Electrical network configured to magnetically couple to a winding and to control magnetic saturation in a magnetic core
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United States of America Patent
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Jan 12, 2021
Grant Date -
N/A
app pub date -
Aug 5, 2019
filing date -
Aug 20, 2018
priority date (Note) -
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Abstract
An apparatus for a load tap changer includes a first primary winding electrically connected to a first contact, the first contact configured to connect to one of a plurality of taps in a load tap changer; a second contact, the second contact configured to connect to one of the plurality of taps in the load tap changer; a magnetic core; and a control circuit including: a secondary winding configured to magnetically couple to the first primary winding and the magnetic core; and an electrical network electrically connected to the secondary winding, the electrical network being configured to prevent magnetic saturation of the magnetic core during switching of the first or second contact.
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