@thesis{thesis, author={Soewono Soetjipto and Syahputra Reggy Anjas}, title ={ANALISIS MODIFIKASI PENTANAHAN LANGSUNG PADA MENARA SALURAN UDARA TEGANGAN TINGGI 150 KV PULOGADUNG - PENGGILINGAN TERHADAP TERJADINYA BACK FLASHOVER}, year={2018}, url={http://156.67.221.169/776/}, abstract={Electric power distribution is performed by using high voltage transmission (HV) that are prone to lightning strikes. In addition to cartilage of the lightning strikes, the location of the transmission tower are different, so is the value of the grounding resistance. The impact caused by a lightning strike occurrence of a back flashover. The phenomenon of back flashover is a disorder in the high voltage transmission (HV) caused by a direct lightning strike on the ground wire and the tower, which can radiate to the phase wire through the insulator. A back flashover will occur when the voltage on the insulator is greater than or equal the critical flashover voltage of the insulator so that fire jumps occur on the insulator. Modification of grounding instantly without touching the body of the tower, performed on 6 of the 14 towers in the air channel high voltage (HV) Pulogadung ? Penggilingan can be one way to reduce the value of grounding a combination of towers that can minimize the occurrence of a back flashover. For a total back flashover occurance before the modifications of the direct grounding its range between (0,0304 ? 0,0594) disorders/100 km/year, after the modifiioncat grounding the value range between (0,0226 ? 0,0270) disorders/100 km/year. This means that it fixes the value of (13,7254 ? 59,0579) %, to minimize the occurrence of back flashover.} }