PENERAPAN SKEMA POTT ECHO DENGAN WEAK INFEED UNTUK DISTANCE RELAY DALAM MENINGKATKAN KEANDALAN AUTORECLOSE PADA GI RADIAL UJUNG DI ULTG PANGKALAN BUN
DOI:
https://doi.org/10.26623/elektrika.v17i1.11095Kata Kunci:
POTT, Echo, Weak-End Infeed, Proteksi Jarak, AutorecloseAbstrak
This study examines the implementation of the Permissive Overreach Transfer Trip (POTT) Echo scheme with the activation of the Weak-End Infeed (WEI) function on distance protection systems in a 150 kV transmission network to enhance protection reliability and selectivity, especially at substations with weak infeed currents. Before WEI activation, the protection system experienced delays or failures in detecting faults, particularly for faults in zone 2, where the relay tripped with a delay instead of achieving a desired reclose, thereby extending the Transmission Line Outage Duration (TLOD). After WEI activation, test results showed that the relay provided an instantaneous trip response, and the autoreclose function operated after 1000 ms, significantly reducing TLOD. The success of the echo signal ensured smooth communication between relays, supporting efficient protection coordination. Moreover, the selectivity function remained intact. The implementation of this scheme has proven to enhance the reliability of the protection system, offering a more stable and responsive solution for addressing the challenges posed by weak infeed currents.
Keywords: POTT, Echo, Weak-End Infeed, Distance Protection, Autoreclose
ABSTRAK
Penelitian ini membahas implementasi skema Permissive Overreach Transfer Trip (POTT) Echo dengan aktivasi fungsi Weak-End Infeed (WEI) pada sistem proteksi jarak di jaringan transmisi 150 kV untuk meningkatkan keandalan dan selektivitas proteksi, khususnya di gardu induk dengan arus infeed lemah. Sebelum aktivasi WEI, sistem proteksi mengalami keterlambatan atau kegagalan dalam mendeteksi gangguan, terutama pada gangguan di zona 2, di mana relay memicu trip dengan waktu tunda, meskipun reclose diharapkan, sehingga memperpanjang durasi gangguan (Transmission Line Outage Duration - TLOD). Setelah aktivasi WEI, hasil pengujian menunjukkan bahwa relay memberikan respon trip instan, dan fungsi autoreclose dapat bekerja setelah 1000 ms, mengurangi TLOD secara signifikan. Keberhasilan sinyal echo memastikan komunikasi antar relay berjalan lancar, mendukung koordinasi proteksi yang efisien. Selain itu, fungsi selektivitas tetap terjaga. Penerapan skema ini terbukti meningkatkan keandalan sistem proteksi, memberikan solusi yang lebih stabil dan responsif dalam menghadapi tantangan arus infeed lemah.
Referensi
[1] PT.PLN (Persero) P3B Jawa Bali, “Pedoman dan Petunjuk Sistem Proteksi Transmisi dan Gardu Induk Jawa Bali,” Jakarta, 2013.
[2] J. Pitono, ImplementasiI Intertripping Pola Weak Infeed (WI) pada SUTT 150 kV Sistem Kelistrikan Kalimantan Selatan dan Kalimantan Tengah, Sema-rang: Universitas Diponegoro, 2011.
[3] PT.PLN (Persero) UIP3B Sumatera, “Skema POTT Echo (Weak Infeed + CB Open) Distance Relay GE Type D60 Untuk Keandalan Autoreclose GI Radial Ujung - Segmen Line Charging,” Pekanbaru, 2019.
[4] N. Rochmadi, “Resetting Teleproteksi Distance Re-lay Tipe MICOM P442 Merk Areva Bay Padalarang II dI Gardu Induk 150 kV Bandung Utara,” Univer-sitas Gadjah Mada, Yogyakarta, 2021.
[5] N. Benedicta, Analisa Scanning Setting Proteksi Dis-tance Relay pada Penghantar 150kV Gardu Induk Garuda Sakti ke Gardu Induk Balai Pungun, Pek-anbaru: Buku Tugas Akhir UIN Suska Riau, 2021.
[6] M. Ardianto, Analisa Sistem Proteksi Distance Relay SUTT GI Randu Garut Kaliwungu 1, Semarang: Universitas Semarang, 2021.
[7] PT.PLN (Persero), “Berita Acara Penetapan Aset Tahun 2024,” PLN UIP3B Kalimantan, Banjarbaru, 2024.
[8] PT.PLN (Persero), “FOISSEAM PLN,” PT.PLN (Persero), Jakarta, 2023-2024.
Unduhan
Diterbitkan
Terbitan
Bagian
Lisensi
Hak Cipta (c) 2025 Elektrika
Artikel ini berlisensiCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors who publish this journal agree to the following terms:
The author owns the copyright and grants the journal the first publication rights with the work simultaneously licensed under the Creative Commons Attribution 4.0 International License which allows others to share the work with recognition of the authorship of the work and initial publication in the journal.
Authors may enter into separate additional contractual agreements for non-exclusive distribution of the published journal version of the work (e.g., posting it to an institutional repository or publishing it in a book), in recognition of its initial publication in this journal.
Authors are allowed and encouraged to post their work online (e.g., in institutional repositories or on their websites) before and during the submission process, as it can lead to productive exchanges, as well as earlier and larger citations of published works (See The Effects of Open Access).
This work is licensed under the Creative Commons Attribution 4.0 International License.
