jkwithe man-machine dialogue interface of the series reactive power automatic compensation controller adopts led large-screen display, which is suitable for wider ambient temperature, five-button design, flexible and convenient control, reactive power compensation interface has two standard modes, 12 channels (a/b) type output or 32-channel rj45 serial output, to meet the needs of different configurations, no need to replace the controller, the temperature/voltage/harmonic protection output can be selected arbitrarily or all, providing security for the system.