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All Journal GEMA TEKNOLOGI
Fenty Nurhaliza
Universitas Diponegoro
Computer Science & IT

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Rancang Bangun Sistem Deteksi Dini Titik Panas Dan Proteksi Otomatis Pada PHB-TR Menggunakan Sensor Inframerah MLX90614 Berbasis IoT Fenty Nurhaliza; Yuniarto Yuniarto
Gema Teknologi Vol 21, No 3 (2021): April 2021 - October 2021
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v21i3.90272

Abstract

A rise in temperature at the PHB-TR connection terminals due to loose connections can cause hotspots, which have the potential to disrupt and damage the electrical power distribution system. Therefore, this study aims to design and build a prototype system for the early detection of hotspots and automatic protection of PHB-TRs using an IoT-based MLX90614 infrared sensor. The system is designed using the MLX90614 sensor as a non-contact temperature detector, the ESP32 as the main controller, an LCD for local monitoring, MQTT-based web monitoring for remote monitoring, and a Telegram Bot for notifications. The system can display temperature conditions categorized as normal, warning, and danger, and perform automatic protection by tripping the load when the temperature reaches the danger level. Test results show that the system operates according to the design logic, with an optimal sensor measurement distance of 2 cm, an average sensor calibration error of 1.55%, and an average Telegram Bot notification delay of 1.33 seconds. In addition, the reset feature and safety interlock mechanism also functioned properly, allowing the system to resume operation once the temperature returned to normal. Based on these test results, the designed prototype successfully performed its functions of monitoring, early detection, notification, and automatic protection.
Co-Authors Yuniarto Yuniarto, Yuniarto