烧结主抽风机电动机变频调速改造及故障处理

Variable-frequency Variable-speed Reform of Sintering Main Exhaust Fan Electric Motor and Faults Treatment

阐述了大功率电动机串液态电阻降压启动的优、缺点.在保留原有液态电阻降压起动作为备用起动方式基础上,采用了西门子高压变频交流调速技术,对烧结机主抽风机大功率同步电动机的起动及控制系统进行升级改造,并对运行中出现的故障进行跟踪分析.

The advantages and disadvantages of the series liquid resistance voltage dropping start of the high power motor are described.On the basis of retaining the original liquid resistance voltage dropping start as a standby starting mode,Siemens high-voltage variable-frequency AC variable-speed technology is adopted.And the starting and control system of the high-power synchronous motor of the sintering main exhaust fan are upgraded and modified.The faults occurred in the operation are tracked and analyzed.