This paper introduces the characteristic and principle of water resistance soft-start technology and points out it can satisfies the starting of high-voltage large power ac motor.
介绍了水电阻软启动装置的工作原理及特点，应用其可满足大功率交流电机启动的要求。
On starting, this electric motor has high impedance and power factor, low current, and large torque.
电动机起动时阻抗大、电流小、功率因数高、转矩大；
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