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Message Subject The Contact Thread ~ The Magic Of Our Fractal Reality ~ Wanna Take A Ride? (version 20.13)
Poster Handle Anonymous Coward
Post Content
Good morning aether. hi

That's a topic I see a lot of in a hands on kind of way. In my profession I deal with all sorts of 'fluids' that are used as mediums for things like heat transfer. Those fluids could be refrigerants, water, brine solutions, air, etc...and of course the mechanical equipment that handles these mediums are designed in such a way to do just that. But every once in a while I'll see a 'solid' object that gets caught up in a system, and their main drives are all vortical in nature, be it pumps, fans (some with modulating vortex dampers), compressors etc., and those unfortunate solids sure do get 'liquified', lol.

I work with a lot of AC motors and see many motor failures in the field. One of the most violent acts you can do to a motor is to turn it on, because 99% of the wear and tear occurs on start up when the stator works so hard to overcome the inertia of the stationary rotor (LRA). When an AC motor (that's obviously designed to rotate) encounters problems that impede rotation, such as bearing seizures, the motor will typically draw 7 times it's normal running load amperage rating - RLA. When it reaches that condition it's called 'locked rotor amperage' - LRA. Same amperage draw as on start up. Either one of two things with occur in this condition. A safety will open the circuit, which then opens the main power circuit to the motor, or the motor will heat up so much that the laminate around the windings will break down, causing the motor to short out.


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