Transformer core having charge dissipation facility
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United States of America Patent
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-
Oct 23, 1984
Issued Date -
N/A
app pub date -
Jan 6, 1982
filing date -
Mar 19, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Transformer cores are made electrically conductive during impulse voltage condition when a certain voltage is attained by a coating of semiconductor material applied to the edges or surface of the core laminations. Under ordinary operating conditions the semiconductor material provides a high resistance path to charges in the core. Upon the occurrence of a high voltage impulse, the semiconductor material rapidly equalizes the charges in the laminations and so avoids the danger of breakdown of the insulating coatings between individual laminations.
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