装载机在启动时，电机的电流会比额定高5-6倍的，不但会影响电机的使用寿命而且消耗较多的电量。系统在设计时在电机选型上会留有一定的余量，电机的速度是固定不变，但在实际使用过程中，有时要以较低或者较高的速度运行，因此进行变频改造是非常有必要的。
Shandong loader at startup, the motor current will be 5-6 times higher than nominal, not only will affect the life of the motor and consume more power. System was designed on the motor selection will leave a margin, the speed of the

motor is fixed, but in actual use, sometimes you want to run at a lower or higher speed, frequency transformation is therefore very necessary.

装载机变频器可实现电机软启动、通过改变设备输入电压频率达到节能调速的目的，而且能给设备提供过流、过压、过载等?；すδ堋?br /> Shandong loader drive motor soft start can be achieved by changing the frequency of the input voltage equipment to achieve the purpose of energy-saving speed, and give the device to provide overcurrent, overvoltage, overload protection.