Release date : 2019-03-06 15:30:13

When the primary side is connected to the AC power source, there is an alternating current in the winding, and an alternating magnetic flux having the same frequency as the applied voltage is generated in the iron core, and the alternating magnetic flux respectively induces the same frequency on the primary and secondary sides. Electromotive force.
When the secondary side has an electromotive force, it outputs electric energy to the load, realizing the transmission of electric energy of different voltage levels. Since the magnitude of the induced electromotive force is proportional to the number of turns of the winding, changing the number of turns on the primary and secondary sides changes the voltage on the secondary side.
Concisely speaking: electromagnetism: the alternating current is applied to the primary side, and the magnetic field is generated at the core.
Magnetoelectricity: changing the magnetic field cross-linking side will generate an induced potential on the secondary side