Grounded socket and method for insulation fault location in an ungrounded power supply system including insulation monitoring
US11789060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2021 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Jun 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/7175
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A grounded socket and a method for insulation fault location in an ungrounded power supply system including insulation monitoring by a standard insulation monitoring device superimposing a measuring voltage on the ungrounded power supply system for determining an insulation resistance of the ungrounded power supply system. The grounded socket includes a housing having electrical contacts, a signaling device for signaling an insulation state, and a current measuring device for detecting and evaluating a differential current, the current measuring device having a measuring current transformer and evaluating electronics, and the current measuring device being configured for high-resolution detection and evaluation of a measuring current driven by the measuring voltage as a differential measuring current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.