How dc transformer works?
Answer:
Transformers only work with AC because the lower the frequency the larger the transformer has to be and at zero frequency (DC) it would have to be infinitely large.
So what some people call a DC transformer should be called a DC-DC converter. How does it work?
Well, there's a transformer inside it.
So how does the transformer work if it's DC? The answer is an electronic oscillator that takes the DC and converts it into AC. Then it can be fed to a transformer that changes the voltage. After that, the AC is converted back to DC by another electronic circuit.
So it's more complicated than an ordinary transformer, more expensive and less efficient. That's why electricity distribution systems always use AC so that the voltage can easily be changed as required.
They don't. Transformers work on AC voltage only.
To change DC voltage you need a DC Converter. It's not a transformer it converts one DC voltage to a different DC Voltage. It may also be called a DC to DC power Supply.
KEPCO makes many different kinds. Use Goggle and find their Home page.
Transformers (AC, not DC) are based off of Maxwell's Equations:
http://scienceworld.wolfram.com/physics/...
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