The transformer winding has an inductance of 0.6 H. At what current strength the energy of the magnetic field

The transformer winding has an inductance of 0.6 H. At what current strength the energy of the magnetic field of the transformer will be equal to 90 J.

Task data: L (winding inductance) = 0.6 H; W (required energy of the magnetic field of the taken transformer) = 90 J.

The current strength to achieve a magnetic field energy of 90 J is determined using the formula: W = L * I ^ 2/2, whence I = √ (2W / L).

Let’s perform the calculation: I = √ (2 * 90 / 0.6) = 17.32 A.

Answer: The current in the winding of the transformer taken should be equal to 17.32 A.