Kondensatorli aralashishning baholashini o'zroq va kabeleli elektr chiqaruv liniyalari uchun

Maydon: Xato tahlili

China

Kondensatorli arusning asosiy o'zgaruvchilari kuchlarning uzunligi, ishlab chiqarilgan materialning kesma maydoni, dielektrik sabit, yerga nisbatan balandligi va reyting voltajiga bog'liq. Aniq hisoblash usullari quyidagicha:

Yuklama liniyalari kondensatorli arusining hisoblanishi: 3 - 35 kV yuklama liniyalari uchun har bir fazadan yerga qarab 5000 - 6000 pF/km bo'lgan kapasitet. Bu asosda, turli voltaj darajalaridagi liniyalarni kilometr ko'rsatkichida hisoblash mumkin.
Kabele liniyalari kondensatorli arusining hisoblanishi: Kabele liniyalari kondensatorli arusi yuklama liniyalari kiyinroq bo'lib, alohida hisoblanishi kerak. Uning qiymati kabelning kesma maydoni, tuzilishi va reyting voltajiga asosan aniqlanadi.
Bir ustunga ikki liniya orqali o'tkazilayotgan liniyalarning kondensatorli arusining hisoblanishi: Bunday liniyalarning kondensatorli arusi bitta liniyaning arusining ikki barobar emas. Bitta liniya kabi ekvivalent hisoblanganda, formulasi quyidagicha: Ic = (1.4 - 1.6)Id (bu yerda Id - ikki liniya orqali o'tkazilayotgan liniyalarning bitta liniyasining uzunligiga mos keladigan kondensatorli arus). Doimiy qiymatlarni voltaj darajasiga qarab farqlantirish kerak: 1.4 - 10 kV liniyalari, 1.6 - 35 kV liniyalari uchun.

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