In the process of structural design, the selection of the diameter of the single-phase EI transformer core is a very important parameter. From the analysis of the principle of the transformer, it can be known that the increase in the diameter of the core will reduce the number of winding turns under the condition that the magnetic core density of the core is kept constant. That is to say, the increase in the consumption of the core material will reduce the consumption of the wire material and reduce the short-circuit impedance and the load loss value, and vice versa.
When the number of winding turns remains the same, increasing the diameter of the single-phase EI transformer core will reduce the magnetic density, while the no-load current and no-load loss will decrease accordingly, but the core material consumption will increase. However, if the core diameter is reduced, the core diameter may be oversaturated so that both the no-load current and the no-load loss are greatly increased.
Comprehensive analysis, in fact, the determination of the diameter of the single-phase EI transformer core will directly affect the manufacturing cost of the entire transformer. Moreover, the selection of the core diameter also affects the size and shape of the entire transformer. Finally, the selection of the core diameter should also consider the requirements of serialization and generalization.http://www.chenglion.com/
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