Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Fani, Muhammad
Pawenary, Pawenary
Subject
Teknik Elektro
Datestamp
2022-11-07 08:08:35
Abstract :
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-tophase 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.