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济南变频器维修:造成漏保跳闸的原因

浏览量:   来源:www.bcabb.com  作者:宝川

济南变频器维修:软启动器有许多的维护作用,如果流、过电压、过压保护这些。随之工控自动化水平的不断提升,软启动器也获得了十分普遍的运用。


Jinan Inverter Maintenance: Soft starter has many maintenance functions, if current, overvoltage, overvoltage protection. With the continuous improvement of industrial control automation level, soft starter has also been widely used.


变频器造成漏保跳闸原因这由于软启动器的輸出波型带有高次脉冲电流,而电动机及软启动器与电动机间的电缆线会造成泄露电流,该泄露电流比直流驱动器电动机时变大很多,因此造成该状况。


The reason of leakage protection tripping is that the output waveform of soft starter has high pulse current, and the leakage current is caused by the cable between the motor and soft starter. The leakage current is much larger than that of the DC driver motor, so this situation is caused.


变频器操作输出侧的漏电流大约为工频操作时的3倍多,外加电动机等漏电流,选择漏电保护器的动作电流应该大于工频时漏电流的10倍。使用变频器的地方不适合采用具有漏电保护功能的保护开关。


The leakage current of the output side of the converter is about three times as much as that of the power frequency operation. When the leakage current of the motor is applied, the action current of the leakage protector should be 10 times as much as that of the power frequency operation. Where the frequency converter is used, it is not suitable to use the protective switch with leakage protection function.


由于变频器的輸出存有高次脉冲电流,要不是选用的专用型变频电缆和变频电动机,那麼泄露电流是难以避免的,通常就会超出30mAh,使漏电保护器跳电。


Because of the high pulse current in the output of the converter, it is inevitable that the leakage current will exceed 30 mAh and make the leakage protector jump if it is not for the special converter cable and motor.


以上就是济南变频器维修厂家给大家带来的资讯分享,了解更多的相关知识,大家可以关注我们的官方网站!


Above all, Jinan Inverter Maintenance Factory has brought you information sharing, learn more about the relevant knowledge, you can pay attention to our official website!


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