Power Transformer Dealers Near Gurgaon Power transformers are essential components in electrical power systems. They are used to step up or step-down voltage levels, enabling efficient transmission and distribution of electricity.   How Power Transformers Work: Electromagnetic Induction: They operate on the principle of electromagnetic induction. A primary winding is connected to an alternating current (AC) source. This creates a magnetic field that induces a voltage in a secondary winding.   Voltage Transformation: The ratio of the number of turns in the primary and secondary windings determines the voltage transformation. If the secondary winding has more turns than the primary, the voltage is stepped up. Conversely, if the secondary has fewer turns, the voltage is stepped down.