Penerapan Koordinasi Proteksi Berbasis IEC 61850 GOOSE Di Switchgear Tegangan Menengah 20 kV: Studi Kasus Di Gardu Induk Lagadar

Sirait, Supriadi (2026) Penerapan Koordinasi Proteksi Berbasis IEC 61850 GOOSE Di Switchgear Tegangan Menengah 20 kV: Studi Kasus Di Gardu Induk Lagadar. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Koordinasi proteksi memiliki peran penting dalam menjaga keandalan sistem tenaga listrik, khususnya pada jaringan distribusi tegangan menengah yang terhubung dengan transformator daya. Koordinasi proteksi yang kurang optimal dapat memperpanjang waktu pembersihan gangguan, terutama ketika terjadi kegagalan trip pada pemutus tenaga penyulang. Studi ini menawarkan pendekatan alternatif dengan menerapkan koordinasi proteksi berbasis GOOSE menggunakan protokol IEC 61850. Sebelum implementasi, kecepatan transmisi GOOSE dievaluasi untuk memastikan kesesuaiannya dalam aplikasi proteksi. Dalam studi ini, pengujian koordinasi relay proteksi arus lebih (OCR) dilakukan dengan mensimulasikan kondisi gangguan menggunakan relay test set, serta mensimulasikan PMT penyulang seolah-olah gagal trip, kemudian logika trip proteksi penyulang disusun agar sinyal GOOSE dapat dikirim dari relay penyulang ke relay incoming. Berbeda dengan skema konvensional berbasis cascade, penelitian ini menunjukkan mekanisme koordinasi berbasis GOOSE yang sangat relevan untuk memungkinkan koordinasi yang lebih cepat dan selektif. Through Fault Current (TFC) yang mengalir melalui transformator dapat memperpanjang paparan transformator terhadap arus gangguan eksternal dan berpotensi berkontribusi terhadap penurunan kondisi transformator. Oleh karena itu, penerapan koordinasi proteksi berbasis GOOSE diperlukan untuk mengurangi durasi TFC tersebut. Penerapan koordinasi proteksi berbasis GOOSE ini dilakukan di Gardu Induk (GI) Lagadar, Jawa Barat. Hasil pengujian menunjukkan bahwa skema berbasis GOOSE berbasis GOOSE mampu menurunkan fault-clearing time (FCT) secara signifikan dibandingkan skema cascade konvensional. Pada arus gangguan 2400 A, FCT berkurang dari 11,530 s menjadi 1,119 s, atau setara dengan reduksi sebesar 90,3%.
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Protection coordination plays an important role in maintaining the reliability of electric power systems, particularly in medium-voltage distribution networks connected to power transformers. Suboptimal protection coordination may prolong the fault-clearing time, especially when a feeder circuit breaker fails to trip. This study proposes an alternative approach by implementing GOOSE based protection coordination using the IEC 61850 GOOSE protocol. Prior to implementation, the GOOSE transmission speed was evaluated to ensure its suitability for protection applications. In this study, overcurrent relay (OCR) coordination testing was conducted by simulating fault conditions using a relay test set, while feeder circuit breaker failure conditions were also simulated. Furthermore, the feeder protection trip logic and GOOSE signals were configured to be transmitted from the feeder relay to the incoming relay. Unlike conventional cascade-based schemes, this study demonstrates a GOOSE-based coordination mechanism that is highly relevant for enabling faster and more selective coordination. Through-fault current (TFC) flowing through the transformer may prolong the transformer exposure to external fault current and potentially contribute to transformer condition deterioration. Therefore, the implementation of GOOSE-based protection coordination is required to reduce the exposure duration of through-fault current. The implementation of this GOOSE based protection coordination scheme was carried out at the Lagadar Substation, West Java. The test results show that the GOOSE-based scheme significantly reduces the fault-clearing time (FCT) compared with the conventional cascade scheme. At a fault current of 2400 A, the FCT was reduced from 11.530 s to 1.119 s, corresponding to a reduction of 90.3%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Koordinasi Proteksi, IEC 61850 GOOSE, Berbasis GOOSE, Breaker Failure, Fault-Clearing Time, Protection Coordination, GOOSE-based
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2861 Electric relays. Protective relays--Security measures. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3030 Electric power distribution systems
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User:	Supriadi Sirait
Date Deposited:	31 Jul 2026 08:06
Last Modified:	31 Jul 2026 08:06
URI:	http://repository.its.ac.id/id/eprint/141102

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