Предмет: Физика, автор: vvlad12312344

Трансформатор має номінальну потужність S,- 300 в А. Коефіцієнт Трансформації к-3, номінальна напруга первинної обмотки U=240B. Визначити номінальні струми обмоток та номінальну напругу вторинної обмотки.

Ответы

Автор ответа: svjatoslawnechipor65

Ответ:

Дано:

Р=300 В*А=300 Вт;

k=3;

U1=240 B.

Знайти І1, І2, U2.

Рішення.

Р=U1*I1, звідси І1=Р/U1=300/240=1,25 A.

U1/U2=k, звідси U2=U1/k=240/3=80 B.

P=I2*U2, звідси І2=Р/U2=300/80=3,75 A.

Объяснение:

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