@thesis{thesis,
		author={Darmana  Tasdik and Rahman  Taufikkur},
		title ={PERANCANGAN AUTOMATIC CHANGE OVER SWITCH (ACOS) DENGAN PROGRAMABLE LOGIC CONTROLER (PLC)
BERBASIS SCADA},
		year={2017},
		url={http://156.67.221.169/898/},
		abstract={This writing is related to the design of Automatic Change Over Switch (ACOS) with Programmable Logic Controller (PLC) system which can be monitored by Human Machine Interface (HMI) based on Supervisory Control And Data Acquisition (SCADA) system. ACOS is a device that works automatically for the network maneuvering process of two redundant voltage sources to maintain the availability of electricity for the load without having to occur a long outage process due to interference or loss of voltage on the main supply. Supply voltage consists of the main supply (priority) as the best power supply under normal conditions and backup supply (backup). The voltage controlled by the PLC that works digitally based on the presence or absence of a voltage on the main supply that can serve as a sensor and give the command there is a voltage that will melistriki load. The overall work of the PLC can be monitored through signals to be received by HMI by utilizing the SCADA system as a function of data supervision and acquisition. In this project the ACOS prototype is designated at 220VAC voltage with electrical representation at 20 kVAC distribution voltage at PMT start at the main substation, LBS on the distribution substation to Load and will be controlled by Omron CPM1A PLC connected to PC as HMI utilizing EasyBuilder Pro application.}
		}