Hochleistungs-Elektrotransformator erklärt

Electric transformer is a device used to transfer an alternating current or voltage from one circuit to another circuit by way of electromagnetic induction. The simplest kind comprises of two coil of wire, insulated from one another and arranged to change the current in one coil (called as primary) would in turn produce a change in voltage in the other coil (called secondary).<br /><br />http://www.custompowertransformer.com