Authors :
Taufiq Ismail Yusuf
Volume/Issue :
Volume 6 - 2021, Issue 7 - July
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/3fZoo2t
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
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
