Under the cut-in wind speed, the computer controls soft-cut-in network while the maincontactor is delayed in action, then the wind turbine is getting into normal performance as generator.
它是在风动力作用下，由计算机控制软并网，然后主接触延时接通，实现正常发电运行。
2
Temperature relay tests temperature of motor, if it exceeds rating temperature to send a signal, contactor cut off main circuit to complete protection of motor.
温度继电器检测电动机温度，超过额定温度发出信号，接触器切断主电路，完成电机保护。
3
Based on the model, the influence of the main circuit on the temperature rise of ac contactor was researched.