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by rajneesh on April 3rd, 2008

rajneesh

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How convertor transformer works

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  • by Jeztyr - whispering in the ears of kings on April 3rd, 2008

    Jeztyr - whispering in the ears of kings

    Are you referring to an electrical transformer? The most common design consists of two coils of wire, electrically isolated but magnetically connected. That is, they share a magnetic medium (like soft iron) but are not attached or soldered together.

    The coil hooked up to the mains power is called the Primary. This is the "Driving" coil. The other coil is the, wait for it... Secondary, the "Driven" coil. A current in the Primary will create a magnetic field in the medium which is "felt" by the Secondary. If the magnetic field is changing, then a voltage will be "Induced" in the Secondary.

    The Secondary voltage is reliant upon the change in magnetic flux and the number of turns of its coils. There are equations to express this. If a Secondary Voltage is higher than the Primary it's a "Step up" transformer. If lower, I'll let you guess. "Isolating" transformers are where the P and S Voltages are equal, and play an important role in electrical distribution.

    A good question you should ask yourself, if this is a research assignment, is "Why, oh why can't I put DC into my transformer and expect it to work properly?"

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