Optical sensor arrangement for electrical switchgear
US7723977B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 15, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor configuration contains an optical current sensor and/or an optical voltage sensor. The sensor configuration further contains a first and a second hollow member, preferably ring shaped profiles, which are together disposed to form a hollow section. The sensor configuration further includes an optical fiber of the current sensor disposed in an annular groove, the groove being disposed at the boundary surface between the first hollow member and the second hollow member, and/or an optical fiber of the voltage sensor is disposed in a recess of the second hollow member. The first hollow member has an annular recess into which the second hollow member is disposed whereas the first hollow member is an L-shaped or U-shaped ring with two legs and the recess is formed between the two legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.