What is hysteresis and eddy current loss in transformer?
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Hysteresis current loss is the energy loss that occurs in a transformer due to the magnetization saturation in the core of the transformer.
The eddy current loss is current loops formed over conductor surfaces because of the changing magnetic flux in the conductor.
The heat loss due to the repeated reversal of the magnetic field in the core is known as hysteresis loss.
When the conductor is placed in the varying magnetic field the localized current starts flowing in the conductor is called the eddy current. The energy loss wasted in the form of heat energy in the conductor caused by the flow of eddy current is known as eddy current loss.
Further reading-https://www.electricalvolt.com/2018/09/no-load-losses-in-transformer/