Saat ini listrik menjadi salah satu kebutuhan primer manusia yang tidak dapat dihilangkan. Keberlangsungan penyaluran energi listrik ke pelanggan menjadi salah satu fokus utama yang harus dijaga agar kualitas pelayanan yang diberikan semakin optimal. Dalam pelaksanaan penyaluran listrik ke konsumen, jaringan distribusi SUTM 20 kV rentan akan gangguan. Dari permasalahan tersebut diperlukan tools, metoda dan Analisa arus hubung singkat sehingga lokasi titik gangguan dapat dipetakan dan memudahkan petugas dalam menemukan penyebab gangguan jaringan SUTM 20 kV. Hasil simulasi arus hubung singkat menggunakan aplikasi ETAP 12.6 berupa nilai arus gangguan serta estimasi lokasi gangguan pada penyulang KKR 01. Hasil perbandingan nilai arus hubung singkat Gangguan 3 Fasa pada Jarak 0 kms sebesar 18%, jarak 6,71 kms sebesar 17% dan jarak 11,2 kms sebesar 14%. Gangguan 1 Fasa ke Tanah pada Jarak 0 kms sebesar 6%, jarak 6,71 kms sebesar 6% dan jarak 11,2 kms sebesar 7%. Gangguan Fasa-Fasa pada Jarak 0 kms sebesar 11%, jarak 6,71 kms sebesar 6% dan jarak 11,2 kms sebesar 2%. Gangguan 2 Fasa ke Tanah pada Jarak 0 kms sebesar 17%, jarak 6,71 kms sebesar 13% dan jarak 11,2 kms sebesar 9%. Hal ini disebabkan karena adanya perbedaan akurasi pengolahan Data di Aplikasi dan Metoda Perhitungan manual. Semakin dekat Jarak Gangguan dengan Pangkal Jaringan maka nilai Arus Hubung Singkat Semakin Besar. Semakin jauh jarak Gangguan dengan Pangkal Jaringan maka nilai Arus Hubung Singkat semakin kecil. Dalam kondisi real, Arus Hubung Singkat pada setiap gangguan dapat berubah-ubah tergantung kondisi beban juga Impedansi Gangguannya itu sendiri.

Currently, electricity is one of the primary human needs that cannot be eliminated. The continuity of the distribution of electrical energy to customers is one of the main focuses that must be maintained so that the quality of service provided is more optimal. In the implementation of electricity distribution to consumers, the 20 kV SUTM distribution network is vulnerable to interference. From these problems, tools, methods and short circuit current analysis are needed so that the location of the fault point can be mapped and make it easier for officers to find the cause of the 20 kV SUTM network disturbance. The results of the short circuit current simulation using the ETAP 12.6 application are the value of the fault current and the estimated fault location on the KKR 01 feeder. The results of the comparison of short circuit current values of 3-phase fault at 0 kms distance is 18%, 6.71 kms distance is 17% and 11.2 kms distance is 14%. 1 Phase to Ground Fault at 0 kms distance is 6%, 6.71 kms distance is 6% and 11.2 kms distance is 7%. Phase-to phase interference at a distance of 0 kms is 11%, at a distance of 6.71 kms is 6% and a distance of 11.2 kms is 2%. 2-Phase to Ground Fault at 0 kms distance is 17%, 6.71 kms distance is 13% and 11.2 kms distance is 9%. This is due to differences in the accuracy of data processing in the application and manual calculation methods. The closer the Interference Distance to the Network Base, the greater the Short Circuit Current value. The farther the distance from the fault to the network base, the smaller the value of the short circuit current. In real conditions, the short circuit current at each fault can vary depending on the load conditions as well as the fault impedance itself.