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All Journal Journal of Electrical Engineering and Computer (JEECOM) Electrician : Jurnal Rekayasa dan Teknologi Elektro
Fitriono fitriono
Universitas Muhammadiyah Lampung
Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Perencanaan Sistem Loop Jaringan 20 kV Menggunakan Load Breaking Switch Motorized di Penyulang Sawit, Jati dan Pala Fitriono fitriono; Dasweptia D; Hamimi H
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 17 No. 1 (2023)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v17n1.2218

Abstract

ABSTRAK Perencanaan Sistem Loop Jaringan 20 kV Menggunakan LBS (Load Breaking Switch Motorized) di PenyulangSawit, Jati dan Pala. Program Studi Teknik Elektro Fakultas Teknik Universitas Muhammadiyah Lampung. Setiap jaringan tegangan menengah 20 kV termasuk jaringan penyulang Sawit, Jati dan Pala pasti akan mengalami pemadaman untuk proses pemeliharaan secara berkala, selain itu dengan kondisi jaringan yang relatif panjang yaitu penyulang Sawit 78,4 KMS, penyulang Jati 45,8 KMS dan penyulang Pala 130,1 KMS maka potensi akan terjadi gangguan pada jaringan penyulang Sawit, Jati dan Pala cukup tinggi. Berdasarkan kondisi pemeliharaan dan potensi gangguan yang akan terjadi serta konfigurasi jaringan eksisting yang tidak memungkinkan untuk dimanuver maka penyaluran energi listrik ke pelanggan menjadi tidak handal. Untuk mendapatkan jaringan tegangan menengah yang handal tentunya perlu dilakukan analisis, evaluasi dan simulasi kehandalan jaringan dalam menghadapi kondisi-kondisi pemeliharaan dan gangguan. Karena tingginya ENS (Energy Not Supplied) yang ditimbulkan pada simulasi kondisi eksisting maka dilakukan perencanaan pemasangan LBSM pada titik manuver penyulang atau titik pertemuan penyulang yaitu LBSM Dono Mulyo (pertemuan penyulang Sawit dan Pala) dan LBSM BD 8 (pertemuan penyulang Jati dan Pala), selain itu untuk mempercepat waktu pengusutan gangguan maka juga dilakukan resetting dan pengaktifan fungsi sectionalizer pada LBSM yang menjadi pembatas setiap section di penyulang.
Sistem Monitoring Konsumsi Daya Listrik Berbasis IoT untuk Efisiensi Energi pada Gedung PENMARU Universitas Muhammadiyah Lampung Yudi Eka Putra; Oktavia Eka Rahayu; Yenni Afrida; Jeckson Jeckson; Fitriono Fitriono; Sri Suryani
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 20 No. 2 (2026)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v20n2.3199

Abstract

Abstract. Electrical energy usage in buildings with three-phase distribution systems requires proper monitoring to ensure energy consumption can be controlled effectively and efficiently. Common problems in building electrical systems include load imbalance between phases, delayed fault detection, and manual monitoring processes that prevent real-time observation of power consumption conditions. This study aims to design and develop an Internet of Things (IoT)-based electrical power consumption monitoring system for the PENMARU Building of Muhammadiyah University of Lampung using the PZEM-004T sensor and ESP32 microcontroller. The system was designed to monitor electrical parameters such as voltage, current, active power, electrical energy, and power factor in a three-phase electrical system in real-time through an IoT-based monitoring dashboard. The research method used in this study was Research and Development (R&D), which included system design, hardware and software implementation, system testing, and analysis of measurement results. The results showed that the system was able to monitor electrical parameters in real-time with a measurement error below 1%. The seven-day testing results indicated that the average power on phase R was 74.86 W, phase S was 225.64 W, and phase T was 51.01 W, with total electrical energy consumption reaching 47.06 kWh. In addition, the system successfully transmitted monitoring data stably through a Wi-Fi network and displayed the data on the IoT dashboard in real-time. Therefore, the proposed monitoring system is considered capable of supporting more effective, responsive, and efficient electrical energy consumption monitoring.
Sesame Oil with Butylated Hydroxyanisole as a Candidate Natural Ester for Transformer Insulation Yenni Afrida; Carla Maretha; Fitriono Fitriono
Journal of Electrical Engineering and Computer (JEECOM) Vol 8, No 2 (2026)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v8i2.17036

Abstract

This study evaluates sesame oil modified with butylated hydroxyanisole (BHA) as a candidate eco-friendly transformer insulating liquid. Ten formulations were prepared using 500 mL sesame oil with 1-10 g BHA. Viscosity was measured using a rotational viscotester, and the laboratory-reported kinematic values were treated as estimates derived from the direct viscosity readings. Alternating-current breakdown voltage (BDV) was measured five times for each formulation, and differences among BHA loadings were evaluated using one-way analysis of variance. The estimated kinematic viscosity ranged from 33.33 to 42.59 cSt and generally decreased as BHA loading increased. The highest mean BDV was obtained at 3 g BHA/500 mL (30.24 +/- 7.94 kV), whereas the 10 g formulation showed the lowest estimated viscosity (33.33 cSt) and the second-highest BDV (25.58 +/- 3.38 kV). BDV exhibited a non-monotonic response to BHA loading. One-way ANOVA indicated significant differences among formulations (F(9,40)=7.98, p<0.001). The results identify 3 g BHA/500 mL as the most promising formulation in the current screening because it combined the highest dielectric performance with moderate viscosity. Further validation with BHA-free sesame oil, mineral-oil controls, independent formulation batches, measured density, moisture, acidity, and direct kinematic-viscosity testing is required before transformer application.
Co-Authors Carla Maretha Dasweptia D Hamimi H Jeckson Jeckson Oktavia Eka Rahayu Sri Suryani Yenni Afrida Yudi Eka Putra