Reduce copper loss

Reduce hysteresis loss

Reduce mechanical loss

Reduce eddy current loss

Copper loss > Iron loss

Copper loss < Iron loss

Copper loss = Iron loss

Copper loss =Eddy current loss

Activate in moisture presence

Activate at overloading condition

Activate at open circuit condition

Activate at high temperature condition

To minimise the burden

To maintain constant output

To prevent high static shield

To minimise the error in reading

Using thin laminated core

Providing long magnetic path

Using high flux density material

Providing good quality core material