SOLUTION

Cruciform transformer

• Cruciform shape is used in transformer core to reduce core loss, copper, in the winding, reduce core reluctance, and reduction of iron and copper losses.
•  In a transformer, eddy current losses in the iron core are directly proportional to the core’s thickness. To reduce eddy current loss, we usually use thin sheets of the iron core to reduce the skin effect.
• Cruciform or stepped core reduces the diameter of circumscribing. Due to the less diameter, the insulating material required is less and the amount of copper required for winding is reduced. Due to the above reason size, weight, and cost of the Transformer are less with cruciform care.