@thesis{thesis,
		author={FRANSISKO  KRISPALDI and Tambunan  Juara Mangapul},
		title ={STUDI PENGGUNAAN KERTAS KRAFT TERHADAP PENGUJIAN BREAKDOWN VOLTAGE DAN WITHSTAND TEST ISOLASI KERTAS TRANSFORMATOR 20 kV DALAM KONDISI KERING DAN BASAH},
		year={2022},
		url={http://156.67.221.169/5298/},
		abstract={This study discusses the use of kraft paper which is used as an insulating medium in
transformers because the need for electrical energy is increasing over time. The quality
of electrical energy distribution needs to be considered based on the performance of the
transformer in work because the reliability of the transformer is very influential in
supplying electrical energy to customers. To avoid damage, it is necessary to pay
attention to the use of insulating media as a protector. The research that has been done
is about discussing the thickness of the kraft paper insulation with the increase in the oil
temperature level and the length of soaking the paper in oil on the breakdown voltage
value. The results showed that the paper thickness of 2.5 mm in dry conditions had an
effect on increasing the breakdown voltage value of 20.05 kV/mm with a dielectric
strength of 80.02 kV/cm. Meanwhile, the use of paper thickness with oil immersion and
the increase in the oil temperature level at an average of 60°C also greatly affects the
non-linear increase in the breakdown voltage value. Paper insulation on oil at a
temperature of 70°C tends to experience a decrease in the breakdown voltage value,
which is caused by paper cellulose which is getting worse due to the increase in
temperature and due to contact with air being one of the causes of insulation failure. The
greater the breakdown voltage value, the insulation will work well on a capacity
transformer 20 kV}
		}