An electromagnetic device that increases or decreases the Voltage the voltage in an electrical circuit of AC, manteniendo la Frequency. The power coming into the team, in the case of an ideal transformer is equal to that at the exit is obtained. Actual machines have a small percentage of losses, depending on its design, size, etc..
Transformers are based on the phenomenon of electromagnetic induction devices and consist, in its simplest form, by winding the coils on a core of closed Hierro dulce. Coils or windings are called primary and secondary as applicable to high or low voltage, respectively. Transformers also exist with more windings, in this case there can be a winding “tertiary”, lower voltage secondary.
Transformer
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