The Magnetic core of the transformers is built up from cold rolled and precisely grained magnetic steel laminations. Hi-B grade & laser scribed laminations are used to decline the load fluctuations and noise levels.

These are leveled at an angle of 45 degrees. The core leg & yoke laminations are deposited in metered joints. The function is primarily used for easy passage of magnetic flux, avoid no load losses, hot spots, and to maintain low noise levels.