Sensor assembly and method for determining the hydrogen and moisture content of transformer oil
US9234834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Dec 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7783
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor assembly senses hydrogen and moisture content of insulation liquid of a liquid-filled electrical equipment. The sensor assembly includes a radiation source for emitting electromagnetic radiation, a water detection section for receiving a water-containing component of the liquid when the assembly is in operational connection with the electrical equipment and for being illuminated by electromagnetic radiation from the radiation source, a first detector for detecting electromagnetic radiation from the water detection section at a wavelength indicative of an amount of water present at the water detection section, a hydrogen detection section for receiving a hydrogen-containing component of the liquid when the assembly is in operational connection with the electrical equipment and for being illuminated by electromagnetic radiation from the radiation source, and a second detector for detecting electromagnetic radiation from the hydrogen detection section at a wavelength indicative of an amount of hydrogen present at the hydrogen detection section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.