Voltage measuring device
US9810728B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 28, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for measuring the voltage of at least one conductor (121, 122, 123) of an electrical power cable (10) comprise providing a container (22) made from a conductive material around a portion of the cable and at least one electric field sensor (301, 302, 303, 304) between the container and the cable and bringing the container to a constant potential and measuring the electric field with a sensor. The voltage is determined by comparing the measured electric field with electric fields simulated for a plurality of configurations of punctual electric charges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.