@thesis{thesis,
		author={Sari  Dewi Purnama and Susant  Wely},
		title ={RANCANG BANGUN PROTOTYPE SISTEM KONTROL AUTOMATIC CHANGE OVER SWITCH UNTUK GARDU SST 4 BHS BANDARA SOEKARNO HATTA},
		year={2023},
		url={http://156.67.221.169/5965/},
		abstract={The need for electrical energy is a vital need that cannot be separated from all aspects
of life. For the continuity of the supply of electrical energy, an additional or backup
energy source is needed along with a control system that is able to take over the load
automatically, especially for Bagage Handling electrical loads which are nonextinguishable at Soekarno Hatta International Airport. Design of an Prototype
Automatic Change Over Switch control system for the SST 4 BHS Substation at
Soekarno Hatta Airport. In his research, the Arduino Mega controller system was used
as the processing of the system which has the function of changing over loads from a
stepdown transformer to a UPS or Genset supply as a backup power supply. The results
of the reliability analysis of ACOS LV loads using back up power sources of 2
transformers, ups and generators obtained a supply failure probability of 0.25 which is
still the same as the old system because the load can still tolerate blackouts. The results
of the reliability analysis of ACOS priority loads using back up power sources of 2
transformers, ups and generators obtained the probability of failure of the supply of
BHS loads of 0.0625.}
		}