Magnetically shielded three-phase rotary transformer
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United States of America Patent
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Mar 28, 2017
Grant Date -
May 21, 2015
app pub date -
May 3, 2013
filing date -
May 10, 2012
priority date (Note) -
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Abstract
A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A. The primary coils include a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the first slot, a third toroidal coil of axis A in the second slot, and a fourth toroidal coil of axis A in the second slot, the second coil and the third coil being connected in series.
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