I am nearing the end of an overhaul-rebuild of a Wells twin post bandsaw and am swapping the 3 phase motors for single phase. The ENCO catalog lists C Face motors at the best price I can find and they are made right here in the good ol' USA. OK, so now the question. I need a 1 hp motor and theirs is $150.00 and some change, but has a service factor of 1.0 with class B insulation. However, their 1 1/2 hp motor sells for $150.00 and less change and has a service factor of 1.15 with the same class B insulation. The higher hp motor weighs 10 more pounds, but weight isn't an issue. Neither is a slightly (read sliiiiightly) higher operating cost which may not be higher anyhow. So, what are pros and cons of just using the 1 1/2 hp unit with the higher SF? Thanks, John
Electric motor application
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If everything else is the same I would choose the higher service factor. The HP increase may not have a very noticable difference in cutting. But the service factor will give you "more" latitude in "motor abuse".
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Today I will gladly share my experience and advice, for there no sweeter words than "I told you so."Today I will gladly share my experience and advice, for there no sweeter words than "I told you so."
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The saw utilizes three motors and I'd just as soon use single phase. I already investigated VFD's and ruled them out in this project. I'd rather use a motor with a service factor of 1.15 myself, but was wondering if there is any downside to 'over-horsepowering' the machine other than a slight increase (maybe) in operating expense. Thanks, John
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The saw utilizes three motors and I'd just as soon use single phase. I already investigated VFD's and ruled them out in this project. I'd rather use a motor with a service factor of 1.15 myself, but was wondering if there is any downside to 'over-horsepowering' the machine other than a slight increase (maybe) in operating expense. Thanks, John
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