Transformer Cores Are Laminated With

Comment related questions on transformers.

Transformer cores are laminated with.

This means that a steel laminated core can carry a magnetic flux 1500 times better than that of air. The eddy currents cause energy to be lost from the transformer as they heat up the core meaning that electrical energy is being wasted as unwanted heat energy. Eddy currents are loops of electric current induced within conductors by a changing magnetic field in the conductor due to faraday s law of induction. The purpose of providing an iron core in a transformer is to.

Wikipedia defines eddy currents as. Reduce eddy current losses. The core is laminated to reduce these to a minimum as they interfere with the efficient transfer of energy from the primary coil to the secondary one. Most transformer cores are constructed from low carbon steels which can have permeabilities in the order of 1500 compared with just 1 0 for air.

Thus to reduce the losses solid core is not used in transformer. But a solid iron core has some own disadvantage due to to some losses. However when a magnetic flux flows in a transformers steel core two types of losses occur in the. Laminations are provided to reduce eddy currents.

The iron core transformer has higher permeability thus it is applied in transformer in place of air core in modern transformer. Reduce all above losses. Laminated core transformer showing edge of laminations at top of photo interleaved e i transformer laminations showing air gap and flux paths transformers for use at power or audio frequencies typically have cores made of high permeability silicon steel.