Posted by John T PS on April 29, 2020 at 10:02:33 from (45.16.200.171):
In Reply to: Re: Amps vs watts posted by Geo-TH,In on April 29, 2020 at 09:14:20:
George, FYI there is no simple equation (way to may factors and variables and unknowns) I can give you for the starting current of a motor. Let me explain this for you.
Such requires complex physics, mechanical considerations, weights, inertia, starting load and torque, efficiencies on and on and on and YES a current motor design electrical engineer or when I was an engineer at Century Electric I could tell you for a certain motor based on the initial load BUT I CANT GIVE YOU ANY SIMPLE EQUATION THEN OR NOW. The equation for Watts is Volts X Amps but it takes moreeeeeeeeee then that to compute starting current...….
I can tell you as an electrical engineer and a former engineer at Century Electric Motor Company the current to START a motor may be 3 to 5 times or even more then running current GET IT ?????????
Im not sure I understand your challenge??? A person can use a 12 VDC motor orrrrrrrrrrrr a 120 VAC Compressor and an Inverter orrrrrrrrrrrrr a Gas powered Compressor. Theres no "My Way or the Highway" when it comes to a persons free choices, you use what you like and others should do the same. Im not here to argue only to help educate you and others, but Im not perfect I cant explain in a sentence what takes years of study and training to comprehend so dont feel bad if you don't understand it
I will help you the best I can neighbor
Best wishes God Bless and protect you and your family George. As always its a pleasure chatting with you and trying my very best to help
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