Capacitor with ester dielectric fluid
US4259708A · kind A · utility
16Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1978 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Dec 19, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/221
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A capacitor is disclosed of alternating layers of plastic film and metal foil impregnated with a dielectric fluid which is an ester of a benzene tri- or tetracarboxylic acid. The esters are preferably trimellitic acid esters, especially tri-isodecyl-trimellitate. The dielectric fluid is sufficiently non-flammable to meet safety requirements and has a relatively high dielectric constant and low power factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.