电机与拖动基础试题库及答案（改）

3?23802?0.072/0.02??727.68N?m

0.0722??2??50?(0.072?)?(0.2?0.2)2?0.02??3?2?3802?0.072Tst??1098.64N?m222??50(0.072?2)?(0.2?2)??

起动转矩倍数：

Y/△起动时的起动电流、起动转矩：

KM?Tst1098.64??1.51TN727.68I'st? Tst'?

Ist?3?893.84??516A 33Tst1098.64??366.2N?m 33