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Ottó Bláthy

otto blathy, otto blathy chess
Ottó Titusz Bláthy 11 August 1860 – 26 September 1939 was a Hungarian electrical engineer In his career, he became the co-inventor of the modern electric transformer,12 the tension regulator3 voltage stabilizer, the AC watt-hour meter,34 motor capacitor for the single-phase AC electric motors, the turbo generator, and the high-efficiency turbo generator

Bláthy's career as an inventor began during his time at the Ganz Works in 1883 There, he conducted experiments for creating a transformer It is noteworthy that the name "transformer" was created by Bláthycitation needed In 1885 the ZBD model alternating-current transformer was invented by three Hungarian engineers: Ottó Bláthy, Miksa Déri and Károly Zipernowsky ZBD comes from the initials of their names In the autumn of 1889 he patented the AC watt-meter5

Bláthy's Wattmeter


  • 1 Early life
  • 2 Professional life
  • 3 Chess works
  • 4 References
  • 5 External links

Early lifeedit

He attended schools in Tata and Vienna, where he obtained diploma of machinery in 1882 Between 1881 and 1883 he worked at the machinery workshop of the Hungarian Railways MAV Attracted by the successes of Károly Zipernowsky, he joined his team on 1 July 1883 He admitted he had learnt nothing about electrotechnics in university, so he started to learn about the theory himself Using the Maxwell equations he invented a practical approach of sizing magnetic coils Kapp and Hopkinson for whom Hopkinson's law is named only published their findings later in 1886, and 1887

Professional lifeedit

His practical calculation method was crucial in building the first practical transformer Based on his findings, he rebuilt his machines in 1883 and obtained better efficiency with the same weight He was the first to investigate the heat dissipation problems of electric motors, and at that time the connection between current density and heat was determined

At the Turin Italian National Exhibition in 1884, he saw Gaulard and Gibbs's "secondary generator"' ie AC transformer system, and he decided to improve it Including a closed-loop magnetic field, based on the findings of Faraday, he conducted experiments with Miksa Déri in the summer of 1884 at the Ganz factory Based on these experiments, they invented the transformer in 1885, which was unveiled at the Budapest National Exhibition in 1885

Based on the opinions of Galileo Ferraris, the Italian government ordered a power transformer for Rome, which was installed in October 1886 Later, they designed a power plant for Tivoli, built by Ganz, with six water turbines and 5000 V, which were worked in parallel with the old steam engine generators This was the first time in history two high-voltage power plants were connected

His other invention, the electricity meter, was first introduced to the market in 1889 He tried to improve it and decrease its weight

Chess worksedit

Besides his scientific work, Bláthy is well known as an author of chess problems He specialized in the field of very long moremovers, also known as longmovers see grotesque chess for one of his problems


  1. ^ Encyclopædia Britannica
  2. ^ Guarnieri, M 2013 "Who Invented the Transformer" IEEE Industrial Electronics Magazine 7 4: 56–59 doi:101109/MIE20132283834 
  3. ^ a b "Biography of Otto Titusz Blathy" Incredible People Retrieved 2010-09-28 
  4. ^ Eugenii Katz "Blathy" Peopleclarksonedu Archived from the original on 25 June 2008 Retrieved 2009-08-04 
  5. ^ Ricks, GWD March 1896 "Electricity Supply Meters" Journal of the Institution of Electrical Engineers 25 120: 57–77 doi:101049/jiee-118960005  Student paper read on 24 January 1896 at the Students' Meeting

External linksedit

  • Bláthy's Inventions 1
  • Technical University of Budapest, "Ottó Titusz Bláthy"Budapest, 1996
  • Blathy's problems on PDB Server
  • Biography and inventions of Otto Titusz Bláthy
  • Evgeny Katz 2007-03-24 "Ottó Titusz Bláthy" Clarkson University Archived from the original on 25 June 2008 Retrieved 2009-08-02 

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Ottó Bláthy

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