Alex Sandria Jaya Wardhana, Totok Heru Tri Maryadi, Eko Swi Damarwan, Toto Sukisno, Muhammad Iqbal Ramadhan
Vocational High School is a form of formal education to focuses more on improving work-ready abilities or competencies in certain areas of expertise. One of the fields is the Electricity sector. To achieve this goal, of course, a quality learning process is needed to prepare graduates with reliable electrical competency to be able to compete in the world of work. The learning process carried out at Vocational Schools is divided into 3, namely theory, practice, and field. One of the skills competencies in Vocational Schools is the Electrical Power Installation Engineering skills competency. Competence related to electrical power protection systems is an important part that needs to be taught to students. Protection systems and electrical protection equipment are always updated, while on the other hand, existing instructional devices are still not updated. The research that will be carried out is development research. This research aims to develop a protective relay instructional device as a medium for increasing student competency using Sepam 1000+ T20. This research was carried out based on the ADDIE and RAD approaches. The ADDIE model is used to develop guidelines for the use of protective relay instructional devices which consist of 5 stages, including a) Analysis b) Design, c) Development, d) Implementation, and e) Evaluation. The RAD (Rapid Application Development) model is used for developing overcurrent relay instructional device hardware which consists of a) Analyzing, b) Prototyping Cycles, c) Test, and d) Implementing. The research results show that the Sepam 1000+ T20 protection relay training kit can be used as a learning medium regarding emergency switches. The results of the training kit feasibility test showed that the training kit was considered very suitable for use with a percentage of 84.00% in terms of motivation, 88.00% in terms of usability, and 90.00% in terms of material. The feasibility of the Sepam 1000+ T20 protection relay training kit is in the "Very feasible" category. © 2025 American Institute of Physics Inc.. All rights reserved.
Department of Electrical Engineering Education, Faculty of Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia
