Re: [EE] Cyclic torque loads on AC motors?
madscientistatlarge <[email protected]>
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Generally, no. That counts as "abuse" for motor rating, i.e. you need a motor designed for that level of load variation, there are several levels. This is why for instance the motor on a dish washer has an oversized open frame, more heat is generated. "...trying to make digital files uncopyable is like trying to make water not wet." Bruce Schneier Sent with Proton Mail secure email. On Saturday, December 7th, 2024 at 3:13 PM, Jason White <[email protected]> wrote: > Suppose I have an AC motor directly cranking a piston pump+check valve air > compressor without a flywheel or anything like that. > > For 180 degrees of shaft rotation, the motor experiences a load of 2 > Newton-meters while air is exhausted/compressed, and then for the other 180 > degrees when air is being taken in there is little to no load (almost 0 > Newton-meters of torque). > > The average torque of the cycle appears to be roughly 1 Newton-meter. > > Can an AC induction motor rated for 1 Newton-meter of torque at full load > be used in this situation without wrecking it? > > -- > Jason White > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > https://mailman.mit.edu/mailman/listinfo/piclist