CHAPTER 1

Fundamental Concepts: Transformers

When power generation was introduced in this country through the efforts of Thomas Edison, the first plants were all direct current (DC) generation facilities. This meant that each power plant had to be close to the consumers because of the inherent losses of DC transmission of power. Efforts to use alternating current (AC) proved to be futile due to hysteresis and eddy current losses. Even with the introduction of AC transmission, many DC plants were still in use in the mid 1900s.

Primarily through the genius of one man, Charles Proteus Steinmetz (1865–1923), the theory of AC transmission was perfected, and the use of AC made possible. Dr. Steinmetz was a physically handicapped refugee from Germany ...

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