clagwell's Blog

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This blog is written by clagwell | 3 entries so far

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Harbor Freight Rikon Impeller Upgrade – Is It Worth It? #3: Help! My motor's smoking!

12-03-2019 08:35 PM by clagwell | 1 comment »

Well, no, it’s not really. I was just afraid that no one would look at a post with a boring title like “Temperature Rise”. Temperature rise may be boring but it’s important to the life of a motor. In fact, it’s critical to the lifetime of nearly everything electrical and electronic. Insulation weakens with age. It ages faster at higher temperatures. The hotter a motor runs the shorter it’s life. The same for an extension cord. When operated at it’s temperature rating the motor insulation will have lost no more than 50% of it’s mechanical strength in 20,000 hours. There’s a rule of thumb that a change of 10C in operating te...

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