Generator Cooling System
Generator Cooling System Air cooled generator In generator large amount of heat is generated and is not possible to dissipate this heat from natural system. So forced air cooling system is adopted. In this air is forced into the generator due to which large amount of heat is removed. Air is forced circulated inside generator. This air is pick up the heat from conductors of the generators and further air is cooled in a heat exchanger in which cooling water is flowing. In generator small ducts are provided in which air is flowing. The heat dissipation with air cooling system is limited. It is used in small size generator. This system is some limitations like it is not possible to used in a large size of generator. The air should be clean and free from dust & moisture (So instrument air is supplied through a line). There is an optimum rating of the generator beyond which air cooling system is not economical because of air have a limit of heat for heat transfer.