Analysis method for liquid-filled electric equipment
US6691557B1 · kind B1 · utility
8Cited by
34References
13Claims
0Family size
Inventor
Key dates
| Filing date | Oct 10, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Oct 10, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/2858
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to a method for analyzing the maintenance status of liquid-filled electric equipment. An accurate indication of the maintenance state of an electric device and its insulating liquid is obtained using an analysis method comprising a particle analysis of suspended particles and sediment contained in the liquid. The analysis method can further comprise a chemical analysis of the insulating liquid. This analysis results in profiles of the liquid that give an accurate indication of the maintenance state of the electric device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.