【正文】
uuuuuu ???????? 特點 : ? n0—A段為正常工作階段,電流負反饋被截止,具有轉(zhuǎn)速負反饋靜特性,比較硬; ? A—B段為電流負反饋起作用階段,特性下垂。 挖土機特性 I0 —截止電流 IDW—堵轉(zhuǎn)電流 Ied —額定電流 A —截止點 B —堵轉(zhuǎn)點 46 47 48 作 業(yè) 謝謝觀看 /歡迎下載 BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH