Ester dielectric fluid containing tert-butyl anthraquinone
US4121275A · kind A · utility
10Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Jun 27, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ester dielectric fluid for an AC capacitor with improved corona properties contains a minor amount of tert-butylanthraquinone. The ester may be 2-ethylhexylphthalate or diisononylphthalate, and an epoxide stabilizer is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.