High voltage transformer having a sensor system, method for monitoring physical characteristic variables of a high voltage transformer and sensor system for monitoring physical characteristic variables
US9484146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Sep 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a high voltage transformer (6) having a sensor system (30) for monitoring physical characteristic variables. In particular, said sensor system has at least one sensor (1) that comprises a glass fiber (3) with a sensor head (2). Said sensor head supports a plurality of Bragg gratings (7, 8, 9). An evaluation unit (10) is associated with the sensor system and is connected to the at least one sensor head via said glass fiber. The invention is based on the general inventive concept of arranging the sensors of the sensor system between successive windings (4, 5) of the high voltage transformer using spacers. In addition, the use of a plurality of Bragg gratings in the sensor head ensures that at least one of the Bragg gratings determines the actual physical characteristic variables such as temperature or contact force (A).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.