Abstract :
The existence of electrical energy is already something of a primary need in modern
human life so that almost all people rely on electricity supply from PLN. It can not be denied
that the availability of electrical energy from PLN can be guaranteed 100%, many obstacles
that cause cessation of electricity supply to consumers. Both the system generator and the
distribution network system, Based on the above background, the author tries to create a
system that can provide the needs in electrical energy. In the hope that this system can be
useful to the general public. Making this ATS Has been done for 4 months in the Department
of Electrical Engineering is the focus of this ATS discussion is UPS. The current supplying
the UPS load is capable of storing the current when PLN is turned on and when PLN is
turned off it can supply current to the load and Provide 60 seconds of time to immediately
turn on the generating set instead of electricity from PLN. Provide ample time to immediately
back up and secure [OS] (OS) by performing a shutdown according to the procedure when
the main power outages.