# Design of an Overcurrent Protection System Using a Mini PLC for Three-Phase Induction Motors in Process Machines
> A Fadhiil Apriansyah Z.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_105037678575
Jurnal / Konferensi: Proceeding Isiber 2026 International Seminar on Intelligent Business and Edge Computing Research
Tahun terbit: 2026
DOI: https://doi.org/10.1109/ISIBER68248.2026.11470540
Citations: 0

## Authors
- A Fadhiil Apriansyah Z.

## Abstract
Three-phase induction motors play a crucial role in industrial manufacturing due to their durability, cost-effectiveness, and minimal maintenance needs. Nevertheless, instances of overcurrent in inverters are still prevalent, particularly in deep frying applications, which can lead to motor impairments, unanticipated operational interruptions, and resultant production deficits. Between the years 2021 and 2023, there were seven documented overcurrent occurrences in frying motors, culminating in a cumulative downtime of 1.539 minutes, in addition to fifteen incidents involving damage to bowls and covers that caused further downtime of 2.431 minutes. This research endeavor seeks to investigate the underlying causes of overcurrent disturbances and to devise strategies aimed at enhancing machinery reliability at food processing industry. The methodologies employed encompass experimental evaluations conducted through simulations simulating no-load and blocked rotor conditions, alongside the analysis of current characteristics pertaining to three-phase induction motors. An automatic control system predicated on a mini PLC was conceived and executed to facilitate the early detection of disturbances, thereby averting potential failures. The outcomes of the implementation indicate that the developed system effectively diminishes the incidence of failures, minimizes downtime, and enhances the stability of machine operations. The incorporation of this control mechanism not only fortifies motor protection and management protocols but also prolongs the lifespan of components. This sophisticated control methodology presents a viable, applicable, and replicable solution for other sectors utilizing induction motors, while simultaneously contributing both theoretically to the evolution of control strategies and practically to industrial operational efficiency.

## Keywords
- Overcurrent
- Induction motor
- Process (computing)
- Computer science
- Engineering
- Automotive engineering
- Control engineering
- Control system
- Machine control
- Reliability (semiconductor)
- Electric motor
- Process control
- Programmable logic controller
- Transient (computer programming)

---
Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
Saat mengutip, gunakan DOI bila tersedia atau URL kanonis di atas.