Introduction One of the fundamental equations governing transformer operation is: Voltage = 4.44 × Flux × Frequency × Number of Turns As you can see, the number of turns is directly proportional to the voltage. This means we can control the voltage value by adjusting the number of turns. The Importance of Voltage Regulation in Transformers In a transformer, the secondary side is connected to loads, and these load voltages are supposed to remain stable. You also know that the voltages on the primary and secondary sides follow a ratio determined by the number of turns in each winding. Under any condition, if the voltage increases on the primary winding, the voltage on the secondary winding connected to the loads will also increase. This can lead to damaging or burning out devices and equipment. Therefore, to stabilize the voltage on the secondary side, we use a device called a Tap…