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The birth of Transformer

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Faraday invented an "inductor ring" on August 29, 1831. This is the first transformer, but Faraday just used it to demonstrate the principle of electromagnetic induction, and did not consider it can have practical use [1]. In 1881, Lucien Gaulard and John Dixon Gibbs showed a device called "secondary hand generator" in London, and then put the technology Sold to Westinghouse, this may be the first practical power transformer, but not the earliest transformer. In 1884, Lussen Gorard and John Dixon Gibbs demonstrated their equipment in the city of Turin, Italy, which uses electric lighting. Early transformers used a linear core and were later replaced by a more efficient toroidal core. Westinghouse engineer William Stanley made the first practical 1885 invention after buying transformer patents from George Westinghouse, Lussen Gorard and John Dixon Gibbs. transformer. Later, the core of the transformer was made up of E-shaped iron sheets, which began commercial use in 1886. The transformer transformation principle was first discovered by Faraday, but it was not until the 1880s that practical applications began. In the competition that the power plant should output DC and AC, the ability of AC to use the transformer is one of its advantages [2]. The transformer can convert the electric energy into a high voltage and low current form and then convert it back, thus greatly reducing the loss of electric energy during the transportation process, so that the economical transportation distance of the electric energy is further. In this way, the power plant can be built away from electricity. Most of the world's electricity has finally reached the users through a series of transformations [3].

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