Explain the energy losses in a transformer. How are they minimized?
Step 1: Copper Loss
1. Copper loss occurs in the form of heat energy lost due to the resistance of the copper coils used in the windings of a transformer.
2. Copper loss can be minimized by using wire with a large cross-sectional area in the coils.
Step 2: Hysteresis Loss
1. Loss of energy due to continuous magnetization and demagnetization of the transformer is called hysteresis loss.
2. Hysteresis loss in a transformer can be minimized by using soft magnetic materials for the core like permalloy or silicon iron.
Step 3: Flux Loss
1. Flux loss occurs if the coupling of the primary and secondary coil is not good.
2. Flux loss in a transformer can be reduced by winding the primary and secondary coils one over the other.
Step 4: Eddy current Loss
1. Energy loss in a metallic plate when kept in a time-varying magnetic field causes eddy current loss.
2. It can be minimized by using a laminated iron core in the transformer.