Eddy current will depend on

Question

Question

Answer 1

Eddy current:

The changing flux due to a circulating current induces voltages in the material according to Faraday’s laws of electromagnetic induction.
Since the material is conducting, these induced voltages circulate currents within the body of the material.
These induced currents do no useful work and are known as eddy currents.
The losses that occurred due to eddy current are known as eddy current loss.

Eddy current loss is given by:

\({P_e} = K{f^2}B_m^2{t^2}V\)

Where,

K - coefficient of eddy current. Its value depends upon the nature of magnetic material

Bm - Maximum value of flux density in Wb/m2

t - Thickness of lamination in meters

f - Frequency of reversal of the magnetic field in Hz

V - Volume of magnetic material in m3

Thus, we can say that the eddy current depends on the frequency, flux density, and thickness of the core.