Transformer-rectifier apparatus
US4255784A · kind A · utility
38Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1979 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Nov 8, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/1552
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-phase transformer having a delta-connected primary and two identical secondary windings per phase connected in hexagon, has symmetrical taps on each secondary winding connected to rectifying devices for generating DC energy from a first group of six symmetrical AC voltages at 60.degree. with respect to the virtual neutral for one polarity and from a second group of six symmetrical AC voltages at 60.degree. with respect to the virtual neutral for the other polarity, the first and second groups being at 30.degree. phase shift to one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.