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TRANSFORMATORI ELEKTRI

TRANSFORMATORI ELEKTRI, olati statikiero guyand, ki baroi tagyir dodani buzurgii shiddati tagyiryobanda tain shudaast. Tarzi kori transformatori elektri ba hodisai induksiyai elektromagniti asos yoftaast. Transformatori elektri yakpechai avval (PA), yak yo yakchand pechai soni (PS) va dilaki ferromagniti dorad. Hamai pechaho dar boloi dilak joy girifta, bo ham aloqai induktivy dorand. Bazan vazifai pechai soniro yak qismi pechai avval ijro mekunad (yo baraks); pechai transformatori elektriro avtotransformator menomand.

transformatori-el
Transformatori elektriro bori avval soli 1876 P. N. Yablochkov dar zanjiri charogi elektri istifoda burdaast. Soli 1890 elektretekhniki rus M. O. Dolivo-Dobrovolskiy transformatori elektrii sefazaro ikhtiro namud. Minbad transformatori elektri az jihati konstruksiya, afzoishi iqtidor va k. a. m., behtar gardidani izolyasiyai pechaho takmil yoft. Hozir navhoi gunoguni transformatorhoi elektrie mavjudand, ki dar sohahoi mukhtalifi tekhnika istifoda meshavand. Transformatori quvvagi yake az namudhoi asosii transformatori elektri ba hisob meravad, ki dar bayni on guruhi asosiro transformatorhoi quvvagii dupechador ishgol mekunand. K. a. m.-i transformatori elektrii quvvagii balandiqtidor 98—99% ast. In khel transformatori elektri (ravgani)-ro odatan dar havoi kushod meguzorand. Transformatorhoi beravganro transformatori elektrii khushk menomand. Transformatorhoi khushkro beshtar dar radiotekhnika istifoda mebarand. Navhoi digari transformatorhoi quvvagi niz mavjudand, ki onho baroi sanjidani shiddat va quvvahoi jarayoni baland (transformatori chenkunanda, transformatori shiddat, transformatori quvvai jarayon), past kardani darajai talafi khati aloqa (transformatori furukash), ba shakli impulsi ovardani shiddati sinusoidali (piktralsformator tabdili impulshoi quvvai jarayon va shiddat (transformatori impulsi) tain shudaand.
D. Davlatshoev.

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SAMOLYOT

SAMOLYOT, apparati parishi muharriku boldori vaznintar az havoet, ki baroi parvoz dar atmosfe¬ra tain shudaast. …