Magnetically shielded three-phase rotary transformer
US9607758B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F30/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A. The primary coils include a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the first slot, a third toroidal coil of axis A in the second slot, and a fourth toroidal coil of axis A in the second slot, the second coil and the third coil being connected in series.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.