O’zbekiston respublikasi oliy va o’rta maxsus ta’lim vazirligi islom karimov nomidagi toshkent davlat texnika universiteti olmaliq filiali fakultet: Kafedra: Fan: mustaqil ish mavzu: 3-fazali elektr zanjirlari bajardi: tekshirdi: qabul

Rang kodlari

Uch fazali tizimning o'tkazgichlari odatda rang kodi bilan aniqlanadi, bu muvozanatli yuklashga imkon beradi va to'g'ri fazali aylanishni ta'minlaydi motorlar. Amaldagi ranglar Xalqaro standartga rioya qilishi mumkin IEC 60446 (keyinroq IEC 60445), eski standartlar yoki umuman umuman yo'q va hatto bitta o'rnatishda ham farq qilishi mumkin. Masalan, AQSh va Kanadada tuproqli (tuproqli) va asoslanmagan tizimlar uchun turli xil rang kodlari qo'llaniladi.

Xulosa:

Uch fazali elektr energiyasining keng tarqalgan usuli hisoblanadi o'zgaruvchan tok elektr energiyasi avlod, yuqishva tarqatish. Bu turi polifaza tizimi va ishlatilgan eng keng tarqalgan usul elektr tarmoqlari quvvatni uzatish uchun butun dunyo bo'ylab. Biz, shuningdek, katta kuch uchun ishlatiladi motorlar va boshqa og'ir yuklarni o’rgandik.

1. 
    William D. Stevenson, Jr. Elements of Power System Analysis Third Edition, McGraw-Hill, New York (1975). ISBN 0-07-061285-4, p. 2018-04-02 121 2
   
2. 
    Terrell Croft, Wilford Summers (ed), American Electricians' Handbook, 11th ed., McGraw Hill, 1987 ISBN 0-07-013932-6page 3-10 figure 3-23.
   
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    Cotton, H, Elektr texnologiyasi, 6th Ed., Pitman, London, 1950, p. 268
   
5. 
    von Meier, Alexandra (2006). Electric Power Systems. Hoboken, New Jersey: John Wiley & Sons, Inc. p. 160. ISBN 978-0-471-17859-0. We also stated one rationale for this three-phase system; namely, that a three-phase generator experiences a constant torque on its rotor as opposed to the pulsating torque that appears in a single- or two-phase machine, which is obviously preferable from a mechanical engineering standpoint.
   
6. 
    Hawkins Electrical Guide, Theo. Audel and Co., 2nd ed., 1917, vol. 4, Ch. 46: Alternating Currents, p. 1026, fig. 1260.
   
7. 
    Hawkins Electrical Guide, Theo. Audel and Co., 2nd ed., 1917, vol. 4, Ch. 46: Alternating Currents, p. 1026, fig. 1261.
   
8. 
    (PDF). 2017 yil 30-avgust https://web.archive.org/web/20170830033252/http://www.rle.mit.edu/per/ConferencePapers/cpConvergence00p583.pdf. Arxivlandi asl nusxasi (PDF) 2017-08-30 kunlari. Yo'qolgan yoki bo'sh sarlavha = (Yordam bering)
   
9.