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All Journal Emitor: Jurnal Teknik Elektro
Marselino Pakorong
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Engineering

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Journal : Emitor: Jurnal Teknik Elektro

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Design of an Arduino-Based Inverse Type Overcurrent Relay susilo, rizky; Marselino Pakorong; Priyo Handoko Chusnama Ali
Emitor: Jurnal Teknik Elektro Vol 25, No 3: November 2025
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v25i3.13676

Abstract

Abstract An overcurrent relay is an important device in protection systems to protect electrical equipment from damage caused by excessive overcurrent. The objective of this study is to design and implement an overcurrent relay system that can detect and mitigate overcurrent using the inverse time protection principle, developed using the popular and accessible Arduino platform. An overcurrent relay (OCR) is an electrical protection device that operates based on overcurrent detection. There are two main characteristics, namely inverse time and constant time.Inverse Time Relay cuts off overcurrent with an operating time that increases as the current increases, while Constant Time Relay has a fixed operating time. This research discusses the working principles, differences in characteristics, and applications of both types of relays to improve the effectiveness of protection in electrical power systems.
Co-Authors Priyo Handoko Chusnama Ali susilo, rizky