@thesis{thesis, author={RACHMANDANU FACHRY and Sari Dewi Purnama}, title ={RANCANG BANGUN FAST ATS (AUTOMATIC TRANSFER SWITCH) DALAM MENJAGA KEANDALAN PASOKAN LISTRIK DI KTT G20 BALI}, year={2022}, url={http://156.67.221.169/5394/}, abstract={PLN maintains electricity supply at the G20 Summit by preparing supplier substations equipped with Automatic Transfer Switch (ATS). Fast ATS is installed for automatic switching of power supply to avoid Undervoltage . This study aims to design the work system and reliability of the electrical network system from Fast ATS. The design process goes through the stages of planning, designing and testing tools. The results of this study are fast ats system with reliability results. The results of the test with an average transfer time for CB1 to CB2 of 100.6 ms. The average transfer time from CB2 to CB3 is 99.3 and the average time to transfer from CB3 to CB1 is 94.6. And the average displacement between CB1,2 and 3 is 98.1 which is set not more than 200 ms. In the test results, it can be concluded that Fast ATS can automatically move the main PLN voltage source to the PLN standby voltage source for a fraction of a second.} }