Electricity: power supply or regulation systems – Including a transformer or an inductor – Polyphase or plural transformers
Reexamination Certificate
2006-09-05
2006-09-05
Nguyen, Matthew V. (Department: 2838)
Electricity: power supply or regulation systems
Including a transformer or an inductor
Polyphase or plural transformers
C363S171000
Reexamination Certificate
active
07102343
ABSTRACT:
Disclosed are methods, systems, and devices that include a power source having a first voltage having a first frequency, a power-consuming load(s), and a first transformer set comprising a delta-delta transformer and a first voltage controller coupled in series thereto, an input coupled to the power source, producing as output a second voltage having a second frequency and coupled to the power-consuming load(s). Also, a second transformer set has a wye-delta transformer, and a second voltage controller coupled in series thereto, an input is coupled to the power source, producing a phase-shifted third voltage output at a third frequency that is coupled to the power-consuming load(s). The first and second transformer sets are coupled in a parallel configuration such that the second and third voltage signals combine to produce a fourth voltage signal having a fourth frequency.
REFERENCES:
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Foley & Hoag LLP
Invensys Systems Inc.
Nguyen Matthew V.
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