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All Journal G-Tech : Jurnal Teknologi Terapan
Sepannur Bandri
Institut Teknologi Padang, Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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Rancang Bangun Alat Pengukur Suhu Tubuh Non Contact dilengkapi dengan Dispenser Hand Sanitizer Otomatis Sepannur Bandri; Rafika Andari; Andi Muhammad Nur Putra; Anggun Kemala; Zuriman Anthony
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3519

Abstract

Body temperature measurements in certain hospitals still rely on Thermogun alongside the manual use of hand sanitizers. However, this manual approach is considered inefficient due to the repeated touching of its upper handle, which increases the risk of virus transmission among visitors. Therefore, the objective of this research is to transform the Thermogun into a contactless human body temperature measuring device, equipped with an automatic hand sanitizer dispenser and a hand sanitizer residue detector. This tool will utilize fuzzy logic algorithms to enhance accuracy, efficiency, and cost-effectiveness in temperature measurement. The design of this tool will incorporate a non-contact body temperature sensor like MLX9016, with an Infrared sensor serving as a trigger for temperature readings. Consequently, it is anticipated that the results of this research will yield a more sophisticated, responsive, and still accurate temperature measurement solution through the utilization of the MLX90614 temperature sensor.
Analisa Pengaruh Arus Bocor Terhadap Total Harmonic Distortion Pada Isolator 150 kV Yang Terkontaminan Lumut Menggunakan Transformasi Fourier Rachmat Deska Saputra; Sitti Amalia; Yusreni Warmi; Sepannur Bandri; Andi M Nur Putra
G-Tech: Jurnal Teknologi Terapan Vol 8 No 4 (2024): G-Tech, Vol. 8 No. 4 Oktober 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v8i4.5476

Abstract

This study investigates the Total Harmonic Distortion (THD) of 150 kV insulators contaminated with moss based on leakage current patterns with three variations of test voltages, namely 10,578 V, 21,063 V, dan 30,569 V. The tests were conducted experimentally at the High Voltage Laboratory of Gajah Mada University with a temperature of 28.2 °C dan humidity of 57.8%. The test was conducted experimentally at the High Voltage Laboratory of Gajah Mada University with a temperature of 28.2°C dan humidity of 57.8%. The analyzed parameters include waveform, frequency spectrum (FFT), dan THD, which were calculated using Fast Fourier Transform (FFT) through NI DIAdem software. The test results showed no strong relationship between leakage current dan THD. At a leakage current of 0.103 mA, the resulting THD is 21.84%, while at a current of 0.207 mA produces a THD of 18.27%, dan 0.306 mA produces a THD of 36%. Based on the IEEE STD 519-2014 stdanard, THD on 150 kV insulators contaminated with moss exceeds the maximum limit of 15%, so this insulator is not safe to use on the Koto Panjang-Payakumbuh transmission line.
Medium and Low Voltage Quality Improvement with Shunt Bank Capacitor and Transformer Tap on Morocco Tapung Feeder Duri Sepannur Bandri; Liliana Liliana; Rafika Andari; Zuriman Anthony
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7021

Abstract

Voltage and frequency quality are paramount in 20 kV distribution systems that supply both medium and low voltage feeders. This study explores the significant voltage deficiency in the Maroko Tapung extension of PT PLN (PERSERO), ULP Duri, which dropped 16% from the nominal value. The main objective is to implement a comprehensive voltage restoration strategy to improve the efficiency of the 20 kV distribution system so that it reaches a better standard. The restoration was carried out by setting tap changers, installing shunt capacitor banks, and gradually increasing the tap settings on distribution transformers. Simulation results show a significant improvement in the minimum voltage level across the network, with the lowest voltage on the medium voltage side increasing to 91.69% and on the low voltage side to 90.47%. These outcomes demonstrate that the implemented multi-stage restoration procedures effectively brought the voltage quality within the acceptable limits defined by SPLN 1: 1987 standards, which permit a deviation of +5% and -10% from the nominal voltage. This study highlights the effectiveness of combined tap adjustments and shunt capacitor installation in mitigating voltage drops and ensuring compliance with regulatory standards in distribution systems.
Co-Authors Anggun Kemala Liliana Liliana Putra, Andi M. Nur Rachmat Deska Saputra Rafika Andari Yusreni Warmi Zuriman Anthony