1746-NO8I

2.低運行頻率：即電機運行的小轉速，電機在低轉速下運行時，其散熱性能很差，電機長時間運行在低轉速下，會導致電機燒毀。而且低速時，其電纜中的電流也會增大，也會導致電纜發熱。

3.高運行頻率：一般的變頻器大頻率到60Hz，有的甚至到400 Hz，高頻率將使電機高速運轉，這對普通電機來說，其軸承不能長時間的超額定轉速運行，電機的轉子是否能承受這樣的離心力。

4.載波頻率：載波頻率設置的越高其高次諧波分量越大，這和電纜的長度，電機發熱，電纜發熱變頻器發熱等因素是密切相關的。

5.電機參數：變頻器在參數中設定電機的功率、電流、電壓、轉速、大頻率，這些參數可以從電機銘牌中直接得到。

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