Low-voltage reactive power compensator (hereinafter referred to as compensation cabinets) are used for reactive power compensation in low-voltage power grids to improve the power factor of the grid, reduce line losses and improve power quality.
The compensation cabinet uses an intelligent reactive power controller as its core and a contactor or semiconductor electronic switch as the capacitor bank's switching device to automatically switch the capacitor according to the grid's power factor, ensuring that the grid always maintains a high power factor in line with standards.
It is mainly used in low voltage distribution rooms, in parallel with distribution panels, for centralised compensation of system reactive power, improving power factor, reducing system reactive power loss and improving power quality.