KAJIAN PERHITUNGAN PENENTUAN KAPASITAS PMT 500 KV
PADA BAY TRANSMISI DARI GARDU INDUK LENGKONG KE
GARDU INDUK BALARAJA
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
HAPSARI, ALIN NAFIK
Sampurno, Sampurno
Sampurno, Sampurno
Subject
Teknik Elektro
Datestamp
2019-10-10 09:45:30
Abstract :
The construction of a 500 kV transmission line from GITET Lengkong to GITET Balaraja was done to overcome the increasing load growth rate in Jakarta and surrounding areas. In the construction of new channels, it is necessary to be equipped with a protection system, so that the epower distribution system has good reliability. One of the protection tools needed is the Circuit Breaker (CB) which serves to break the power flow when the transmission line is interrupted, especially short circuit. In determining the CB capacity to be installed, a short circuit analysis is needed. This is because the determination of PMT capacity is based on the value of the greatest fault current, namely the three phase short circuit current. In this thesis, the calculation of single phase short circuit current and three phase short circuit current to the ground on the 500 kV transmission line Lengkong - Balaraja. With a three-phase short circuit current value of 41,108 ? ? 85,41° kA, while the single-phase short circuit fault current value that may flow is 43,762 ? ? 83,77° kA. So that the selected PMT is PMT with a short circuit current rating of 50 kA. The result of the calculation of PMT capacity on the channel is 14433,7 MVA.
The construction of a 500 kV transmission line from GITET Lengkong to GITET Balaraja was done to overcome the increasing load growth rate in Jakarta and surrounding areas. In the construction of new channels, it is necessary to be equipped with a protection system, so that the epower distribution system has good reliability. One of the protection tools needed is the Circuit Breaker (CB) which serves to break the power flow when the transmission line is interrupted, especially short circuit. In determining the CB capacity to be installed, a short circuit analysis is needed. This is because the determination of PMT capacity is based on the value of the greatest fault current, namely the three phase short circuit current. In this thesis, the calculation of single phase short circuit current and three phase short circuit current to the ground on the 500 kV transmission line Lengkong - Balaraja. With a three-phase short circuit current value of 41,108 ? ? 85,41° kA, while the single-phase short circuit fault current value that may flow is 43,762 ? ? 83,77° kA. So that the selected PMT is PMT with a short circuit current rating of 50 kA. The result of the calculation of PMT capacity on the channel is 14433,7 MVA.
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