Core losses of distribution transformers can be significantly reduced by using which type of core?

Using an amorphous core significantly reduces core losses in distribution transformers due to its unique physical properties. Amorphous steel consists of non-crystalline iron, which minimizes the energy losses that occur when the magnetic fields change. This happens mainly because the disordered structure of the amorphous material leads to lower hysteresis losses, which are a result of the magnetic domains having to realign every time the magnetic field changes.

In addition, amorphous cores have a much lower eddy current loss compared to traditional laminated steel cores. The irregular structure means that the paths available for the formation of eddy currents are disrupted, allowing for a more efficient magnetic circuit. This results in a transformer that operates more efficiently, generating less heat and thus lowering operational costs.

The beneficial properties of amorphous cores make them an excellent choice for modern distribution transformers, allowing for improved energy efficiency and reduced environmental impact due to lower losses.