Mavzu: Kabellarning kesim yuzasini kuchlanishi yo’qotilishi bo’yicha xisoblash

Mavzu:Kabellarning kesim yuzasini kuchlanishi yo’qotilishi bo’yicha xisoblash

Bajardi 401-20 EE guruh talabasi Fayziyev Fayyoz

Kabel keisim yuzaining kuchlanish yo’qolishiga bog’lanishi

Asosan kuchlanish yani toki kabellarning sirt yuzasidan oqadi shuning uchun bizga kabelning yuza qismini hisoblash kerak bo’ladi

Katta kuchlanishga moslangan kabellar yaxlit bitta yuzali yoki ko’plam mayda yuzali kabellardan tashkil topadi

Kuchlanishni yo’qotilishi asosan kabellarning qarshiligiga bog’langan bo’ldi

Qarshilikning formlasi R=p(l\S)

Ushbu formuladan ko’rinadiki qarshilik yuzaga teskari proporsional yani yuza ortsa qarshilik kamayadi

Kuchlanishi yo’qolishi yani isrof . Isrofning ko’payishi liniyaning uzunligiga va simning o’tkazuvcanligiga bog’anai sh sababdan har qanday leniyaning ham o’z uzatiliash masofasi bormasofa qancha uzun bo’lsa isrof ham shuncha ko’payadi .Isrof liniyaning qizishi sababdan kelib chiqadi qizish o’z o’zidzn qarshilik va tok kuchining kvadratiga to’g’ri proporsional

Bu jadvalda mis va alyuminiy simlarning quvvatga va tokiga qarab qanday qalinlikdagisini tanlashi ko’rsatilgan