When the power machines of wind-tunnel work such as alternating-current machine governor and direct-current machine governor and relay, they will bring about strong interference.
风洞中交流电机调速器、直流电机调速器及继电器等动力设备运行时将产生强干扰。
2
The practice shows that LOGO control is simple, reduces electricity fault rate and is worth extended by contrasting LOGO control to direct-currentrelay control.