日钢1580mm交-交变频出现的故障及处理方法

Faults and Processing Methods on the Cycloconverter of 1580mm Hot Strip Mill Project of Rizhao Iron and Steel Co.

交-交变频器主要应用于低转速、大容量的场合,日照钢铁1 580mm热连轧工程主传动采用了西门子的交-交变频传动系统。结合日照钢铁1 580mm热连轧工程及作者对现场传动系统的维护经验和处理故障的体会,介绍了交-交变频器传动系统的构成,阐述和分析了常见故障的处理方法,着重描述了R1负荷平衡的应用,以及励磁过电压、三相电压不平衡、三相电流不平衡、脉冲编码器故障现象及其解决方法。

The cycloconverter is mainly used in low speed,high-capacity situations. The main drive of 1 580 mm hot continuous roiling project of Rizhao Iron and Steel Co. uses the cycloconverter drive system from Sie- mens. Combined with the 1 580 mm hot continuous rolling project and author＇s experience of dealing with malfunctions,introduced the constitution of cycloconverter drive system, elaborated and analyzed the treatment methods on normal malfunctions. Focused on describing the application of R1 load balance and the malfunctions of excitation over-voltage, three phase voltage imbalance, three phase current imbalance, pulse encoder fault and the treatment methods for them.