Device for monitoring dissolved gases in electrical insulating liquids such as transformer oils
US4236404A · kind A · utility
35Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1976 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Aug 31, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2841
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device to monitor dissolved gases in electrical insulating liquids such as transformer oils. The monitoring device includes a sampling means to obtain a liquid sample from the electrical device whose liquid is being monitored, a gas extraction means to extract the dissolved gases from the liquid sample, an injection means to inject the extracted gases into a gas chromatograph, and a gas chromatograph to analyze the dissolved gases to determine the concentration of various dissolved gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.