摘  要：本文着重介绍普传科技PI500系列变频器在某钢厂钢铁热连轧变频改造项目中的应用。改造完成后，变频调速软起动特性减少了对机械设备和电网的冲击，实现节能运行提高生产效率及工艺水平，生产线运行稳定，维护成本大大降低。 关键词：变频器；钢铁；轧机 Abstract: This paper mainly introduces the application of the POWTRAN technology PI500 series inverter in the transformation project of steel and steel heat rolling in a steel mill.After the completion of the renovation, frequency control of mot[登陆后可查看全文]