Self-excitation and over-voltage caused by generatorloadrejection with long lines occurs because of the capacitive current has a function to help the magnetic excitation of the generator.
发电机带长线路甩负荷时,因容性电流对发电机产生助磁作用从而使发电机发生自励磁和过电压。
2
The performances of excitation control system must fit all the different operation conditions of generator, such as no load operation, loading, load rejection and different kinds of faults.