Insulating spacer with built-in optical fiber
US8847084B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G5/066
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Insulating spacer 1 has insulating molded member 3 molded as a single body with insulating material such as epoxy resin, in which at least one electric conductor 2, a grounding shield surrounding the electric conductor(s), and Optical fiber 14 of Faraday-effect element are embedded to form a build-in configuration. The grounding shield can be formed of cylindrical shielding member 15 made of metal wires, metal strips, or a cylindrical metallic member having a perforation of a plurality of small holes thereon. The aforementioned optical fiber 14, which is to be used as a component of an optical current transformer, is put in a certain place in cylindrical shielding member 15.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.