Perchloroethylene dielectric fluid containing pyrrole and phenol
US4293433A · kind A · utility
8Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1980 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Jun 2, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B3/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrical devices such as transformers and power capacitors are improved by the use of a dielectric fluid prepared by combining perchloroethylene having a low chlorinated ethane content with an antioxidant. This fluid has excellent resistance to decomposition over long periods of time and under severe operational conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.