The MSCHA type high-voltage automatic reactive power compensation device automatically switches capacitor banks connected in parallel to the 3~20kV busbar of the distribution transformer in steps, based on the reactive load condition of the transformer, to provide corresponding capacitive reactive power. The device adopts a modular unit design, with each step forming an independent circuit and each circuit housed in a separate cabinet. The number of cabinets (circuits) can be expanded to increase capacity. Series reactors suppress harmonics and inrush currents, while step-by-step switching significantly improves the busbar power factor and stabilizes it at a certain level, thereby stabilizing the system voltage and enhancing transformer utilization.

- Features

1). Modular assembled cabinets with concave-convex door structures allow components to be installed and adjusted in modular positions, offering a strong three-dimensional appearance and high mechanical strength.

2). An advanced power factor controller enables graded step-by-step switching, automatically tracking reactive power demand with rapid and precise compensation.

3). Equipped with an ABB compact PLC control system, it supports seamless manual and automatic switching, ensuring full automation and high reliability.

4). Expulsion-type fuses provide protection for individual capacitors, with independent insulated compartments ensuring no phase-to-phase or phase-to-ground arcing after operation and tripping.