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O‘zbekiston respublikasi oliy va o‘rta maxsus ta’lim vazirligi andijon mashinasozlik instituti
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| bet | 3/26 | | Sana | 21.02.2024 | | Hajmi | 99,07 Kb. | | #160223 |
Bog'liq Va o‘rta maxsus ta’lim vazirligi-fayllar.org__________________________________________________________________
4. Ishning salbiy tomonlari________________________________________
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Tushuntirish xatini rasmiylashtirish_________________________________
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6. Ishning grafik qismini rasmiylashtirish_________________________
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Xulosalar___________________________________________________________________________________________________________________________
Taqrizchi ________________________________________________________ (imzo, familiyasi, ismi, sharifi)
Lavozimi__________________________________________________________
Ish joyi__________________________________________________________
«______»_______________________ 2022 yil
Mundarija
I.Kirish. ………………………………...…………………….......…….…..…..5
1.Kurs ishini bajarish uchun boshlang‘ich ma’lumotlar va ularni tahlil
qilish………………..........………………………………………………..........6
1.1Oʻzgartgichni sovutish shartlari…………………………………….…......10
1.2. Yuklamaning hisoblangan toki………………………………………...…11
1.3 Yuklama zanjirining parametrlari…………………………………….…...11
2.Moslashtiruvchi transformator yoki cheklovchi reaktorni tanlash………….11
2.1Toʻg‘rilagichning tarmoq bilan bog‘lanish koʻrinishini tanlash..................11
2.2 Moslashtiruvchi transformatorni tanlash va tekshirish……………………13
3.Sozlash tavsifini hisoblash………………………………………………….15
4. Silliqlovchi reaktorni tanlash ………………………………………………16
4.1Yuklamaning zarur induktivligi…………………………………………...16
4.2Boshqariluvchi toʻg‘rilagichning tashqi tavsiflarini qurish………………..17
5. Ishchi va avariya rejimlarini hisoblash………………………………….….18
5.1 Oʻzgartgichning ishchirejimi………………...…………………………...18
5.2 Oʻzgartgichning avariya rejimi……………………………………………20
6.Kuch oʻzgartgich ventillarini tanlash va tekshirish…………………….…...21
6.1Diod va tiristorlarni avval tanlash va hisoblash…………………………...21
6.2 Faza yarim oʻtkazgichli qurilmalarini tekshirish………………………….23
6.3 Oʻzgartgichning tok boʻyicha ruxsat beriladigan oʻta yuklanishlarini
Hisoblash..………………………………………………………………….…25
7. Toʻg‘rilagichning apparatlari va himoya elementlarini tanlash…………....27
7.1 Oʻta yuklanish avariya yuklanishlaridan avtomatik oʻchirgichlarbilan
himoyalash…………………………………………………………………….27
7.2Eruvchan saqlagichlar bilan himoya............................................................30
7.3Ventillarni oʻta kuchlanishlardan himoyalash………………………….….31
7.4Ventillarni toʻg‘ri tokning katta tezlikda oʻsishidan himoyalash……….…32
8. Oʻzgartgichning energetik tavsiflari...………………………………….…..32
8.1Foydali ish koeffitsienti................................................................................32
8.2 Quvvatkoeffitsienti…………...…………………………………………..34
9. Oʻzgartgichni boshqarish tizimini ishlab chiqish……………………….….36
9.1Boshqaruvchi impulslar parametrlari va oʻrinbosar sxemani aniqlash.......36
9.2SIFU elektr sxemasini ishlab chiqish……………………………………...40
II.Xulosa……………………………………………………………………....45
III.Ilova…………………………………………………………………….….46
IV.Adabiyotlar…………………………………………………………….…..49
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