Our ATS panels are designed to automatically changeover from mains electricity supply to stand – by generators on failure of the mains supply . when the main supply is restored, the system automatically changes back and stops the generator . The stand-by generator will eventually shut down after a short cooling down period. A transfer switch’s main function is to redistribute power from a grid to a backup source of power . Generally ,normal power is provided by a utility company . when the primary power source stops working or fails to deliver required load is automatically transferred to generator throught ATS panel. The ATS makes the system automatic nature . Manual transfer s witches are used in normal situations usually at homes . By an automatic transfer switch , power failures are detected immediately and the changeover from utility power to generator power is quite fast.