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All Journal Elektron Jurnal Ilmiah PROtek : Jurnal Ilmiah Teknik Elektro Jurnal Andalas: Rekayasa dan Penerapan Teknologi Jurnal Surya Energy
Yudia Meka Seftiani
Politeknik Negeri Padang
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Other

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Studi Kelayakan Sistem Pentanahan pada Gedung Teknik Elektro Universitas Andalas Yudia Meka Seftiani; Novizon Novizon
Elektron : Jurnal Ilmiah Volume 14 Nomor 2 Tahun 2022
Publisher : Teknik Elektro Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/eji.14.2.297

Abstract

The grounding system is one part of the electric power system that has an important role in flowing overcurrent from the electric power system to the ground due to electrical power system disturbances or lightning strikes that can endanger the building and its surroundings. This grounding system aims to protect humans, electrical equipment, and electrical installations from the danger of electrical short circuits. In compliance with official regulations, safety standards and according to general electrical installation regulatory standards (PUIL) to avoid the danger of lightning strikes in buildings, it is necessary to have grounding resistance value of less than five ohms and is made as small as possible. In this study, the measurement of grounding resistance seen from the depth of the grounding and the grounding resistance are arranged in parallel. The results of this study indicate that the parallel grounding resistance method produces a more significant reduction in the value of grounding resistance compared to the grounding resistance in a certain depth From the calculation results, the resistance value of the Electrical Engineering Building at Andalas University using a rod electrode with a diameter of 0.016 meters is 24.5 Ω with an electrode depth of 0.5 meters and at a depth of 1 meter a grounding value of 17.52 Ω is obtained. The deeper the depth of the electrode, the smaller the resulting resistance value, and installing a grounding system with the multirod method, namely arranging electrodes in parallel with a certain depth, obtains less resistance compared to not parallelizing the electrodes
Pengembangan Instalasi Penerangan dan Instalasi Tenaga Listrik Mushalla Al-Barkah Lambung Bukit Kecamatan Pauh Nofri Dodi; Yudia Meka Seftiani; Aulia Oktavia; Firmansyah Firmansyah; Riza Widia; Witri Onanda
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 3 No. 1 (2023): Juni 2023
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v3i1.40

Abstract

Lambung Bukit Batu Busuk, Pauh, located in Padang City, West Sumatera established a prayer room which was named Mushalla Al-Barkah. This mushalla is used as a place of worship for muslims around Lambung Bukit Batu Busuk Padang. Some of the the worship activities carried out at the mushalla, include congregational prayer activities, Al-Qur’an education and other worship activities. These activities really need electricity in their implementation. The mushalla need loudspeakers to adzan, the mushalla needs lights for lighting at night. However, the incomplete installasyion of electrical installations in the mushalla has resulted in delays in worship activities in the mushalla for the community around Lambung Bukit Batu Busuk, Padang. Because of that the community implementation team carried out the development of lighting installastions and elekctric power installasions at Mushalla Al-Barkah. After this activitiy was complete at the mushalla, the mushalla’s electrical installation was perfect. This activity is useful for partners and can be used as a promotional agenda for the people Lambung Bukit, Pauh to get to know the Padang State Polytechnic.
Analysis of the Effect of Sea Salt, Volcanic Ash and Black Carbon Contamination on the Insulation Resistance of Porcelain Insulators Yudia Meka Seftiani; Romi Mulyadi; zulka hendri; witri onanda; nofri dodi
PROtek : Jurnal Ilmiah Teknik Elektro Vol 13 No 2 (2026): Protek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v13i2.10733

Abstract

The reliability of porcelain insulators in power systems is strongly influenced by surface conditions, particularly contamination from environmental pollutants. Such contamination can significantly reduce insulation resistance, thereby increasing the risk of leakage currents and flashover. This study aims to analyze the effects of major pollutants—namely sea salt, volcanic ash, and black carbon—on the insulation resistance of porcelain insulators. An experimental approach was employed by testing insulators under clean conditions and comparing the results after artificial contamination with each pollutant under controlled temperature and humidity conditions. Insulation resistance was measured using a megohmmeter, and the data were processed using the arithmetic mean of ten repeated measurements and analyzed descriptively. The results show that the clean condition yielded the highest average insulation resistance of 518 MΩ. Sea salt contamination caused the most significant reduction (210 MΩ), followed by volcanic ash (240 MΩ) and black carbon (280 MΩ). The greater impact of sea salt is attributed to its hygroscopic nature, which forms a conductive electrolyte layer, while volcanic ash contributes through its mineral composition and moisture retention, and black carbon through conductive particle networks. It can be concluded that sea salt has the greatest impact on insulation resistance degradation, followed by volcanic ash and black carbon. Although the measured values remain within acceptable limits for medium-voltage systems, continuous contamination may increase the risk of insulation degradation. Therefore, appropriate maintenance and pollution control strategies are necessary to ensure long-term reliability.
Studi Kasus Dampak Sambaran Petir Terhadap Tower Transmisi 150 kV Berbasis Simulasi ATPDRAW di Jaringan Gardu Induk Kota Solok Yudia Meka Seftiani; Aldi Rahman; Julsam; Nazris Nazaruddin; Aditya Wardhani; Afif Pratama; Muhardika
Jurnal Surya Energy Vol. 9 No. 1 (2024)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v9i1.285

Abstract

Listrik merupakan kebutuhan penting dalam kehidupan modern sehingga ketersediaan listrik yang stabil menjadi kunci dalam mencapai keseimbangan lingkungan dan mendukung kemajuan masyarakat. Saluran transmisi listrik terdiri dari tower transmisi yang menyalurkan energi dari pembangkit listrik ke konsumen. Namun, tower transmisi rentan terhadap gangguan eksternal terutama sambaran petir yang dapat menyebabkan lonjakan tegangan dan mengganggu sistem kelistrikan. Perlindungan sistem transmisi dari dampak tersebut memerlukan penggunaan transmission line surge arrester (TLA). Penelitian ini bertujuan untuk menganalisis dampak sambaran petir terhadap kawat fasa serta mengevaluasi efektivitas pemasangan TLA pada tower transmisi di wilayah kerja Gardu Induk Solok. Simulasi dilakukan menggunakan software alternative transient program (ATP), dengan parameter tower transmisi yang disesuaikan dengan standar kelistrikan di Indonesia. Variasi arus sambaran petir sebesar 30, 40, dan 50 kA serta waktu muka dan ekor 1,2/50 μs digunakan dalam simulasi untuk mengkaji kenaikan tegangan induksi pada setiap fasa. Hasil simulasi menunjukkan bahwa semakin besar arus petir, semakin tinggi tegangan lebih yang terjadi pada saluran transmisi. Setelah pemasangan TLA, hasil simulasi menunjukkan bahwa alat tersebut mampu mereduksi tegangan lebih akibat petir dengan efektivitas antara 73% hingga 87%. Dengan demikian, penelitian ini membuktikan bahwa TLA sangat efektif dalam mengurangi lonjakan tegangan akibat sambaran petir, sehingga meningkatkan keandalan sistem transmisi listrik.
Sistem Kontrol Pada Unit Proses Chilled Water System Muhardika; Wiwik Wiharti; Riza Widia; Andira Agustin; Yani Kamisa Putri; Yudia Meka Seftiani
Jurnal Surya Energy Vol. 10 No. 1 (2025)
Publisher : Teknik Elektro, Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v10i1.916

Abstract

Penelitian ini bertujuan untuk mengevaluasi bagaimana sistem kontrol otomatis pada unit Process Chilled Water (PCW) di PT. Infineon berfungsi dalam mendukung proses pendinginan yang efisien. Kami fokus pada kinerja sistem dalam mengatur suhu dan tekanan, serta bagaimana kontrol Proportional-Integral-Derivative (PID) berperan dalam menjaga kestabilan operasional. Hasil penelitian menunjukkan bahwa sistem ini bekerja dengan baik, mampu mempertahankan suhu dalam rentang 15˚C hingga 23°C dan tekanan antara 2,5 hingga 3,2 bar. Kontrol PID yang diterapkan terbukti responsif terhadap perubahan suhu dan tekanan, sehingga sistem dapat menyesuaikan diri dengan cepat dan akurat. Dengan menggunakan sensor tekanan dan suhu, sistem secara otomatis mengaktifkan atau menonaktifkan pompa, yang membantu menjaga kondisi operasional yang optimal. Salah satu aspek penting dari sistem ini adalah tampilan Human-Machine Interface (HMI), yang memudahkan operator dalam memantau status operasional secara real-time. HMI memungkinkan operator untuk membuat keputusan yang lebih cepat dan tepat, serta meningkatkan respons terhadap situasi darurat. Penelitian ini juga menunjukkan bahwa integrasi antara sistem kontrol otomatis dan HMI tidak hanya meningkatkan efisiensi, tetapi juga mengurangi kemungkinan kesalahan manusia dalam pengelolaan proses pendinginan.Secara keseluruhan, temuan dari penelitian ini menunjukkan bahwa penerapan sistem kontrol otomatis di PT. Infineon memberikan kontribusi signifikan terhadap peningkatan kinerja sistem pendinginan. Kami berharap hasil penelitian ini dapat menjadi referensi berharga bagi industri lain yang ingin menerapkan sistem kontrol otomatis serupa untuk meningkatkan efisiensi operasional mereka.
Co-Authors Aditya Wardhani Afif Pratama Aldi Rahman Andira Agustin Aulia Oktavia Firmansyah - - Julsam Muhardika Nazris Nazaruddin Nofri Dodi nofri dodi Novizon, Novizon Riza Widia Romi Mulyadi Witri Onanda witri onanda Wiwik Wiharti Yani Kamisa Putri zulka hendri