@thesis{thesis,
		author={Husada  Hendrianto and Pratami  Dhira},
		title ={Pengaruh Dari Penempatan Arrester Terhadap Efektivitas Proteksi Transformator 20 kV Pada Tiang Distribusi.},
		year={2021},
		url={http://156.67.221.169/3675/},
		abstract={The placement of the protection system on the distribution transformer, precisely at the portal substation, has two placements, namely the placement of the arrester before the fused cut out and the placement of the arrester after the fused cut out. Both of these placements affect the workings of the arrester. Placement of arresters after fused cut out is a new construction of distribution poles which is being applied to all portal type substations by PLN. The installation of the arrester after the fused cut out can be said to be more effective and can work optimally, because in the event of a lightning strike, the surge wave strikes towards the fused cut out (FCO) where the first one to disconnect is the FCO, so there is a chopin on the arrester. where the lightning surge voltage that enters the transformer is very small and also the transformer safety is very effective. In a 20 kV distribution network, the arrester that is directly hit by lightning has a grounding value of 1.99 ohms after making ground repairs by adding grounding stakes. The arresters used have characteristics where the rated voltage is 24kV, with a nominal discharge current of 5 kA, the TID value for the transformer is 12kV that has been set, and the arrester protection distance is obtained from the protected equipment, namely distribution transformers of 2.754 meters where the arresters must be placed close to each other. with protected equipment.}
		}