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At rated power, the ratio between the output power of the transformer and the input power is called the efficiency of the transformer,
When the output power of the transformer is equal to the input power, the efficiency is 100%. In fact, such a transformer does not exist. Because of the existence of copper loss and iron loss, the transformer will have a certain loss.
What is copper loss?
Because the transformer coil has a certain resistance, when the current passes through the coil, part of the energy will become heat. Since the transformer coil is wound with copper wire, this loss is also called copper loss.
When the output power of the transformer is equal to the input power, the efficiency is 100%. In fact, such a transformer does not exist. Because of the existence of copper loss and iron loss, the transformer will have a certain loss.
What is copper loss?
Because the transformer coil has a certain resistance, when the current passes through the coil, part of the energy will become heat. Since the transformer coil is wound with copper wire, this loss is also called copper loss.
