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Faris Alfarisi
Universitas Islam Negeri Ar-Raniry

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Penerapan Alat Peraga Thermal Overload Relay dalam Praktikum Pengendalian Motor Listrik (The Implementation of a Thermal Overload Relay Demonstration Tool in Electric Motor Control Practicum) Faris Alfarisi; Hari Anna Lastya
JURNAL EDUNITRO Jurnal Pendidikan Teknik Elektro Vol. 6 No. 2 (2026): October Issue
Publisher : Department of Electrical Engineering Education - Faculty of Engineering - State University of Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.68437/jejpte.v6i2.15

Abstract

This study aimed to examine the implementation of a Thermal Overload Relay (TOR) training aid in an Electric Motor Control Laboratory and to determine changes in students’ understanding of the function, current setting, and working principles of motor overload protection. A quantitative approach with a quasi-experimental One Group Pretest–Posttest design was employed. The participants were 12 students in an Electrical Engineering Education program. Data were collected through pretests, posttests, and a student response questionnaire. The data were analyzed using mean scores, mastery percentages, Normalized Gain (N-Gain), and student response percentages. The mean score increased from 70.83 in the pretest to 79.17 in the posttest, while the mastery rate increased from 66.67% to 83.33%. The mean N-Gain was 0.38, indicating a moderate level of improvement. Student responses to the training aid reached 78.33%, categorized as agree. These findings indicate improved understanding following hands-on learning with the TOR, although the improvement varied among students. The study was limited to 12 students and did not include a comparison group; therefore, the observed improvement cannot be attributed solely to the TOR training aid. The findings imply that TOR-based practical learning should be accompanied by demonstrations, repeated practice, and instructional guidance to support more consistent conceptual and practical learning outcomes.