Tap changer

1.The on-load tap-changer is an important device for oil-immersed transformers. Its function is to regulate the number of turns of the transformer windings during the operation of the transformer and thus the output voltage of the transformer. This adjustment is usually made to adapt to changes in grid load or power system operation.

2.The windings of an oil-immersed transformer typically include a high-voltage winding and a low-voltage winding, while the tap changer is connected to the transformer winding, allowing different winding turns to be selected to adjust the transformer's output voltage. This regulating capability is essential to ensure stable operation of the grid and the quality of the power supply.

3.In conclusion, the application of the tap changer in the oil-immersed transformer allows the transformer to be flexibly adapted to different operating conditions and load requirements, and is one of the important regulating devices in the power system.