Multi-phase ground fault current sensor system
US6348800B1 · kind B1 · utility
21Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1999 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for detecting ground fault currents in multi-phase power systems. The system and method utilize a gapped core having a central opening. The central opening allows the multiple conductors, e.g. three conductors, to pass therethrough as a group. A sensor, such as a Hall generator, is disposed in the gap of the core and provides an output signal when the current flowing through the multi-phase conductor is unbalanced. The signal output is designed to be proportional to the detected ground fault current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.