A.T.S transfers the power supply source either from main to emergency
or emergency to main in cooperation with control system.
The application of A.T.S in the emergency power system will be
varied depending on the emergency power supply facilities.
The emergency power supply facilities are as follows:
Battery system capable of supplying a minimum 30 minutes back up power.
Dual back up system which is equiipped with battery system (capable of supplying a minimum 10 minutes back up power) and the generator facility.
Generator facility.
The primary emergency back up power facility.