| NIM | H1A016062 |
|---|
| Namamhs | RAFLI MAHENDRA |
|---|
| Judul Artikel | ANALISIS KOORDINASI SISTEM PROTEKSI OVER CURRENT RELAY, GROUND FAULT RELAY , DAN RECLOSER PADA PENYULANG KBL 13 DI GARDU INDUK 150 KV KALIBAKAL PT. PLN (PERSERO) UP3 PURWOKERTO |
|---|
| Abstrak (Bhs. Indonesia) | Pada tahun 2019 penyulang KBL 13 telah mengalami trip (pemadaman) sebanyak 5 kali akibat gangguan hubung singkat. Hal tersebut mengindikasikan bahwa koordinasi relay proteksi pada PMT outgoing dan recloser tersebut belum sesuai standar PLN. Koordinasi relay proteksi adalah waktu kerja OCR dan GFR serta selisih waktu kerja OCR dan GFR di tiap peralatan proteksi. Untuk mengetahui koordinasi relay yang tepat, dibutuhkan perhitungan arus nominal trafo, reaktansi sumber, reaktansi trafo, impendansi serta arus hubung singkatnya. Dalam penelitian ini, didapat perhitungan arus hubung singkat terbesar 10128,95 A dan terkecil 1507,442 A. Perhitungan arus hubung singkat digunakan untuk menghitung waktu kerja OCR/GFR serta mengetahui selisih waktu kerja (Δt) relay antara PMT outgoing dan recloser. Pada perhitungan awal waktu kerja OCR/GFR didapat Δt relay yang belum sesuai standar PLN. Berdasarkan standar PLN untuk Δt relay antara PMT outgoing dan recloser sebesar 0,4 detik dan Δt relay antar recloser sebesar 0,1 detik. Sehingga diperlukan pengaturan ulang nilai tms (time multiple setting) untuk memperoleh Δt relay sesuai standar PLN. Berdasarkan hasil perhitungan diperoleh nilai tms OCR baru pada PMT outgoing sebesar 0,30 detik, recloser I 0,12 detik, dan recloser II 0,08 detik. Sedangkan tms GFR baru pada PMT outgoing 0,29 detik , recloser I 0,12 detik , dan recloser II 0,08 detik. Perubahan pada nilai tms tersebut menghasilkan Δt kerja relay pada PMT outgoing dan recloser sebesar 0,4 detik dan antar recloser sebesar 0,1 detik sehingga sesuai dengan standar PLN. |
|---|
| Abtrak (Bhs. Inggris) | In 2019 the KBL 13 feeders experienced 5 trips (blackouts) due to short circuit problems. This indicates that the coordination of the protection relays on the outgoing and recloser PMTs is not yet according to PLN standards. Protection relay coordination is the working time of OCR and GFR and the difference in working time of OCR and GFR in each protective equipment. To find the proper relay coordination, it is necessary to calculate the nominal current of the transformer, the reactance of the source, the reactance of the transformer, the impedance and the short circuit current. In this research, the largest short circuit current calculation is 10128.95 A and the smallest is 1507.442 A. The calculation of short circuit current is used to calculate the working time of the OCR / GFR and determine the working time difference (Δt) of the relay between the outgoing PMT and recloser. In the initial calculation of the OCR / GFR working time, it was found that the relay was not yet in accordance with PLN standards. Based on the PLN standard for Δt relay between outgoing PMT and recloser is 0.4 seconds and Δt relay between reclosers is 0.1 second. So it is necessary to reset the tms value (time multiple setting) to obtain Δt relay according to PLN standards. Based on the calculation results for the new OCR tms value for outgoing PMT was 0.30 seconds, recloser I was 0.12 seconds, and recloser II was 0.08 seconds. Meanwhile, the new GFR tms for outgoing PMT was 0.29 seconds, recloser I was 0.12 seconds, and recloser II was 0.08 seconds. The change in the tms value results in a relay working Δt for outgoing and recloser of 0.4 seconds and between reclosers of 0.1 second so that it is in accordance with PLN standards |
|---|
| Kata kunci | arus hubung singkat, koordinasi relay, tms (time multiple setting) |
|---|
| Pembimbing 1 | Daru Tri Nugroho, S.T.,M.T |
|---|
| Pembimbing 2 | Hari Prasetijo, S.T.,M.T |
|---|
| Pembimbing 3 | |
|---|
| Tahun | 2020 |
|---|
| Jumlah Halaman | 9 |
|---|
| Tgl. Entri | 2020-11-15 07:26:52.024218 |
|---|