Variable ratio transformer and static balance compensator
US4445082A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1980 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Sep 19, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2029/143
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Variable ratio transformer constructed around a control transformer comprising: two closed magnetic circuits each constructed around a ferromagnetic core. An alternating current magnetic field circulates in the first core and a direct current magnetic field circulates in the second core. The two circuits are located so as to define at least two common magnetic spaces in which the fields are superposed orthogonally. Around the first core is wound a primary winding, a secondary winding and, for a specific application in a three-phase circuit, a tertiary winding. A conventional transformer can be associated with the control transformer to reduce the load supported by the control transformer. The variable ratio transformer according to the invention can be used as a static balance compensator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.