Temperature-Aging Tests on Class-A-Insulated Fractional-Horsepower Motor Stators

Temperature-aging data are presented on class-A-insulated fractional-horsepower motor stators, determined at 200, 160, and 135 degrees centigrade. Of particular interest is the relative aging time to failure at the different temperatures and the resultant temperature-aging curve. This curve shows a slope of 10 to 15 degrees centigrade increase in temperature to halve the aging time to failure in the temperature range covered, 135 to 200 degrees centigrade.

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