西门子产品6ES7305-1BA80-0AA0

6ES7305-1BA80-0AA0结合 PWM变频器驱动系统在投入正式运行时的效果，整个变频电机的轴承损伤问题会越来越严重，甚至经常会出现轴承损伤、振动过大等问题。某高速线材厂内一台 690kW的变频电机在投入使用之后，短短 3个月的时间，就已经开始出现振动严重等问题。针对该问题进行故障诊断和维修时，将电机下线解体，发现轴承的表面灼点较多，同时这些灼点也较为明显，究其原因是由于轴电流的影响，导致电机轴承受到严重的损伤。

　　结合实例展开分析时，某冷轧厂内部现有一台 250kW/400V/430A的变频电机系统在运行时，已经连续出现烧器件故障问题。针对该变频器展开检修处理时，提前对电机展开 V/F的控制空载试验操作，根据试验结果，发现电机在 7至 30Hz的范围内，电流呈现出异常情况，更为重要的是三相电流的幅值有明显的震荡，高的震荡电流幅值可以达到 700A。在该故障问题出现之后，相关检修人员立即针对该现有的相同类型电机、变频器等展开试验处理，根据试验结果，发现同样频率范围内的电机以及变频器都存在不稳定等问题 。

LANDA PRESSURE WASHER HOT WASHER BALDOR 230 V 3-PHASE 

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