What are the losses of transformers in operation? How to reduce losses?



The losses in transformer operation include two parts:

(1) It is caused by the iron core. When the coil is energized, the magnetic lines of force are alternating, causing eddy current and hysteresis loss in the iron core. This loss is collectively called iron loss.

(2) It is caused by the resistance of the coil itself. When the primary coil and secondary coil of the transformer pass through the current, there will be power loss, which is called copper loss.

Iron loss, copper loss and transformer loss are related to transformer capacity, voltage and equipment utilization. Therefore, when selecting the transformer, the equipment capacity shall be consistent with the actual usage as much as possible to improve the utilization rate of the equipment, and the transformer shall not be operated with light load.