Controlled ferroresonant transformer
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United States of America Patent
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Mar 23, 1999
Grant Date -
N/A
app pub date -
Aug 20, 1997
filing date -
Aug 20, 1997
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Abstract
A ferroresonant transformer includes a three-legged magnetic core. The core includes a center leg, and first and second flanking legs. Each of the center and flanking legs have respective first and second longitudinal ends. The first flanking leg is positioned at an opposite side of the center leg relative to the second flanking leg. A first end-connecting portion magnetically couples the first ends of the center and flanking legs, and a second end-connecting portion magnetically couples the second ends of the center and flanking legs. The center leg defines a substantially non-magnetic space, such as an air gap, along a magnetic flux path extending along the center leg from the first end-connecting portion to the second end-connecting portion in order to reduce the total harmonic distortion of the ferroresonant transformer.
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