变频器安装配线时有哪些注意事项?

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正确答案:

1、在电源和变频器之间,通常要接入低压断路器与接触器,以便在发生故障时能迅速切断电源,同时便于安装修理。

2、变频器与电动机之间一般不允许接入接触器。

3、由于变频器具有电子热保护功能,一般情况下可以不接热继电器。

4、变频器输出侧不允许接电容器,也不允许接电容式单相电动机。

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