Method of encapsulating motor windings of electrical submersible pump in bonded ceramic
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United States of America Patent
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Sep 15, 2020
Grant Date -
Sep 13, 2018
app pub date -
May 9, 2018
filing date -
Mar 31, 2015
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Abstract
An electrical submersible pump assembly has a motor with a stator stack of limitations. The stack has slots through which magnet wires are wound. An encapsulate surrounds and bonds the magnet wires together within each slot. The encapsulate includes ceramic particles within a polymer adhesive matrix. The polymer matrix may be a fluoropolymer adhesive. Each of the magnet wires may have an electrical insulation layer surrounding a copper core. The ceramic particles are rounded and much smaller than a cross-sectional area of each of the magnet wires. At least some of the magnet wires may be in contact with a perimeter of the slot. The ceramic particles may be porous.
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