Ground fault detection device
US7944213B2 · kind B2 · utility
1Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Nov 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device and method to determine the presence of a ground fault that distinguishes between the capacitive portion of the currents to ground, and the resistive portion of the currents to ground by ascertaining aspects of the voltage and residual current waveforms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.