Hybrid tap-changing transformer with full range of control and high resolution
US6472851B2 · kind B2 · utility
13Cited by
25References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Jul 2, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/147
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A hybrid tap-changer for delivering AC power to a load in which a high-power tap-changing transformer with full range of adjustment but limited resolution is combined with a low-power electronic converter of limited range but high resolution to provide a tap-changing transformer with high resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.