Design of An Arduino Uno Based Definite Time Over Current Relay

Vol 8 No 11 (2025): Volume 08 Issue 11 November 2025

Article Date Published : 25 November 2025 | Page No.: 5755-5762 | Google Scholar | Crossref doi for this article

Abstract :

Over Current Relay (OCR) is a protection relay used to detect and cut off electric current when there is excess current (fault current). The definite time type OCR has constant trip time characteristics, regardless of the magnitude of the fault current. OCR is widely used in electric power systems to protect equipment from damage due to fault currents. This final report discusses the design of Arduino Uno-based definite time OCR with the use of PZEM sensor components, I2C LCD, relay module, and Arduino Uno. This system is designed to be able to measure the load current, display the current value on the LCD, and cut off the current when the load current exceeds the specified setting value.

Keywords :

Arduino Uno, Definite time, LCD I2C, Over Current Relay (OCR), PZEM sensor, Relay module.

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How to Cite :

Design of An Arduino Uno Based Definite Time Over Current Relay. Rizky Aprylianto Susilo, Abdul Hamid Kurniawan, Wahyu Setiawan, Syamsul Rizal Fadhil, Geofany Valdano, 8(11), 5755-5762. Retrieved from https://ijcsrr.org/single-view/?id=24546&pid=24394

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