asinxron mashinaning ekvivalent sxemalari

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asinxron mashinaning ekvivalent sxemalari asinxron mashinaning ekvivalent sxemalari asinxron mashinaning t ko'rnishidagi ekvivalent sxemasi magnitlovchi konturning uchlaridagi kuchlanish u12=e1=e2 bu sxemada aktiv quvvat isroflari hisobga olinmagan t-paralel yoki ketma-ket ravishda rmg aktiv ko'rinishidagi qarshilik ulanadi. bu qarshilikdagi isroflar mashinaning aktiv quvvat isroflariga teng. asinxron mashinaning g ko'rinishidagi ekvivalent sxemasining magnitlovchi konturi birinchi zanjirning kirishiga ulangan bo'lib, mashinaning magnit oqimini kuchlanishga bog'liqligini to'g'ri ifodalaydi asinxron mashinalarning vektor diagrammasi kuchlanishlar tenglamasi va ekvivalent sxemasi asosida chizilishi mumkin. asinxron dvigatellarning vektor diagrammasi transformotorning vektor diagarammasiga o'xshash bo'ladi, lekin asinxron mashinalardagi havo bo'shligi hisobiga magnitlovchi tok im transformotorning magnitlovchi tokidan ancha katta va ikkinchi zanjirdagi mexanik kuvvat toza aktiv xarakterga ega. asinxron mashinaning sirpanishi juda kichik bo'lganligi sababli r2`/s qarshilik tarqalish induktivligi x12 ga nisbatan ancha katta va shuning uchun 2 burchak kichik. vektor diagrammani ko'rish uchun magnit oqim vektorini abstsissa o'qi bo'yicha vektorlari chiziladi. asinxron mashinaning vektor diagrammasi asinxron dvigatelning mexanik xarakteristkasi asinxron …

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ilan ishlashigacha) sirpanish qiymatini formulaga qo'yib, uning aylantiruvchi momenti hisoblab chiqiladi va mahlum masshtabda xarakteristka quriladi rasm- asinxron motorning mexanik xarakteristikasi n = n0(1–s) asinxronnogo dvigatelni mexanik xarakteristikasi n = f(m) n0 n, ob/min nn mn mp mkr m, nm nominal aylanishlar chastotasi sinxron aylanishlar chastotasi salt ishlash rejimi nominal ish rejimi adni turg'un xolatda ishlashi kiritik rejim valda yuklama bo'lgan xolatda nominal moment adni yurgizish momenti kritik moment ad yurgizish asinxronnogo dvigatelni mexanik xarakteristikasiya asinxron dvigatelni ishchi xarakteristikasi dvigatelning yurgizish xarakteristikalari yurgizish tokining qiymati iyu yoki yurgizish tokining nominal tokga nisbati, yahni iyu/ in, yurgiz momenti myu yoki yurgizish momentining nominal momentga nisbati myu /mh hamda dvigatelning to'la va bir tekis yurgizish uchun ketgan vakt bilan aniqlanadi adni yurgizish toki nominal tokka nisbatan 5-7 martakergi katta bo'ladi shuning uchun xam adni dan to'g'ridan-to'g'ri yurgizish uchun kuvvati uncha katta ya'ni 15-20 kvt.gacha bo'lishi shart a a ip in t, sek …

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chun . a) b) v) obrazets teksta vtoroy uroven tretiy uroven chetvertiy uroven pyatiy uroven chastotali boshqarishni davomii qonun bo'yicha chastota uzgarishi: mexanizm uchun: a) o'zgarmas moment ms; b)o'zgarmas quvvat rs; v) ventilyatorli xolat uchun . a) b) v) obrazets teksta vtoroy uroven tretiy uroven chetvertiy uroven pyatiy uroven savollar bo'lsa yozib yuboring,e'tiborli bo'ling e'tiboringiz uchun raxmat image5.png image6.jpeg image7.jpeg image8.emf image9.wmf image10.png oleobject1.bin image11.png image12.jpeg image13.jpeg image14.jpeg image15.png image16.wmf image17.emf oleobject2.bin image18.wmf oleobject3.bin image19.png image20.jpeg image21.wmf image22.wmf image23.wmf image24.wmf image25.wmf image26.wmf oleobject7.bin oleobject8.bin oleobject9.bin image27.emf oleobject4.bin oleobject5.bin oleobject6.bin oleobject13.bin oleobject14.bin oleobject15.bin oleobject10.bin oleobject11.bin oleobject12.bin image3.png 11 xo1 x62 rafs sob qh inq ta a |r zach) | heh pane dvigatelni yurgizishning boshlangich payitida n 2 =0 va s=1 bo'ladi. bu vaqtda, dvigatelda hosil bo'lgan aylantiruvchi moment boshlan g'ich yoki yurgizish momenti deyiladi. agar s=1 ni formulaga qo'ysak yurgizish momentining qiymati quyidagicha aniqlanadi; ])()[(2 2' 21 2' 211 ' 2 …

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lgilanadi. 2 1 u n=nj(1-s) - ekopocts bpalllehhit potopa; 4. kyunana ne ssaees ajerarop xynramure werva-eer peocrar ‘ect mayer "ynaus opxar ccrarop wynraunan roprvanul wants of 1 0 m max 0 1 m s k s n m min s k1 s k2 m c 1 2 3 4 5 p e i 3 s k3 6 i 1 i 2 7 m sk3 i3 e p 5 4 3 2 1 mc sk2 sk1 mmin s n sk m 0 1 mmax 1 0 6 i1 i2 7 v b α = π/2 u α α = 0 ω t ω t m n 0 , 6 u α 0 , 8 u α u α ΰ u σ a vs 2 b ρ θ τ σ m 1 c vs 4 vs 1 vs 3 vs 5 vs 6 vs1 vs5 vs4 m1 uα 0,8uα 0,6uα m n …

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asinxron mashinaning ekvivalent sxemalari asinxron mashinaning ekvivalent sxemalari asinxron mashinaning t ko'rnishidagi ekvivalent sxemasi magnitlovchi konturning uchlaridagi kuchlanish u12=e1=e2 bu sxemada aktiv quvvat isroflari hisobga olinmagan t-paralel yoki ketma-ket ravishda rmg aktiv ko'rinishidagi qarshilik ulanadi. bu qarshilikdagi isroflar mashinaning aktiv quvvat isroflariga teng. asinxron mashinaning g ko'rinishidagi ekvivalent sxemasining magnitlovchi konturi birinchi zanjirning kirishiga ulangan bo'lib, mashinaning magnit oqimini kuchlanishga bog'liqligini to'g'ri ifodalaydi asinxron mashinalarning vektor diagrammasi kuchlanishlar tenglamasi va ekvivalent sxemasi asosida chizilishi mumkin. asinxron dvigatellarning vektor diagrammasi transformotorning vektor diagarammasiga o'...

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