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1. en.wikipedia.org › wiki › Mikhail_Dolivo-DobrovolskyMikhail Dolivo-Dobrovolsky - Wikipedia

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   Mikhail Osipovich Dolivo-Dobrovolsky ( Russian: Михаи́л О́сипович Доли́во-Доброво́льский; German: Michail von Dolivo-Dobrowolsky or Michail Ossipowitsch Doliwo-Dobrowolski; 2 January [ O.S. 21 December 1861] 1862 – 15 November [ O.S. 3 November] 1919) was a Russian Empire -born engineer, electrician, and inventor of Polish-Russian origins, activ...

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3. teslaresearch.jimdofree.com › niagara-falls-powerMikhail Dolivo-Dobrovolsky (1862-1919) - Open Tesla Research

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   Mikhail Osipovich Dolivo-Dobrovolsky (January 2, 1862 in Gatchina near Saint Petersburg — November 15, 1919 in Heidelberg, Germany), was a Russian engineer, electrician, and inventor. Born in a mixed family between a Polish noble family originating from Mazowsze, and a Russian noble family.

4. www.lindahall.org › mikhail-dolivo-dobrovolskyMikhail Dolivo-Dobrovolsky - Linda Hall Library

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   Jan 2, 2020 · Mikhail Dolivo-Dobrovolsky, Russian electrical engineer and inventor, was born in Gatchina, a town outside of St. Petersburg, on January 2, 1862. After attending secondary school in Odessa, he matriculated at the Riga Polytechnical Institute in present-day Latvia.

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5. ethw.org › Initial_Tesla_Polyphase_ › _"Three-PhaseInitial Tesla Polyphase / "Three-Phase" Alternating-Current ...

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   The three-phase induction motor was developed by Mikhail Dolivo-Dobrovolsky in 1889. Prior to this, all commercially produced motors were DC, utilizing expensive commutators and high-maintenance brushes prone to malfunction, and not usable for operation on an alternating-current network.

6. www.wikiwand.com › en › Mikhail_Dolivo-DobrovolskyMikhail Dolivo-Dobrovolsky - Wikiwand

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   Mikhail Osipovich Dolivo-Dobrovolsky was a Russian Empire-born engineer, electrician, and inventor of Polish-Russian origins, active in the German Empire and also in Switzerland.

7. www.vertiv.com › 4a8011 › globalassetsVERTIV™ SALUTES: HEROES OF POWER

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   Mikhail Dolivo-Dobrovolsky THE THREE˜PHASE PIONEER Born in 1862, Mikhail was a Russian-Polish engineer who emigrated to Germany in 1881. In 1887, he started his work with AEG (Germany’s General Electricity Company). Just a short year later, Dolivo-Dobrovolsky would present a working

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   Who was Mikhail Dobrovolsky?

   • THE THREE˜PHASE PIONEER Born in 1862, Mikhail was a Russian-Polish engineer who emigrated to Germany in 1881. In 1887, he started his work with AEG (Germany’s General Electricity Company). Just a short year later, Dolivo-Dobrovolsky would present a working three-phase˜electrical generator˜and a three-phase˜electrical motor.

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   Who was Mikhail Dolivo-Dobrovolsky?

   • Mikhail Dolivo-Dobrovolsky was born as the son of the Russian civil servant and landowner of Polish descent Josif Florovich Dolivo-Dobrovolsky and Olga Mikhailovna Jewreinova from an old Russian noble family in Gatchina near Saint Petersburg. He spent his school days in Odesa, where his father was transferred in 1872.

   Mikhail Dolivo-Dobrovolsky | Wikipedia

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   What did Dolivo Dobrovolsky do?

   • Just a short year later, Dolivo-Dobrovolsky would present a working three-phase˜electrical generator˜and a three-phase˜electrical motor. It was at the famed 1891 International Electro-Technical Exhibition˜of Europe where he demonstrated how his system could transmit electric power 176 kms while achieving e˚ iciency levels as high as 75%.

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   How many patents does Mikhail Dolivo-Dobrovolsky have?

   • Not done yet, he created a three-phase˜transformer˜and short-circuited (squirrel-cage)˜induction motor that same year. Dolivo-Dobrovolsky is also credited for designing the first three-phase˜hydroelectric power plant. All in all, Mikhail has over 60˜patents to his name. Mikhail reminds us that improving e˜ iciency has always been our goal!

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9. scanalyst.fourmilab.ch › t › three-phase-powerThree-Phase Power: Nikola Tesla v. Mikhail Dolivo-Dobrovolsky

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   Nov 29, 2022 · Interesting issues of independent invention of two-phase power by several parties and then independent invention of of three-phase power by Tesla and Dolivo-Dobrovolsky. Tesla patented a six-wire three-phase system. Dolivo-Dobrovolsky actually built a better three-wire system.