How Does an Auto Transformer Function?

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    Auto Transformer
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An autotransformer operates by using a single winding to provide multiple voltage outputs, with a wiper that taps into different points along the winding. This allows for variable voltage adjustments, as seen in devices like Variacs. The wiper can connect to both lower and higher voltage sections of the winding, enabling flexibility in voltage control. Additional resources on transformer theory and autotransformers can be found online for further understanding. Overall, autotransformers are efficient for applications requiring adjustable voltage levels.
karim102
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Hello:smile: ,
I want to know about operate the auto transformer, if anyone could gimme the diagram about it and give explain about main function.


Thanks a lot
I appreciate it :rolleyes:
 
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Yap, exactly. I mean that
 
Well a variac is just an autotransformer with a wiper for the output voltage tap. The wiper typically can make contact to windings both below (lower voltage) and above (higher voltage) the input voltage tap. I googled transformer theory autotransformer, and got lots of hits. Here's one website with pretty good transformer info:

http://wiki.4hv.org/index.php/Transformer
 
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