2nd October 2019

miniphysics
10

What causes power loss in a transformer?

Energy Losses In Transformer. Although transformers are very efficient devices, small energy losses do occur in them due to four main causes: Resistance of windings – the low resistance copper wire used for the windings still has resistance and thereby contribute to heat loss. The eddy currents cause heat loss.

In this manner, how does high voltage reduce energy loss?

Transmission losses are due to current flowing in the conductors. The higher the currents the higher the loss is. So in order to reduce losses and have better efficiency transmission is done at lower currents. Overall power should be same so as power=Voltage*current when the current is low the voltage is high.
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