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Karakteristik Tegangan Tembus Isolasi Cair dan Isolasi Udara pada Beberapa Perubahan Suhu dan Diameter Elektroda I Made Dwi Harinata; Jumiati Ilham; Taufiq Ismail Yusuf
Jurnal Teknik Vol 17 No 1 (2019): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Kegagalan isolasi adalah masalah yang sering terjadi dalam penyaluran energi listrik. Isolasi diperlukan untuk memisahkan dua atau lebih penghantar listrik yang bertegangan agar tidak terjadi lompatan listrik. Apabila pada bahan dielektrik diberikan medan listrik yang melebihi kemampuannya maka isolasi akan mengalami tegangan tembus dan kerusakan peralan listrik sehingga kontinuitas kerja sistem terganggu.Penelitian ini bertujuan untuk mengetahui karakteristik tegangan tembus pada isolasi cair dan isolasi udara serta mengetahui pengaruh suhu dan diameter elektroda terhadap karakteristik tegangan tembus pada isolasi cair dan isolasi udara. Metode pengujian yang dilakukan untuk mencapai tujuan penelitian yaitu menggunakan tegangan tinggi AC frekuensi 50 Hz dengan elektroda bola-bola dan elektroda bidang-bidang. Berdasarkan hasil penelitian diperoleh hasil tegangan tembus minyak transformator dan isolasi udara sebelum diatur suhunya diperoleh nilai tegangan tembus minyak transformator pada elektroda bola-bola berdiameter 1,8 cm sebesar 33,79 kV, diameter 4,9 cm sebesar 36,58 kV, dan diameter 9,7 cm sebesar 39,07 kV, pada elektroda bidang-bidang berdiameter 1,4 cm sebesar 39,91 kV, diameter 4,8 cm sebesar 34,31 kV, dan diameter 16 cm sebesar 39,91 kV. Sedangkan tegangan tembus isolasi udara pada elektroda bola-bola berdiameter 1,8 cm sebesar 7,95 kV, diameter 4,9 cm sebesar 8,27 kV, dan diameter 9,7 cm sebesar 9,13 kV, pada elektroda bidang-bidang berdiameter 1,4 cm sebesar 7,93 kV, diameter 4,8 cm sebesar 8,25 kV, dan diameter 16 cm sebesar 9,25 kV. Setiap terjadi kenaikan suhu pada minyak transformator dan isolasi udara maka nilai tegangan tembus akan semakin menurun dan setiap bertambahnya ukuran diameter elektroda maka nilai tegangan tembus minyak transformator dan isolasi udara akan semakin meningkat.

Pembuatan Profil Desa Tamboo Berbasis Web Desa Tamboo Kecamatan Bone Pantai Kabupaten Bone Bolango Taufiq Ismail Yusuf; Ikhsan Hidayat; Sardi Salim; Ade Irawaty Tolago; Rahmat D.R. Dako; Amiruddin Y Dako; Sri Wahyuni Dali
Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Vol 11, No 4 (2022): Jurnal Sibermas (Sinergi Bersama Masyarakat)
Publisher : Univeristas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/sibermas.v11i4.12789

In the previous service, initial observations that had been carried out with village officials, aimed at getting an initial picture of village conditions and observing the management and operational processes of village government, found that this village did not yet have a complete village profile document (as regulated in Minister of Home Affairs Regulation No. 12 of 2007 concerning Guidelines for Compilation and Utilization of Village and Sub-District Profile Data, does not yet have a village monograph, village map, village website and existing data are not integrated in a complete village profile document). The purpose of this service is to create a village profile in the form of a web/page so that village governance is more organized, transparent, and widely disseminated. The expected output targets of this activity are: Apparatus and the community in Tamboo Village have a village website page that can be managed alone. Village website consisting of: village profile data, population data, village resource and potential data and other activities that can be digitized for work effectiveness and efficiency.

Setting Distance Relay Pada Jaringan Transmisi 150 kV Sistem Gorontalo Taufiq Ismail Yusuf; Laode Muh. Taslan
Jurnal Teknik Vol 16 No 1 (2018): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v16i1.376

Disturbance on the transmission line can cause disruption of normal flow of a stream, in the transmission line of the most common disorders are short circuit. Distance relay are used as security for the transmission line because of its ability to quickly eliminate interference. In this research, symmetrical components method is used in to analyzing the single-phase short circuit current and two phase – ground in SUTT 150 kV Gorontalo Transmission System. The results were obtained, single-phase short circuit at most 1098,11 Ampere and the smallest is 497,67 Ampere and two phase – ground at most = 1026,91 Ampere and = 650,86 and the smallest is = 442,63 Ampere and = 337,55 Ampere, while the calculation results setting distance relay it is appropriate to avoid the reach selectivity setting exceeding 80% and avoid looping and time settings on zona1 = 0 s zona2 = 0,4 s and zona3 = 0,8 s according to the impedance value of the secondary 1 < 2 as well as on 2 < 3.

Peningkatan Kesadaran Masyarakat dalam Menggunakan Peralatan Listrik serta Pemasangan Instalasi Listrik yang Aman dan Hemat Energi Taufiq Ismail Yusuf; Ade Irawaty Tolago Ade Irawaty Tolago; Rahmat D.R. Dako; Ifan Wiranto; Sardi Salim; Amirudin Y. Dako; Ikhsan Hidayat
ELDIMAS: Jurnal Pengabdian Pada Masyarakat Vol 1 No 2 (2023): November 2023 - April 2024
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/ejppm.v1i2.12

Kegiatan Pengabdian kepada Masyarakat yang dilaksanakan oleh Universitas Negeri Gorontalo bertujuan untuk menerapkan ilmu pengetahuan dan hasil-hasil penelitian dosen serta mahasiswa kepada Masyarakat, sehingga keberadaan perguruan tinggi sebagai pusat ilmu pengetahuan dapat dirasakan oleh masyarakat. Jurusan Teknik Elektro Universitas Negeri Gorontalo pada kegiatan pengabdian kali ini melakukan kegiatan yang berfokus pada keamanan dan efisiensi penggunaan listrik. Topik ini diangkat karena masih banyaknya Masyarakat yang belum menyadari tentang pentingnya penggunaan listrik dan instalasi listrik yang benar dan aman. Kegiatan ini, dilakukan melalui beberapa sub kegiatan yakni 1) memberikan penyuluhan tentang penggunaan peralatan listrik yang aman dan hemat energi. 2) melakukan pelatihan instalasi listrik yang benar dan aman. 3) melakukan pemasangan ataupun perbaikan instalasi penerangan bagi masyarakat desa yang membutuhkan. Target luaran yang disasar pada kegiatan ini, yaitu 1) timbulnya kesadaran pengetahuan masyarakat desa akan pentingnya penggunaan peralatan listrik yang efisien dan aman. 2) Rumah-rumah penduduk desa memiliki instalasi listrik yang sesuai dengan pedoman yang benar dan aman. Community Service Activities carried out by Gorontalo State University aim to apply knowledge and research results of lecturers and students to the community, so that the existence of universities as centers of knowledge can be felt by the community. The Department of Electrical Engineering, Gorontalo State University, in this service activity carried out activities that focused on safety and efficient use of electricity. This topic was raised because there are still many people who are not aware of the importance of using electricity and installing electricity correctly and safely. This activity is carried out through several sub-activities, namely 1) providing education about the safe and energy efficient use of electrical equipment. 2) carry out training on correct and safe electrical installations. 3) install or repair lighting installations for village communities who need them. The output targets targeted in this activity are 1) raising awareness in village communities about the importance of using electrical equipment efficiently and safely. 2) Village residents' houses have electrical installations that comply with correct and safe guidelines.

Analysis of Voltage Drop and Power Losses on Medium Voltage 20 KV Distribution System Kotamobagu Area Supplied from PLTD Kotamobagu Yuslizar E.P. Bachari; Yasin Mohamad; Taufiq Ismail Yusuf; Lanto Mohamad Kamil Amali
JEECS (Journal of Electrical Engineering and Computer Sciences) Vol. 9 No. 1 (2024): JEECS (Journal of Electrical Engineering and Computer Sciences)
Publisher : Fakultas Teknik Universitas Bhayangkara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/jeecs.v9i1.9

Drop voltage and power loss at the distribution system of electricity power in the Kotamobagu Area are caused by several factors, a namely far distance of a place that is distributed by electricity power from the source, imbalance load, equipment age, the diameter of the conductor, a distance of powerhouse to the consumer is too far and connection point are caused for technical loss. If it keeps happening, it will decrease the reliability of the electric power system and the distributed quality of the electricity power as well as it can damage the equipment. Therefore, unbalanced loading should be decreased at the phase, and overloading at the network will cause PT PLN (Persero) loss in the Kotamobagu Area. This research aims to analyze voltage drop, percentage of voltage drop, and power loss at every medium voltage feeder of 20 KV that is supplied from PLTD (Steam Power Plant) Kotamobagu until every transformer of distribution at peak load. After it is analyzed, the feeder OK 1, OK 2, OK 3, OK 4, OK 5 obtain the most significant value of drop voltage for 7.221 KV, 1.94 KV, 6.472 KV, 5.04 KV, 4.878 KV, respectively, with a percentage value of 56.507%, 10.742%, 47.841%, 33.689 %,32.257%. All OK happen at powerhouse K-153 (Kobo Besar), K-158 (RS. Monompia Kotamobagu), K-187 (Poopo I), K-201 (Motoboi Kecil), K-287 (Moyag I), respectively. The most significant power loss of 11.890 KW, 4.820 KW, 9.819 KW, 7.311 KW, 10.533 KW happen at powerhouse K-140 (Matali I), K-158 (RS. Monompia Kotamobagu), K-167 (Bilalang V), K-201 (Motoboi Kecil) and K-287 (Moyag I), respectively.

Analysis of Voltage Drop and Power Losses on Medium Voltage 20 KV Distribution System Kotamobagu Area Supplied from PLTD Kotamobagu Yuslizar E.P. Bachari; Yasin Mohamad; Taufiq Ismail Yusuf; Lanto Mohamad Kamil Amali
JEECS (Journal of Electrical Engineering and Computer Sciences) Vol. 9 No. 1 (2024): June
Publisher : Fakultas Teknik Universitas Bhayangkara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/jeecs.v9i1.9

Drop voltage and power loss at the distribution system of electricity power in the Kotamobagu Area are caused by several factors, a namely far distance of a place that is distributed by electricity power from the source, imbalance load, equipment age, the diameter of the conductor, a distance of powerhouse to the consumer is too far and connection point are caused for technical loss. If it keeps happening, it will decrease the reliability of the electric power system and the distributed quality of the electricity power as well as it can damage the equipment. Therefore, unbalanced loading should be decreased at the phase, and overloading at the network will cause PT PLN (Persero) loss in the Kotamobagu Area. This research aims to analyze voltage drop, percentage of voltage drop, and power loss at every medium voltage feeder of 20 KV that is supplied from PLTD (Steam Power Plant) Kotamobagu until every transformer of distribution at peak load. After it is analyzed, the feeder OK 1, OK 2, OK 3, OK 4, OK 5 obtain the most significant value of drop voltage for 7.221 KV, 1.94 KV, 6.472 KV, 5.04 KV, 4.878 KV, respectively, with a percentage value of 56.507%, 10.742%, 47.841%, 33.689 %,32.257%. All OK happen at powerhouse K-153 (Kobo Besar), K-158 (RS. Monompia Kotamobagu), K-187 (Poopo I), K-201 (Motoboi Kecil), K-287 (Moyag I), respectively. The most significant power loss of 11.890 KW, 4.820 KW, 9.819 KW, 7.311 KW, 10.533 KW happen at powerhouse K-140 (Matali I), K-158 (RS. Monompia Kotamobagu), K-167 (Bilalang V), K-201 (Motoboi Kecil) and K-287 (Moyag I), respectively.

PENGARUH KARAKTERISTIK TANAH DAN MATERIAL ELEKTRODA TERHADAP RESISTANSI PEMBUMIAN PADA KONDISI TANAH TROPIS Aditya Kisman; Lanto Mohamad Kamil Amali; Yasin Mohamad; Taufiq Ismail Yusuf
Journal Of Renewable Energy Engineering Vol. 4 No. 1 (2026): 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.v4i1.74

Keandalan sistem tenaga listrik ditentukan oleh efektivitas sistem pembumian dalam mengalirkan arus gangguan secara aman ke tanah, yang sangat dipengaruhi oleh karakteristik tanah dan material elektroda. Penelitian ini bertujuan menganalisis pengaruh jenis tanah dan material elektroda terhadap nilai resistansi pembumian serta menentukan material yang paling efektif pada kondisi tanah tropis. Penelitian menggunakan pendekatan eksperimen komparatif yang dilaksanakan di empat lokasi di Kabupaten Bone Bolango yang merepresentasikan tanah berbatu, sawah, liat, dan pasir pesisir. Sampel penelitian terdiri atas empat jenis elektroda yaitu tembaga, kuningan, stainless steel, dan besi. Data dikumpulkan melalui pengukuran langsung menggunakan earth tester digital dengan metode fall-of-potential konfigurasi tiga titik pada kondisi geometris yang seragam, kemudian dianalisis secara deskriptif komparatif. Hasil penelitian menunjukkan bahwa nilai resistansi pembumian bervariasi menurut jenis tanah dan material elektroda. Resistansi terendah diperoleh pada elektroda tembaga di tanah pasir pesisir sebesar 0,84 Ω, sedangkan resistansi tertinggi terjadi pada elektroda besi di tanah berbatu sebesar 959 Ω. Tanah dengan kelembapan dan kandungan ion tinggi cenderung menghasilkan resistansi lebih rendah, sedangkan material dengan konduktivitas listrik lebih tinggi menunjukkan kinerja pembumian yang lebih baik. Tembaga secara konsisten memberikan nilai resistansi terendah pada seluruh jenis tanah, diikuti kuningan, stainless steel, dan besi. Secara umum material tembaga direkomendasikan sebagai material paling optimal untuk aplikasi lapangan pada kondisi tanah tropis

ANALISIS HOTSPOT DAN VALIDASI PENGUKURAN THERMOVISI PADA PERALATAN GARDU INDUK TRANSMISI. Rival Septian; Yasin Mohamad; Taufiq Ismail Yusuf; Lanto Mohamad Kamil Amali
Journal Of Renewable Energy Engineering Vol. 4 No. 1 (2026): 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.v4i1.75

Thermal monitoring of transmission equipment is an essential component in maintaining the reliability, continuity, and efficiency of electric power systems, particularly for substation equipment that operates continuously under high loading and open-environment exposure. This study aims to analyze hotspot phenomena while simultaneously evaluating the reliability of thermovision measurements on Main Transmission Equipment at Bay GT of the Anggrek Substation. The research employed a quantitative descriptive approach through direct field measurements using thermovision under peak-load conditions. The results show that Bay GT 1 exhibited higher thermal characteristics than Bay GT 2, with maximum clamp temperatures of 33.2 °C and 27.6 °C, respectively. Several points in both bays recorded ΔT values greater than 10 °C, indicating the presence of localized thermal anomalies. Emissivity values ranged from 0.47440 to 0.53377 for Bay GT 1 and from 0.51073 to 0.56425 for Bay GT 2, suggesting that the material condition remained relatively stable. Validation results further showed precision levels of 0.6% and 0.5%, with corresponding accuracy values of 98.7% and 91.9%.

Utilization of Coconut Shell Charcoal for Grounding Resistance Reduction Using Plate Electrodes Yusran Moha; Taufiq Ismail Yusuf; Ade Irawaty Tolago
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 1 (2026): Januari - Juni 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i1.29165

The grounding system is an essential component of electrical protection systems, requiring low resistance values to ensure the safety of equipment and personnel. The grounding resistance is influenced by several factors, including soil type, soil moisture, temperature, as well as the structure and characteristics of the soil at the installation site. One method that can be applied to reduce grounding resistance is the use of additional materials such as coconut shell charcoal. This study aims to analyze the effect of adding coconut shell charcoal on grounding resistance using square plate electrodes. The testing was conducted over a period of 15 days with variations in electrode size, namely 40 cm and 60 cm, installed at a depth of 80 cm. The results indicate that the addition of coconut shell charcoal significantly reduces grounding resistance. The resistance value decreased from 43.4 Ω to 10 Ω when using a 40 cm electrode and from 21.5 Ω to 7.6 Ω when using a 60 cm electrode on the 15th day. The percentage reduction in resistance reached 77%. Furthermore, the use of larger electrodes resulted in lower resistance values. These results demonstrate that coconut shell charcoal is effective in improving the performance of grounding systems.

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