Electric current

AC (alternating current) motors

In 1882, Nikola Tesla identified the rotating magnetic field principle, and pioneered the use of a rotary field of force to operate machines. He exploited the principle to design a unique two-phase induction motor in 1883. In 1885, Galileo Ferraris independently researched the concept. In 1888, Ferraris published his research in a paper to the Royal Academy of Sciences in Turin.
Introduction of Tesla's motor from 1888 onwards initiated what is known as the Second Industrial Revolution, making possible the efficient generation and long distance distribution of electrical energy using the alternating current transmission system, also of Tesla's invention (1888). Before the invention of the rotating magnetic field, motors operated by continually passing a conductor through a stationary magnetic field (as in homopolar motors).
Tesla had suggested that the commutators from a machine could be removed and the device could operate on a rotary field of force. Professor Poeschel, his teacher, stated that would be akin to building a perpetual motion machine.^[1] Tesla would later attain U.S. Patent 0416194 (PDF), Electric Motor (December 1889), which resembles the motor seen in many of Tesla's photos. This classic alternating current electromagnetic motor was an induction motor.

AC (o'zgaruvchan tok) dvigatellari

1882 yilda Nikola Tesla aylanadigan magnit maydon printsipini aniqladi va mashinalarni boshqarish uchun aylanadigan kuch maydonidan foydalanishga kashshof bo'ldi. U 1883 yilda noyob ikki fazali asinxron motorni loyihalash printsipidan foydalangan. 1885 yilda Galileo Ferraris kontseptsiyani mustaqil ravishda tadqiq qildi. 1888 yilda Ferraris o'z tadqiqotini Turindagi Qirollik Fanlar akademiyasida chop etilgan maqolada nashr etdi.
1888 yildan boshlab Tesla dvigatelining joriy etilishi Ikkinchi sanoat inqilobi deb nomlanuvchi hodisani boshlab berdi, bu esa Tesla ixtirosi (1888) bo'lgan o'zgaruvchan tok uzatish tizimidan foydalangan holda elektr energiyasini samarali ishlab chiqarish va uzoq masofalarga taqsimlash imkonini berdi. Aylanadigan magnit maydon ixtiro qilinishidan oldin motorlar doimiy ravishda doimiy magnit maydon orqali o'tkazgichni o'tkazish orqali ishlaydi (gomopolyar motorlarda bo'lgani kabi).Tesla mashinadan kommutatorlarni olib tashlashni va qurilma aylanadigan kuch maydonida ishlashini taklif qildi. Professor Poeschel, uning o'qituvchisi, bu abadiy harakat mashinasini yaratishga o'xshash bo'lishini aytdi.[1] Keyinchalik Tesla AQSh patenti 0416194 (PDF), Elektr dvigateli (1889 yil dekabr), bu Teslaning ko'plab fotosuratlarida ko'rilgan motorga o'xshaydi. Bu klassik o'zgaruvchan tok elektromagnit vosita induksion vosita edi.