GB1361079A - Capacitors - Google Patents
CapacitorsInfo
- Publication number
- GB1361079A GB1361079A GB4911671A GB4911671A GB1361079A GB 1361079 A GB1361079 A GB 1361079A GB 4911671 A GB4911671 A GB 4911671A GB 4911671 A GB4911671 A GB 4911671A GB 1361079 A GB1361079 A GB 1361079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- projections
- film
- oil
- oct
- height
- 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
Links
Classifications
-
- 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
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/28—Capacitor type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
Abstract
1361079 Capacitors IMPERIAL CHEMICAL INDUSTRIES Ltd 10 Oct 1972 [22 Oct 1971] 49116/71 Heading H1M In a capacitor at least one electrode comprises a metallized thermoplastic film having a multiplicity of projections on at least one surface and extending beyond the surface to a height such that the metallized film has a dynamic coefficient of friction as measured by the moving sledge method not exceeding 0.7. The height of the projections may be 1 to 10 microns. The projections may be formed by embossing or, in the case of a heat-set film, by selective heat-shrinking. As shown the projections comprise parallel flutes or ridges 25, 26. They may alternatively be hemispherical (Fig. 3, not shown). The film is preferably biaxially oriented polypropylene, but may be polycarbonate, polyamide, polyester or polyolefin. The electrode may be Al, Zn, Ag, Au, Ni vapour deposited after the projections have been formed. A wound capacitor may be impregnated with liquids such as mineral oil, castor oil, cottonseed oil, silicone oil and polybutene, or gases such as nitrogen or sulphur hexafluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4911671A GB1361079A (en) | 1972-10-10 | 1972-10-10 | Capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4911671A GB1361079A (en) | 1972-10-10 | 1972-10-10 | Capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1361079A true GB1361079A (en) | 1974-07-24 |
Family
ID=10451202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4911671A Expired GB1361079A (en) | 1972-10-10 | 1972-10-10 | Capacitors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1361079A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001810A1 (en) * | 1980-01-18 | 1981-07-23 | Siemens AG, 1000 Berlin und 8000 München | FILM-INSULATED HIGH VOLTAGE TRANSMISSION WITH POTENTIAL CONTROL INSERTS |
| EP1405719A1 (en) * | 2002-10-02 | 2004-04-07 | Lifescan, Inc. | Scratch-resistant metal films and metallized surfaces and methods of fabricating them |
| ES2546686A1 (en) * | 2015-03-26 | 2015-09-25 | Rtr Energia, S.L. | Three-phase cylindrical condenser connected in triangle (Machine-translation by Google Translate, not legally binding) |
-
1972
- 1972-10-10 GB GB4911671A patent/GB1361079A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3001810A1 (en) * | 1980-01-18 | 1981-07-23 | Siemens AG, 1000 Berlin und 8000 München | FILM-INSULATED HIGH VOLTAGE TRANSMISSION WITH POTENTIAL CONTROL INSERTS |
| US4387266A (en) * | 1980-01-18 | 1983-06-07 | Siemens Aktiengesellschaft | Foil-insulated high voltage bushing with embossed potential control inserts |
| EP1405719A1 (en) * | 2002-10-02 | 2004-04-07 | Lifescan, Inc. | Scratch-resistant metal films and metallized surfaces and methods of fabricating them |
| ES2546686A1 (en) * | 2015-03-26 | 2015-09-25 | Rtr Energia, S.L. | Three-phase cylindrical condenser connected in triangle (Machine-translation by Google Translate, not legally binding) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |