同时也对变频起动过程中加装低频过流保护的必要性以及该保护的应用提出了见解。
The necessity and the application of over current protection during start-up course are discussed.
具有特高的起动转矩和良好的低频特性，特别适用于有冲击负荷的场合，在这种场合下使用比一般电机节电。
With very high locked-rotor torque and excellent performance in low frequency, it is suitable for situation with shock load to save power.
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