Electric motors with neutral voltage sensing
US11342875B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | May 10, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2221/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical machine includes a with a parallel first and second phase windings. A first neutral bus is connected to the first phase winding and a second neutral bus is connected to the second phase winding. A first voltage sensor is coupled to the first neutral bus and a second voltage sensor coupled to the second phase winding for monitoring current imbalance between the first and second phase windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.