What is difference between transformer and auto transformer?

Answer:
The main difference between auto and power transformer is ,that auto transformer has only single winding,but the power transformer has two spearte winding for HV,and LV," the second difference is vary important ,that is auto transformer work as a self induction rule,but the power transformer work on as a mutual induction rule.
First answer by ID2006590826. Last edit by ID2006590826. Question popularity: 1 [recommend question].