electrically conductive.
- both the insulator and the shield be made using the same resin it is possible to have a uniformly trained To create insulating bodies.
- the insulating body designed according to the invention has furthermore the advantage that the component of the shield can be produced automatically and in series advantageously by a casting / pressing process.
- the shape of the shielding can easily be attached to the predetermined shape of the insulating body or vice versa be adjusted. Furthermore, an undesirable, local Increase in the electric field as so far along the inevitable fraying of a metal mesh existing shielding occurred.
- this used synthetic resin to create the insulating body features similar to the resin composition are used for the electrically conductive shielding will, and because of this, undesirable disconnection avoided between the shield and the insulating body.
- the shield advantageously has a tubular shape Form and consists of a cylindrical body connect to the end parts, which are frustoconical trained collar to form the shield to give sufficient strength and dimensional stability.
- the wall is the Shield along its outer circumferential surface Blind holes provided to ensure an accurate location the shield inside the mold or die for to ensure the manufacture of the insulating body.
- edges and edges of the shield are more advantageous Rounded off to avoid undesirable turbulence and air pockets in the resin flow during to avoid the casting process of the insulating body.
- the insulating body can also have more than one shielding part take in.
- the wall of the shield advantageously faces uniform thickness.
- FIG. 1 and 4 is an isolation device shown, which is generally identified with 1.
- the insulating device 1 consists of an insulating body 2 and an electrically conductive shield 3, which in the Insulator is embedded and shown in dashed lines is.
- the shield 3 which is completely in the insulating body 2 is embedded, points in the example shown tubular shape and consists of a cylindrical part 4 and an end part 5, e.g. Has the shape of a truncated cone.
- the cylindrical component 4 of the shield 3 points in advantageously blind holes on the outer circumference of the Are arranged component; are in the example shown four holes offset by 90 °.
- Figures 2 and 3 show the body of the shield 3, which according to the invention consists of epoxy resin.
- the resin is been enriched with soot.
- the wall of the Shielding 3 advantageously constant thickness having.
- the edges 7 of the shield are in advantageously rounded.
- the shield 3 is produced using a material mixture with the following structure.
- Used material Company name Relative quantities epoxy resin SIR 7120/49 100 Soot CB L6 20 Harder Anidride 70/30 80 reaction accelerators Ammina DM-16D 0.8 Filler and adhesive Quartz M10 270
- the premix of the ingredients is at room temperature made and the mixing takes place in an advantageous manner at a vacuum ( ⁇ 3 mbar) over a period of 10 Minutes and at a temperature of around 70 ° C.
- the structure of the insulating body 2 made of epoxy resin advantageously has the same mixing ratio or a similar composition of the Mix of materials used for the production of the Shield 3 was used.
- the curing time of the material mixture is approximately 20 Minutes at the usual processing temperatures.
- the shield 3 is made separately in a mold which the material mixture with the addition of soot and other components (corresponding to the aforementioned Mixture example).
- the shield 3 which advantageously has a Casting process or a casting / pressing process after the shield has cured) in a known manner in a further known form Manufacture of the final insulating body 2 introduced.
- the finished insulating body 2 takes the shield 3 in its inside.
- the Shield 3 according to the invention which is made of epoxy resin exists, which was enriched with soot, a high Dimensional stability and enables precise location the attachment inside the mold, which then for the production of the actual insulating body 2 Is used.
- the special shape of the shield 3, the Final shape of the insulating body 2 is adapted, allows undesirable turbulence in the material flow of the synthetic resin to avoid during the casting process, whereby especially the formation of small cavities in the Resin mass, which is introduced into the mold, avoided become.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Insulating Bodies (AREA)
- Insulators (AREA)
- Liquid Crystal (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
| Verwendetes Material | Firmenbezeichnung | Relative Mengen |
| Epoxydharz | SIR 7120/49 | 100 |
| Russ | CB L6 | 20 |
| Härter | Anidride 70/30 | 80 |
| Reaktionsbeschleuniger | Ammina DM-16D | 0,8 |
| Füller und Haftmittel | Quarz M10 | 270 |
Claims (8)
- Elektrische Isoliereinrichtung (1) bestehend aus einem Körper (2) aus isolierendem Material, wie Kunstharz, wobei der Körper (2) eine Abschirmung (3) aus elektrisch leitendem Material aufnimmt, dadurch gekennzeichnet, dass die Abschirmung (3) aus Epoxydharz besteht, das mit Russteilchen angereichert ist, und die Abschirmung (3) elektrisch leitend macht.
- Isoliereinrichtung, nach Patentanspruch 1, dadurch gekennzeichnet, dass das Material zur Schaffung des Isolierkörpers (2) und die elektrisch leitende Abschirmung (3) aus Epoxydharz bestehen.
- Isoliereinrichtung, nach Patentanspruch 1, dadurch gekennzeichnet, dass der Abschirmung (3) aus einem zylindrischen Rohrkörper (4) besteht, der Endteile (5) aufweist, die kegelstumpfartig ausgbildet sind.
- Isoliereinrichtung, nach Patentanspruch 1 und 2, dadurch gekennzeichnet, dass die Abschirmung (3) mittels eines Giess/Pressverfahrens hergestellt ist.
- Isoliereinrichtung, nach Patentanspruch 1, dadurch gekennzeichnet, dass der Körper der Abschirmung (3) an seinem Aussenumfang Sacklöcher (6) zum Einsetzen von Positioniermitteln aufweist.
- Isoliereinrichtung, nach Patentanspruch 1, dadurch gekennzeichnet, dass die Kanten oder Ränder (7) der Abschirmung (3) abgerundet ausgebildet sind.
- Isoliereinrichtung, nach Patentanspruch 1, dadurch gekennzeichnet, dass im Körper (2) mehrere Abschirmungen (3) angeordnet sind.
- Isoliereinrichtung, nach Patentanspruch 1, dadurch gekennzeichnet, dass die Wand der Abschirmung (3) konstante Dicke aufweist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI951797 | 1995-08-24 | ||
| IT95MI001797A IT1277490B1 (it) | 1995-08-24 | 1995-08-24 | Mezzo di isolamento elettrico |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0762434A2 EP0762434A2 (de) | 1997-03-12 |
| EP0762434A3 EP0762434A3 (de) | 1998-04-01 |
| EP0762434B1 true EP0762434B1 (de) | 2003-06-04 |
Family
ID=11372188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96113144A Expired - Lifetime EP0762434B1 (de) | 1995-08-24 | 1996-08-16 | Einrichtung zur elektrischen Isolierung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0762434B1 (de) |
| DE (1) | DE59610492D1 (de) |
| ES (1) | ES2200024T3 (de) |
| IT (1) | IT1277490B1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3394455A (en) * | 1967-03-17 | 1968-07-30 | Westinghouse Electric Corp | Method of constructing cast electrical bushings |
| US3600502A (en) * | 1969-11-26 | 1971-08-17 | Westinghouse Electric Corp | Electrical condenser bushing having a plurality of cylindrical, interleaved, ground and tap layers |
| DE3843943A1 (de) * | 1988-12-24 | 1990-06-28 | Asea Brown Boveri | Stromrichtergehaeuse und verfahren zur herstellung von durchfuehrungsanordnungen an diesem gehaeuse |
-
1995
- 1995-08-24 IT IT95MI001797A patent/IT1277490B1/it active IP Right Grant
-
1996
- 1996-08-16 EP EP96113144A patent/EP0762434B1/de not_active Expired - Lifetime
- 1996-08-16 ES ES96113144T patent/ES2200024T3/es not_active Expired - Lifetime
- 1996-08-16 DE DE59610492T patent/DE59610492D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2200024T3 (es) | 2004-03-01 |
| IT1277490B1 (it) | 1997-11-10 |
| ITMI951797A1 (it) | 1997-02-24 |
| EP0762434A2 (de) | 1997-03-12 |
| ITMI951797A0 (it) | 1995-08-24 |
| DE59610492D1 (de) | 2003-07-10 |
| EP0762434A3 (de) | 1998-04-01 |
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