دانلود کتاب ترانسفورماتور: سفر بیش از جنبه های مختلف ترانسفورماتورها، اینداکتورها و ترانسداکتورها

This book Discusses in detail (with calculation examples) all currently known magnetic phenomena, such as skin effect, proximity effect, leakage fields of the gap and the final effect. It also discusses the effects of frequency and waveform in the generation of the losses by these complex phenomena. Simplifications of those calculations are presented reducing this complex work to a few formulas. Such effects are found in transformers, high frequency or high power, being the major limiting and the main complicating factor for your project. Often, the simple study and the selection of an appropriate conductor shape, moves the position of an unachievable project for a solution of high efficiency. In the majority of the cases this is completely invisible for the designer and only the precise knowledge can lead to a reasonable solution. Their effects are already felt at 60 Hz/300KVA transformers, where the conductors height are in the same order of the skin depth. The designer often is seen in an unusual situation, where a solution for a heated transformer is determined by the increase in gauges of wire and is discovered soon that it warmed up even more. This often leads to expensive solutions and the use of unnecessary and expensive additional amount of copper. Throughout the book, those phenomena are analyzed mathematically and simulated by finite elements software - FEA (Finite Elements Analysis giving total understanding of such subjects. Kfactor transformers is also discussed and a design procedure is presented