Method for encapsulating field windings of rotary electric machines
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United States of America Patent
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Sep 7, 1999
Issued Date -
N/A
app pub date -
Dec 16, 1997
filing date -
Mar 11, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
It is generally known that the most common reason for replacing rotary electric machines is failure of field windings. Vibrations and primary overheating of field windings is the main reason for motor and generator repair. Consequently field windings have been fan cooled, externally ventilated, and totally enclosed. To solve this failure problem stators have been completely encapsulated, drip coated, and entirely coated. But all of these procedures are subject to certain disadvantages. The method and means herein overcome such disadvantages. Means are provided for embedding in a solid material field windings of stators of rotary electric machines in order to insulate and cool electric machines in which the stators are employed.
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