A GCU is installed for each ac generator. The GCU circuits are regulator, generator relay controls, contactor relay controls, feeder fault, overvoltage sensing, undervoltage sensing, underfrequency, and overfrequency sensing sections. Each GCU monitors and controls generator output parameters. The GCU provides voltage regulation, controls the generator output voltage, and protects the generator from frequency and current malfunctions.
According to this study, over the next five years ... Read more