Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
Primadani, Citra Ayu
Erlina, Erlina
Subject
Teknik Elektro
Datestamp
2019-12-19 11:53:32
Abstract :
PLN (State Power Plant) as the main electricity source is not always continuous in distribute electricity. Therefore, PT NAGA Swalayan which is a daily necessity shopping center that requires reliable electrical energy by becoming a
customer of low voltage premium type 131 kVA with a basic electricity tariff of B- 2 (Medium business). This silver type premium subscription use 2 different feeder sources, 2 transformers and 1 substation. Premium services use Automatic Change Over Switch (ACOS) that works as an
automatic transfer switch when electrical interference happened. The effect of using this tool is that customers can get supplies from PLN continuously, so the electricity supply is guaranteed. The quality of the ACOS also need to be
considered from the transformator load, At JW 94 substation, the percentage of transformer load before being loaded by the customer is 29,38% and after being loaded by the customer is 40,66%, and at JR 1 Substation is 32,10%. In this load test, it found that the quality of the transformer is very good and good to use because the value less than 80% or not overload.