想知-大匹數的摩打在行星角起動時,會有電阻,一頭接上電源,一頭接上星形索制(即行Y時,摩打的線尾)
想知點解要接上電阻,有咩用,及运作原理......
2007-01-21 18:26:10 · 1 個解答 · 發問者 hong tai 2 in 科學 ➔ 其他：科學
One of the reasons is to limit the surge current on starting up the motor, otherwise there is risk of burning the motor coils.
2007-01-22 16:24:30 · answer #1 · answered by 天同 7 · 0⤊ 0⤋