The excitation device is an electrical control device that controls and adjusts excitation current besides excitation power in excitation systems of hydro generator. According to different specification, type and operating requirement, it consists of regulating panel, control panel, de-excitation panel and rectifier separately. It also has significant influence and effect on the safe and stable operation of the power system and the generator itself. LH Energy can offer both Brushless and Static Excitation system for generators upto 25MW unit capacity.