This machine adopts Delixi air switch as the main power control component, Chint high-performance silver contact AC contactor as the main circuit starting element, Chint relay as the fully automatic start-stop control pump operation, Chint time relay as switching start Components: Delixi control transformer is used as the low-voltage control component, high-precision power meter and mutual inductance ammeter are used as power supply current monitoring components, and the control cabinet door is equipped with a universal transfer switch knob, control signal lamp and power indicator light.