Fault detector
US4881028A · kind A · utility
228Cited by
6References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jun 13, 1988 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Jun 13, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A new type of immersible fault detector which includes a magnetic coupling link that can be coupled to a power line and a detector receives energy proportional to the load currents flowing in the power line and energizes a light source. A fiber-optics light waveguide or cable is connected to the detector so as to detect the light generated by the detector and has its opposite connected to an indicator which is remote from the detector and is electrically insulated therefrom so that the condition of the power line can be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.