Power distribution transformer for non-linear loads
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United States of America Patent
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May 16, 1995
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N/A
app pub date -
Apr 25, 1991
filing date -
Apr 25, 1991
priority date (Note) -
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Abstract
An electrical power distribution transformer of the delta/wye configuration wherein the wye secondary windings are connected in a zigzag configuration and distributed among the legs of a multi-legged transformer core to achieve substantial attenuation of flux produced by undesired triplen harmonic (third and its multiples) currents arising from non-linear loads. The transformer also achieves a substantial reduction in capacitive coupling between the primary and secondary winding by means of an electrostatic shield positioned between the primary and secondary windings and by means of a metallic ground plane positioned as a barrier between the primary and secondary terminals.
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