Electrical machine coil insulation system and method
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United States of America Patent
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May 7, 2024
Grant Date -
Aug 29, 2013
app pub date -
Feb 22, 2013
filing date -
Feb 24, 2012
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Abstract
An insulation system and method are disclosed for insulating formed coils of electrical machines, such as motors and generators. The system includes strand/turn insulation that may include one or more layers of different materials, depending upon the dielectric requirements. A ground wall insulation is applied over the group of turns. The coil may be sized in a slot cell section. Additional insulation layers are provided, including a slot corona suppression insulation that extends just beyond stator slots, a voltage grading layer, and an armor layer. The resulting system is highly adaptable to different machine designs and ratings, and affords superior resistance to degradation.
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