Предмет: Физика, автор: sashasahx0n

У трифазну трипровідну мережу
включили "трикутником" різні за
характером опори.
Лінійна напруга Uном=127 В.
Визначити фазні струми, кути зсуву фаз,
потужності кола.
RАВ=10 Ом
RBC=8 Ом ХВС=6 Ом
RCA=10 Ом

Побудувати у масштабі векторну діаграму, з якої визначити значення лінійних струмів
ІА, ІВ, ІС.

Приложения:

Ответы

Автор ответа: lvv9136

Ответ:

Объяснение:

Rab=10 Oм;

Rbc=8 Oм;

Rca=10 Oм;

Xbc=6 Oм;

Uном=127 B;

Іab, Іbc, Іca ? Uac=127 B; Ubc=127 e^j120°; Uab=127 e^-j120°;

Іab=Uab/Rab=127 e^-j120°/10=12,7e^-j120°=12,7cos(-120°)+j12,7sin(-120°)=

(-6,35-j11) A;

Ibc=127 e^j120°/(Rbc+jXbc)=127 e^j120°/(8+j6)=127 e^j120°/(10e^j36,7°)=

12,7e^j83,3°=(1,48+j12,61) A;

Іca= Uac/Rca=127/10=12,7 A

Приложения:

sashasahx0n: спасибо можешь помочь ещё с одной задачей?

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