★Power transformers work by utilizing the principle of electromagnetic induction to achieve a change in voltage. Specifically, when the primary coil (i.e., the primary coil) of a power transformer is energized, it generates an alternating magnetic field in the iron core. This alternating magnetic field passes through the secondary coil (i.e., the secondary side coil), which generates an induced electromotive force in the secondary coil, realizing the change in voltage.
★In a power transformer, the primary and secondary coils are usually wound on the same core. When the primary coil is energized, it generates an alternating current, which produces an alternating magnetic flux in the core. Because the primary and secondary windings in the same core, when the magnetic flux through the secondary winding, it will produce an induced electromotive force on the secondary side, thus realizing the voltage transformation.
★It should be noted that the magnitude of the induced electromotive force in a power transformer is directly proportional to the number of turns in the coil, the magnitude of the magnetic flux, and the frequency of the power supply. Therefore, by adjusting these factors, the rise and fall of voltage and the transformation of current can be realized to meet the needs of different load equipment.
★In general, the working principle of power transformer is to utilize the principle of electromagnetic induction, by energizing the primary coil, an alternating magnetic field is generated in the iron core, thus allowing the secondary coil to generate an induced electromotive force and realize the change of voltage. This transformation process has a wide range of applications in the power system, which can meet the needs of different load equipment for voltage and current.
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