Systems and methods for electrical leakage detection and compensation
US7626396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2006 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jul 21, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/007
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and methods are disclosed for compensating electrical leakage and detecting balanced electrical leakage for a machine hosting an HV system. In one embodiment, a fault detection and compensation system includes a DC power supply electrically referenced to a machine frame, a leakage correction switch connected to the machine frame, a current source controlled by the leakage correction switch, and a voltage measuring device that measures an offset voltage reflecting whether the HV system is in an unbalanced fault condition. The fault detection and compensation system further includes a leakage detection and compensation controller that compensates for the unbalanced fault condition by controlling the leakage correction switch and the current source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.