Method for checking insulative condition of insulated windings used in electrical appliances
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United States of America Patent
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-
Mar 5, 1985
Grant Date -
N/A
app pub date -
Mar 21, 1983
filing date -
Apr 7, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The disclosure describes a method for checking an insulative condition of an insulated winding used in an electrical appliance comprising applying an external mechanical force to said insulated winding to give vibrating frequency to the same for its examination; detecting the frequency behavior to be generated in said insulated winding in the form of electrical signal outputs; and electrically processing the signals for judging deterioration occurred in said insulated winding.
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