As the title says, im just a bit confused with it, what causes the current to alternate? I’m finding it difficult to word my questions as I don’t really understand it so.a general overview of how and why Alternating Current does what it does especially with regards to induction motors would be amazing!
Thank you very much
In: Engineering
I think this might be what you’re looking for. I don’t think I could have put it better myself.
I find the stuff on this website explains it simply and then I go onto other sites for more detail.
https://www.dummies.com/programming/electronics/components/electronics-basics-what-is-alternating-current/
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You need to think of any electrical component, including AC induction motors, as parts of a system.
A system includes inputs and outputs, and hence a transfer function is implied. Part of systems design is efficiency, so we must design taking into account power and energy conversions. Requirements of machines include available power and how that power is going to be used and converted into other forms of energy.
You have entire section because machine design and control engineering requires knowing AC induction, where is used, why and how to keep it or make it more efficient.
AC requires less energy conversion and transformation steps, hence you will preserve energy, or not waste it, during an additional conversion.
Say, you have an AC induction fan in your room, because AC is available in your home’s wiring. If you’d make it based on a DC motor (you can) you will have to add an AC to DC block, where you will have wasted energy, as conversion requires energy,hence the system becomes inefficient. Same goes for almost any AC or DC motor: designers need to preserve energy.
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