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All Journal Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Jurnal Teknik Elektro dan Komputasi (ELKOM)
Agung Trihasto
Universitas Tidar
Aerospace Engineering Automotive Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering Public Health

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Aplikasi Pengukuran Panel Generation Factor Pada Pembangkit Listrik Tenaga Surya Untuk Usaha Day Old Chicken Badan Usaha Milik Desa Sukosari Dwi Novianto; Risky Via Yuliantari; Agung Trihasto; Mikael Sihite
Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 5, No 2 (2022): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v5i2.2932

Abstract

Universitas Tidar (UNTIDAR) secara geografis terletak di tengah pegunungan berapi. Gunung-gunung yang mengelilingi adalah Merapi, Sumbing, Merbabu, Andhong, dan Sindoro. Dikaki  Gunung Sumbing terdapat pengusaha peternakan ayam jawa yang berlokasi di Ds. Sukosari, Kec. Bandongan, Kab. Bandongan. Usaha tersebut merupakan usaha berskala UMKM dengan produk day old chicken dan ayam jawa siap potong. Sebelum pandemi Covid 19, usaha peternakan tersebut mempunyai cash flow yang lancar. Namun saat pandemi Covid 19, permintaan day old chicken dan ayam siap potong menurun sehingga keuntungan semakin kecil. Untuk meningkatkan keuntungan walau permintaan menurun, biaya produksi harus diturunkan. Cara untuk menurunkan biaya produksi adalah menyilangkan ayam pedaging dengan ayam jawa, membuat inkubator telur otomatis untuk meningkatkan keberhasilan penetasan dan memanfaatkan energi terbaharukan pada proses penetasan hingga penggemukan. Energi terbaharukan yang diusulkan untuk mengurangi biaya produksi adalah Pembangkit Listrik Tenaga Surya (PLTS) dengan kapasitas panel surya 320Wp. Panel surya tersebut dapat mensuplai kebutuhan listrik inkubator selama 24jam dengan kapasitas inkubator sebanyak 100 butir telur. Dengan pemanfaatan PLTS sebagai sumber energi inkubator telur, pengusaha dapat meminimalisir biaya penetasan sehingga keuntungan mengingkat.
Development of a Fuzzy Logic Health Index for Generator Stator Insulation Condition Assessment Muhamad Arief Afandy; Agung Trihasto; Risky Via Yuliantari
Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Vol 8, No 2 (2026): August
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v8i2.4082

Abstract

Stator insulation breakdown is the primary cause of generator failures, driven by cumulative thermal, electrical, and mechanical stresses. For generator Unit 2 at PLTU Palabuhan Ratu Coal-Fired Power Plant, the Mamdani fuzzy logic model provides an automated, rule-based diagnostic assessment utilizing tip-up tan delta, AC leakage current, and partial discharge measurements. This model predicts the Health Index of generator phases using historical test data 2019, 2023, and 2025. It successfully classifies phases R, S, and T into the "Poor" category. Model validation yields an error of 0.6% and passes monotonicity tests, sensitivity analysis, and boundary testing. Partial discharge is the most dominant parameter with a potential health index reduction of 44.3 points. The main novelty is integrating the three dielectric parameters into a Mamdani fuzzy model adapted to MELCO and IEC standards for generators in tropical environments.
Analisis Ketidakseimbangan Beban terhadap Kerugian Daya pada Transformator Distribusi 20 kV Menggunakan Software ETAP Maulana Muslimin; Agung Trihasto; Deria Pravitasari; Andriyatna Agung Kurniawan
Jurnal Teknik Elektro dan Komputasi (ELKOM) Vol. 8 No. 1 (2026): Jurnal Teknik Elektro dan Komputasi (ELKOM)
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/elkom.v8i1.4948

Abstract

Abstract - Load imbalance in distribution transformers can lead to an increase in neutral current and power losses, thereby reducing the efficiency of the electric power distribution system. This condition was identified in six 20 kV distribution transformers on the SGN 04 feeder in Magelang, with initial load imbalance levels of 23.02% at M1-35A-2A, 22.7% at M1-44-26-4-A, 12.79% at M1-44-34, and the highest value of 54.33% at M1-44-9. This study aims to analyze the effect of load imbalance on neutral current and power losses and to evaluate the effectiveness of load balancing through inter-phase load relocation. The methods employed include load current measurements conducted over five days, symmetrical component calculations using GNU Octave, and Unbalanced Load Flow simulations using ETAP software to validate the calculation results. The results show that load imbalance has a significant impact on power losses, as indicated by an initial neutral current of up to 148.142 A at transformer M1-44-9 and power losses reaching 21.0245 kW. After load balancing was implemented, all transformers exhibited significant improvement, with load imbalance values reduced to below 3%, for example, M1-35A-2A decreased to 1.33%, M1-44-31 to 1.35%, and M1-44-9 to 0.45%. In addition, the neutral current was significantly reduced, such as at M1-44-9, where it decreased from 148.14 A to 11.84 A, and the remaining power losses were only in the range of 0.0068–0.1343 kW. Therefore, the load relocation strategy is proven to be effective in reducing load imbalance, neutral current, and power losses in accordance with SPLN 17:2014, while also improving the stability of the distribution system. Keywords : Load Imbalance, Distribution Transformer, Power Loss, ETAP, GNU Octave.
Co-Authors Andriyatna Agung Kurniawan Deria Pravitasari Dwi Novianto Maulana Muslimin Mikael Sihite Muhamad Arief Afandy Risky Via Yuliantari