What's the principle of transformer

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ROSELJR
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What's the principle of transformer

Post by ROSELJR » Fri Apr 01, 2022 10:28 pm

Since the primary coil of the transformer is a line, won't it have a large current when it is added to the 220V voltage? Why can it be added to the 220V voltage?
Introduction of transformer: https://www.utmel.com/blog/categories/t ... plications

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