Electrical system comprising a circuit for detecting an electrical insulation fault
US10391865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to an electrical system comprising: —terminals (V+, V−) capable of being connected to an installed electrical power source (4) capable of delivering an electrical voltage between said terminals; —a circuit for detecting an electrical insulation fault between the electrical power source and a housing (14) forming a floating electrical ground. The detection circuit comprises: •a controllable voltage generator (40) capable of polarizing the housing and the single first terminal at different potentials; •a current measurement device (44) measuring current entering on said first terminal and leaving at a point of the source; •a control unit (46) capable of calculating a value of at least one insulation resistance from said at least one measured current value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.