我单位在一座长大隧道上搞了一套全自动控制通风排烟设备。轴流通风机是用110千瓦的鼠龙式电动机拖动,其起动控制设备如采用GJZ型自耦减压起动器是不妥当的,因其起动转换为正常运转是利用时间继电器定时完成的。由于起动时间受多方面因素的影响,如网络电压的波动,在自然风的影响下,风机的状态是正转、反转或停止,环境温度的影响等, My unit in a long tunnel engaged in a set of fully automatic control of ventilation and smoke exhaust equipment. Axial fan is dragged with a 110 kilowatt-long mouse motor, the starter control device such as the use of GJZ autotransformer starter is not appropriate, because the start to switch to normal operation is the use of time relay timing completed. As the start-up time is affected by many factors, such as the fluctuation of the network voltage, under the influence of the natural wind, the state of the wind turbine is forward rotation, reverse rotation or stop, influence of the ambient temperature, etc.,