ABB 3BHB004661R0001 KUC711AE｜Power Supply Control Unit｜

Function
Excitation thyristor drive/power rectification unit: equipped with UNITROL5000/UNITROL6000 excitation cabinet, three-phase thyristor trigger, rectification and voltage regulation, controlling the excitation current of the generator rotor and stabilizing the terminal voltage;
Integrated power circuit+gate driver: built-in high-power thyristor terminal block, pulse trigger circuit, integrated hardware protection for overcurrent, short circuit, overheating, and phase loss;
Unit power management: auxiliary power supply for excitation power cabinet, power circuit monitoring, fault contact output to excitation main control board.

Parameter
Input: Three phase AC (excitation transformer secondary side, conventional 230-415VAC)
Output: DC excitation voltage (suitable for synchronous generator rotor winding)
Working environment: -20 ℃~+60 ℃, cabinet installation, IP20 protection
Structure: Red shell power terminal+bottom plate installation type, fixed with guide rails/cabinet bolts
Power consumption: typical 5~8W (control circuit), the main circuit matches the unit capacity with the excitation power

Application
Thermal power/hydropower/wind turbine generator sets: synchronous generator UNITOL excitation cabinet comes with a standard power unit (most commonly used);
Self owned power plant and diesel generator excitation renovation;
Industrial synchronous motor excitation speed control system (large compressors, steel rolling motors).

ABB 3BHB004661R0001 KUC711AE｜Power Supply Control Unit｜