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Taufik Ismail Yusuf
Universitas Negeri Gorontalo
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Studi Koordinasi Relai Arus Lebih dan Gangguan Tanah pada Penyulang Gardu Induk 20 kV Marisa Andry E.P Ismail; Taufik Ismail Yusuf; Ervan Hasan Harun
Jurnal Teknik Vol 16 No 2 (2018): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1056.474 KB) | DOI: 10.37031/jt.v16i2.36

Abstract

Pada sistem distribusi biasanya terjadi black out (sistem kelistrikan mati) diakibatkan karena kesalahan koordinasi antara pengaman penyulang masuk sebagai pengaman cadangan dengan salah satu penyulang keluar sebagai pengaman utama, sehingga jika di salah satu penyulang mengalami gangguan maka penyulang yang lainnya juga ikut terganggu. Untuk itu diperlukan koordinasi proteksi yang sensitif, cepat dan selektif pada penyulang masuk dan penyulang keluar. Pada penelitian ini, dilakukan perhitungan arus hubung singkat untuk melihat pengaruh panjang jaringan terhadap arus hubung singkat, serta menentukan setelan relai untuk mengetahui kondisi koordinasi antara pengaman penyulang keluar dengan penyulang masuk berdasarkan waktu kerja relai terhadap arus gangguan yang terjadi pada penyulang Gardu Induk 20 kV Marisa Dari hasil penelitian didapat bahwa arus gangguan hubung singkat terbesar adalah arus gangguan 3 fasa di penyulang keluar MR 4 jika dibandingkan dengan penyulang keluar lainya. Kondisi koordinasi antara relai arus lebih (OCR) penyulang masuk MR 2.1 dengan relai arus lebih (OCR) penyulang keluar MR 1 dan MR 6 tidak begitu bagus, karena penyulang MR 1 dan MR 6 nilai arus gangguan di tengah-tengah jaringan lebih kecil dari setelan arus (Iset) OCR MR 2.1 sehingga membuat relai OCR MR 2.1 sebagai pengaman cadangan tidak dapat berkerja jika pengaman utama gagal berkerja pada saat terjadi gangguan hubung singkat di ujung jaringan. Sedangkan untuk koordinasi MR 2.1 dengan MR 3 dan MR 4 sudah bagus karena relai penyulang masuk dapat berkerja pada saat gangguan di ujung jaringan dan relainya tidak berkerja secara bersamaan. Adapun kondisi koordinasi antara relai gangguan tanah (GFR) penyulang masuk MR 2.1 dengan relai gangguan tanah (GFR) penyulang keluar MR 1, MR 3, MR 4, MR 6 sudah bagus karena gambar kurvanya tidak saling berpotongan sehingga relai tidak akan berkerja secara bersamaan dan memiliki waktu kerja relai yang cepat untuk memerintahkan pemutus tenaga (PMT) berkerja.
KARAKTERISTIK TEGANGAN TEMBUS MINYAK TRAFO SHELL DIALA B MENGGUNAKAN MATERIAL ELEKTRODA BERBAHAN STAINLES STEEL, KUNINGAN, TEMBAGA DAN ALUMUNIUM Amali, Kamil; Mohamad, Yasin; Yusuf, Taufik Ismail; Ntobuo, Nova Elysia
Journal Of Renewable Energy Engineering Vol. 2 No. 1 (2024): Journal Of Renewable Energy Engineering (April)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v2i1.24

Abstract

Transformer oil insulation breakdown voltage testing is usually carried out at high AC voltage using the SPLN 49-1 1982 standard. The electrodes used are hemispherical electrodes with a distance between the electrodes of 2.5mm. The breakdown voltage value of transformer oil insulation that meets the standards according to SPLN 49-1 of 1982 is 30 kV/2.5mm. In this research, a new Shell Diala B brand transformer oil insulation breakdown voltage test was carried out using the SPLN 49-1 1982 testing standard. The novelty of this research is using various electrode shapes and different electrode materials to test the breakdown voltage of the transformer oil's liquid insulation. The method used in this research is an experimental method where the test is adapted to the SPLN 49-1 standard of 1982. The electrodes used are ball, needle, and plate electrodes. Based on test results at a distance between electrodes of 2.5 mm, it was found that the breakdown voltage characteristics of stainless steel, brass, copper, and aluminum electrode materials varied and did not meet the SPLN 49-1 1982 standard, namely 30 kV/2.5 mm.
Relay OCR dan GFR ANALISIS KINERJA OVER CURRENT RELAY (OCR) & GROUND FAULT RELAY (GFR) PADA PENYULANG 20KV GB5 ULTG GORONTALO MENGGUNAKAN ALAT UJI CMC 356 Amali, Kamil; Damogalad, Muhamad Rifai; Yusuf, Taufik Ismail; Harun, Ervan Hasan; Tolango, Ade Irawaty
Journal Of Renewable Energy Engineering Vol. 2 No. 1 (2024): Journal Of Renewable Energy Engineering (April)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v2i1.31

Abstract

This research was conducted to test the reliability of the performance of the OCR-GFR relay whether it complies with the settings or not during field testing and to find out a comparative analysis of the performance of theoretical calculations with the results of field testing using the CMC 356 test equipment. This research uses a descriptive method. This research aims to determine whether the performance of the OCR–GFR relay that is being used is still good performance or suitable for use. And the tests carried out are pick up and drop off tests and characteristic tests. The results of the OCR pick-up and drop-off relay test were 1.2 A and the drop-off was 1.134 A. Meanwhile, for the GFR relay the pickup relay was 0.20 A and the drop-off was 185.0 mA. The results of the pickup and drop-off tests can conclude that the relay works according to its settings. Meanwhile, for field testing, the OCR relay characteristics at 1.5 times the setting current are 3.627 s and the theoretical calculation results are 3.697 s. For the GFR relay, the field test results obtained were 1.5 times the setting current, namely 1.981 s, and the theoretical calculation results were 1.977 s. This means that the test results are close to the calculated values. This shows that the Micom P142 OCR/GFR Relay tested is still in good performance.
ANALISIS KEANDALAN SISTEM JARINGAN DISTRIBUSI 20 KV PENYULANG BP1 DI PT.PLN (PERSERO) UP3 GORONTALO DENGAN METODE SECTION TECHNIQUE Polingala, Reynaldi; Harun, Ervan Hasan; Yusuf, Taufik Ismail
Journal Of Renewable Energy Engineering Vol. 3 No. 2 (2025): Journal Of Renewable Energy Engineering (Oktober)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v3i2.59

Abstract

One of the important factors and main indicators of the quality of electricity supply services from the system to customers is the reliability of the distribution network. Frequent disruptions to the distribution network can reduce the reliability of electricity distribution. Based on data obtained from PLN UP3 Gorontalo, the BP1 feeder is a vulnerable area that experiences the most frequent service disruptions, with a total of 96 disruptions during 2023. This study aims to determine the reliability index value of the 20 kV distribution system for the BP1 feeder using the section technique, and to determine the undistributed energy and the losses incurred due to blackouts in the BP1 feeder. The method used in this study is the section technique, which evaluates a distribution system by assessing how the failure of a piece of equipment affects its operation. The results of the study show that the reliability index for the BP1 feeder in 2023 is SAIFI of 15.43 times/customer/year, SAIDI of 3.61 hours/customer/year, and CAIDI of 0.23 hours/customer. From these results, it can be concluded that the SAIFI value for the BP1 feeder is not yet reliable, as it does not meet the SPLN 68-2:1986 standard of 3.2 times/year. Meanwhile, the SAIDI value of the BP1 feeder is reliable because it meets the SPLN 68-2:1986 standard value of 21.09 hours/year. The unsupplied energy (ENS) is 18,809.81 kWh, so the loss value for the BP1 feeder in 2023 is Rp. 30,933,106.55.
Co-Authors Ade Irawaty Tolago Amali, Kamil Andry E.P Ismail Damogalad, Muhamad Rifai Ervan Hasan Harun Nova Elysia Ntobuo Polingala, Reynaldi Yasin Mohamad