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All Journal Jurnal Inspirasi Pendidikan Journal on Education Jurnal Review Pendidikan dan Pengajaran (JRPP) Vocational : Jurnal Inovasi Pendidikan Kejuruan
Viverdy Memah
Universitas Negeri Manado
Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences Other

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IMPROVING LECTURE OUTCOMES OF ELECTRICAL TRANSMISSION SYSTEMS THROUGH PROBLEM-BASED LEARNING I Gede Budi Mahendra; Jocke Jonathan Rapar; Viverdy Memah
Jurnal Review Pendidikan dan Pengajaran (JRPP) Vol. 6 No. 4 (2023): Volume 6 No 4 Tahun 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v6i4.20718

Abstract

Tujuan dari penelitian ini adalah untuk meningkatkan hasil perkuliahan Sistem tranasmisi listrik dengan model pembelajaran berbasis masalah di jurusan pendidikan teknik elektro universitas negeri manado. Metode yang digunakan yaitu Quasy eksperimental design. Kemudian rancangan yang dilakukan adalah Pretest-posttest control group design. Setelah dilakukan penelitian dan mendapatkan hasil, maka dapat disimpulkan selama kegiatan proses perkuliahan, ternyata penggunaan pembelajaran dengan model pembelajaran berbasis masalah berpengaruh dalam meningkatkan hasil hasil perkuliahan Sistem tranasmisi listrik mahasiswa dengan perolehan hasil n gain score > dari 0,7 yaitu 0,78 dan n-gain score persenya >0,76. Data yang digunakan dalam penelitian ini berdistribusi normal dan melihat nilai signifikansinya yaitu lebih dari 0,05 sebesar 0,56 dan 0,72. Sebelum diadakan uji asumsi dasar uji soal tes hasil perkuliahan sudah dinyatakan valid dan reliabel dengan tingkat reliabilitas cukup yaitu sebesar 0,52. Hasil ini terbukti dengan penggunaan model pembelajaran berbasis masalah perkuliahan Sistem tranasmisi listrik akan lebih mudah terserap pengetahuan yang diperoleh mahasiswa.
Enhancing The Professionalism Of Vocational High School Teacher Candidates Through The Reflective Learning Model Based On The Unity Of Sciences I Gede Budi Mahendra; Viverdy Memah; Billy Killis; Jocke Jonathan Rapar
Journal on Education Vol 7 No 1 (2024): Journal on Education: Volume 7 Nomor 1 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v7i1.6535

Abstract

The Educational Personnel Training Agency has the responsibility of preparing vocational high school teachers who possess reflective learning skills. Reflective learning involves the practice of engaging in reflective thinking, where individuals delve into their experiences in order to gain fresh insights and appreciations. This study is motivated by the recognition of the importance of Micro Teaching in shaping aspiring vocational high school teachers. To address this concern, it is essential to develop a reflective learning model that is rooted in the Unity of Sciences, which will aid in the preparation of these candidates. The aim of this study is to establish a reflective learning model, grounded in the Unity of Sciences, that will contribute to the growth of professional vocational high school teachers. The research methodology employs a development model design, which encompasses various stages including initial investigation, design, implementation, testing, evaluation, revision, and widespread implementation. The findings of this study indicate that the developed reflective learning model, based on the Unity of Sciences, is valid, practical, and effective in enhancing the competitiveness of vocational high school teacher candidates in the era of digital revolution.
ANALISIS HARMONISA ARUS DAN TEGANGAN DARI VARIABEL SPEED DRIVE (VSD) TERHADAP PROFIL TEGANGAN DI JARINGAN DISTRIBUSI PT. PLN ULP TOMOHON MELALUI STUDI SIMULASI SOFTWARE ETAP Novitri Taroreh; Janne Deivy Ticoh; Viverdy Memah; Fransiskus Seke; Ridwan Ridwan; Jocke Rapar
VOCATIONAL: Jurnal Inovasi Pendidikan Kejuruan Vol. 6 No. 2 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/vocational.v6i2.10111

Abstract

Power quality is a critical factor in maintaining the reliability and efficiency of modern power systems, particularly in distribution networks that extensively utilize power electronic equipment. One of the primary sources of harmonic distortion is the use of Variable Speed Drives (VSDs), which operate as non-linear loads and cause current and voltage waveforms to deviate from their ideal sinusoidal shape. This study aims to analyze the harmonic characteristics generated by VSDs in the distribution system of PT. PLN ULP Tomohon, determine the levels of Total Harmonic Distortion of current (THD-I) and voltage (THD-V), and evaluate the effectiveness of harmonic mitigation using a passive single-tuned harmonic filter. The research employs a descriptive quantitative approach through modeling and simulation of the power system using the Electrical Transient Analyzer Program (ETAP) software. Technical system data, including transformer capacity, distribution network configuration, and load parameters, are modeled in the form of a Single Line Diagram (SLD) and analyzed using the Harmonic Load Flow module. The simulation results indicate that VSD operation produces dominant harmonics at the 5th and 7th orders, which significantly increase the THD levels within the system. The implementation of a passive single-tuned harmonic filter is shown to effectively reduce harmonic distortion, allowing the THD-I and THD-V values to approach or comply with the limits specified in the IEEE 519-2014 standard. Therefore, the application of appropriate harmonic mitigation methods can improve power quality, enhance energy efficiency, and increase the reliability of electrical power systems in distribution networks.
Inquiry Training with WhatsApp for Learning in Vocational Schools I Gede Budi Mahendra; Jocke Jonathan Rapar; Viverdy Memah; Billy Killis
Jurnal Inspirasi Pendidikan Vol 14 No 2 (2024): Agustus 2024
Publisher : Fakultas Ilmu Pendidikan Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/jip.v14i2.11115

Abstract

Learning at vocational schools aims to prepare the younger generation for work or entrepreneurship. However, in Indonesia, vocational school graduates are the highest contributor to unemployment, namely 9.6%. To increase the competitiveness of graduates, vocational schools must improve the quality of education and vocational skills, especially scientific and mathematical process skills. The objective of this research is to assess the influence of incorporating the WhatsApp-assisted inquiry training on the science process skills and mathematical representation abilities of vocational school students enrolled in the electricity skills program. The study was carried out as a quasi-experiment employing a non-equivalent control group design. A saturated sample of 85 respondents from three classes, including one experimental class and two control classes, was utilized. Prior to the intervention, a pretest was administered. The experimental class received the inquiry training with WhatsApp, while the control class 1 received the inquiry training, and the control class 2 received the direct instruction. The findings of the study indicate that the inquiry training with WhatsApp yields a positive impact and is more effective in enhancing the science process skills and mathematical representation abilities of vocational school students in comparison to the inquiry training model and the direct instruction model, achieving an mean score of 84.16 and an N-Gain score of 0.72 in the high category.
Co-Authors Billy Killis Fransiskus Seke I Gede Budi Mahendra I Gede Budi Mahendra Janne Deivy Ticoh Jocke Jonathan Rapar Jocke Rapar Novitri Taroreh Ridwan Ridwan