The excitation system is a key part of large rotating electrical machines such as generators and motors. It provides the power needed to energize the rotor field windings and controls the output voltage of the generator. Without an adequate field current being supplied by the excitation system, a generator would not be able to produce power. https://businessinmyarea.com/news/fall-detection-systems--exciting-advancements-in-power-generation-new-developments-in-fall-detection-systems