The controller case includes stepping motor, self-coupling voltage regulator, alternating-current contactor, relay and micro-transformer.
控制柜主要包括步进电机、自耦调压器、交流接触器、继电器以及微型互感器等。
2
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.