Publication Date: 2021/08/13
Abstract: A common problem in electrical power distribution systems is short circuit. Protection systems that work efficiently can immediately isolate the affected power grid from the short circuit before resulting in a worse impact. The protection equipment is a Circuit Breaker, with good specifications of course Circuit Breaker can work efficiently in protecting electrical power equipment in operation. This study aims to find out the specifications of Circuit Breaker in protecting 60 MVA power transformers, with a voltage of 150/20 kV at Isimu Substation. This study was conducted by calculating short circuit current using unit method per unit, performing calculation of more current rele settings and simulating from ETAP software, as well as comparing the results of manual calculations with results from ETAP software simulations. From the results of the research obtained, the large flow of short circuit disturbances that occur in each refiner operating in isimu substation, know the value of the current rele setting more, as well as know the factors that affect the specifications of the power breaker in protecting the 60 MVA power transformer at isimu substation.
Keywords: Sistem Proteksi, Circuit Breaker, Hubung Singkat, Rele Arus Lebi
DOI: No DOI Available
PDF: https://ijirst.demo4.arinfotech.co/assets/upload/files/IJISRT21JUL982.pdf
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