Operation modes of Alternator or generator – Grid mode & Island mode
An alternator or generator generates power might be used to supply either two purpose. The first is to supply power directly to the load or to consumer. The second one is to supply power to the grid. As example in case of power plant or power station several alternator supplies power to the grid, there is no direct consumer. Operation modes of Alternator When the alternator supplies power to the load or consumer directly, the criteria of the load affects the alternator. We cannot control the load (KW or MW) and power factor but the terminal voltage and frequency can be controlled. This is called ISLAND mode.