Gibbs of Gao Lande — 2 dynamoes (transformer) although open up the actual application domain of transformer, but inchoate this kind of transformer is put in certain and congenital inadequacy, if open circuit core, primary foul line encircles series connection,wait. What improve to this is oppugned and be being made above all is factory of Hungarian hillock Ci (3 of Ganz) young engineers Bulashen (O.T.Blathy, 1860 ～ 1939) , Qibainuofusiji (C.Zipernowsky, in 1853 ～ 1942) and heart (M.Deri, 1854 ～ 1938) .
Bulashen entered hillock Ci plant 1883, hold the position of technical chief for a long time. He is invented all one's life quite abundant, ceng Huo gets 100 multinomial patent, include regulator of transformer, voltage, turbogenerator to wait. Bulashen is to study alternator paralell connection runs one of people first, he still invented a lot of electric machinery to devise program and design calculation method. Additional, he introduced) of word “Transformer”(transformer above all 1885, the term of this one compendious lifelike is people very quickly what to agree with and be accepted, replace the ” of “ induction coil that uses before, “ quickly 2 times the term such as dynamo ” , all the time continue to use up to now.
Qibainuofusiji is the hillock Ci plant that established 1878 one of founders of electric ministry. 1893, he carries the electric professor that holds the post of university of Hungarian Budapest technology. He obtains 40 multinomial patent all one's life, ever held the post of Hungarian electrician to learn a chairman 30 years.
In heart added hillock Ci plant 1882, he works for a long time in sale ministry, but have research quite to electric machinery and transformer. He ever designed compound excitation alternator, the electromotor in the moral character of — of electromotor of type of double brush repulsion that still sends palpability to name with his name.
1884, clever technology exposition holds Italy, personnel of a batch of technologies visited Bulashen and hillock Ci plant this exposition, the Gibbs of Gao Lande — that saw exhibit on the meeting 2 dynamoes. Bulashen becomes aware exquisitely to be planted 2 times to this at that time the dynamo has outlook of very great progress, notice the advantage of this kind of transformer and insufficient place. On exposition, bulashen ever asked Gaolande: “ why don't 2 your dynamoes use closed circuit core? Truly of ” Gao Lande ponders the ground to reply: “ uses closed circuit core breakneck, and very wasteful. ”
July 1884, bulashen from clever after returning Budapest, the knowledge that attends clever fair instantly told Qi Bainuo the husband to Si Jihe is amounted to in, they decide what undertake transformer instantly to improve an experiment. Bulashen suggests to use closed circuit core, capital construction discusses Qibainuofusi to encircle primary foul line paralell connection of series connection instead, and He Deli undertakes study an experiment together. On August 7, 1884, introduced to concern on records of test of factory of Ci of their on guard shut the transformer) that joins magnetic circuit core.
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