DR-30-24
DR-30-24
DR-30-24
针对这两次调试情况和变频器产生干扰及干扰的途径,我们联合电源滤波器生产厂商的工程师进行了分析总结,并与北京康拓生物工程有限公司的工程师多次进行了电话沟通,了解了其工作原理、布线情况,分析认为主要还是变频器输入端产生的高频谐波造成的干扰。因装变频器后,变频器的输入线在原动力线槽内,而输出线不在线槽内,离电机也比较近。再者,原布线系统不太合理,动力线槽与控制线槽距离较近,只有20cm,按规定应不少于50cm,且两线槽平行走线,这些都是比较忌讳的。变频器的地线接的也不太合理,接在了电源线的走线槽上,线槽的作用一是支撑电源线、二是起屏蔽的作用,变频器的干扰又通过地线到了线槽上。变频器产生的高次谐波通过变频器的输入线和地线辐射到其它设备的电源线和信号线上(尤其是比较敏感的传感器的信号线。这里强调一点:我们的变频器与DCS控制系统不是同一台变压器给电,可以排除直接传导干扰),干扰了控制系统的正常工作。
备货,备货,降降降,火火火,火火火……
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公司名称:厦门泰尼电气有限公司
联系人:小黄(销售代表)
联系电话:0592-6809319
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