1 Which factors affect the choice of motor ?
2 What are the continuous rating, short-time rating and intermittent short-time rating of motor ?
3 How does temperature rise change when motor is operating ? Explain.
4 Why is the operating temperature of a machine closely associated with its life expectancy ?
5 What are the characteristic features of various cooling means for Electric Machines ?
本文关键字：电动机 变频器基础，变频技术 - 变频器基础
上一篇：风机水泵变频调速节电原理
