Power distribution systems and means for control thereof
US4700123A · kind A · utility
13Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1985 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Sep 17, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/142
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a power distribution system, power line insulators have three electrodes, two of which are connected to the line and to ground, and the third of which forms a capacitively stepped down voltage corresponding to the line voltage, and use sensing coils to measure current. The sensing coils are inversely connected and differentially located to suppress noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.