For the English full text of the article please see the attached PDF-File (English version follows Russian version).ABSTRACT The article is dedicated to the 125th anniversary of the birth of Vasily Nikitin, the successor to the Russian inventors of electric arc welding. He became the founder of the theory of electric machines and apparatus for electric arc welding and contributed to creation of electric welding engineering and introduction of electric arc welding in railway transport and in the

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... national economy. Keywords: history, electrical engineering, electric welding, Vasily Nikitin, Benardos, Slavyanov, theory of electric welding machines, Gosplan, electrothermia, railway, shipbuilding, electric motors.