Electrical transmission or interconnection systems – Plural load circuit systems – Transformer connections
Reexamination Certificate
2008-04-29
2008-04-29
Sherry, Michael (Department: 2836)
Electrical transmission or interconnection systems
Plural load circuit systems
Transformer connections
C307S082000, C307S083000, C361S035000, C361S036000, C361S038000, C361S067000, C323S271000, C323S272000, C323S275000, C323S276000, C363S025000, C363S039000
Reexamination Certificate
active
10544126
ABSTRACT:
A power converter that can continue to operate after suffering a partial failure. The power converter includes multiple array transformers; normally-on switches connected respectively in series with the ends of each of the primary windings of the array transformers; normally-off current bypass devices connected in parallel with the series connections of the primary windings of the array transformers and the switches at the transformer ends; AC-DC converter units having AC sides respectively connected secondary windings of the array transformers; and mutually independent DC circuits respectively connected to DC sides of the AC-DC converter units. By turning on the current bypass device of the primary winding of a specified array transformer and turning off the switches at the ends of that primary winding, it is possible to isolate the specified array transformer and the AC-DC converter unit connected to it.
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Kaplan Hal I
Leydig , Voit & Mayer, Ltd.
Mitsubishi Denki & Kabushiki Kaisha
Sherry Michael
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