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All Journal Jurnal Teknologi Elektro JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Journal of Community Empowerment
Derman, Derman
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Computer Science & IT Education Electrical & Electronics Engineering Environmental Science Public Health Social Sciences

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Pelatihan Pengukuran Menggunakan Alat Ukur Listrik bagi Siswa SMK Walisongo Semarang Erlinasari, Erlinasari; Jayati, Ari Endang; Derman, Derman
JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Vol 5, No 2: Agustus (2024)
Publisher : ICSE (Institute of Computer Science and Engineering)

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Abstract

Abstrak: Kemampuan mengoperasikan alat ukur listrik menjadi esensial bagi siswa SMK jurusan Teknik Listrik untuk menunjang praktik di lapangan. Namun, keterbatasan pengetahuan dan pengalaman praktik di sekolah seringkali menjadi kendala. Pelatihan ini bertujuan untuk meningkatkan keterampilan dan pengetahuan siswa SMK Walisongo Semarang dalam mengoperasikan alat ukur listrik, khususnya multimeter, untuk mengukur besaran tegangan dan arus. Pelatihan dilaksanakan pada 7 Mei 2024 dengan 44 peserta dari kelas X. Kegiatan meliputi persiapan, penyampaian materi, praktik pengukuran, dan evaluasi. Pelatihan menunjukkan peningkatan keterampilan penggunaan alat ukur listrik peserta sebesar 88%. Peserta mampu mengoperasikan multimeter dengan baik dan memahami cara mengukur tegangan dan arus. Diharapkan pelatihan ini dapat meningkatkan kesiapan siswa dalam menghadapi praktik di lapangan dan menunjang pembelajaran di sekolah.Abstract: Operating electrical measuring instruments is essential for vocational school students majoring in electrical engineering to support their field practices. However, limited knowledge and practical experience at school often become an obstacle. This training aims to improve the skills and knowledge of SMK Walisongo Semarang students in operating electrical measuring instruments, especially multimeters, to measure voltage and current quantities. The training was conducted on May 7, 2024, with 44 participants from class X. The activities included preparation, material delivery, measurement practice, and evaluation. The training showed an 88% increase in participants' skills in using electrical measuring instruments. Participants were able to operate the multimeter properly and understand how to measure voltage and current. It is hoped that this training can improve students' readiness to face field practices and support learning at school.
Analisa AC Power Automatic Switch Module dengan Metode Dual Power PLN dan Panel Surya Sadewa, Ery; Hilal, Yusuf Nurul; Derman, Derman
Jurnal Teknologi Elektro Vol 15, No 2 (2024)
Publisher : Electrical Engineering, Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jte.2024.v15i2.004

Abstract

Power outages can cause disruption of service continuity, especially in service activities in the trade, hospitality, hospital, and industrial sectors. Today the distribution of PLN's electrical energy often fails in distribution due to internal and external factors, to meet the need for continuity of electrical energy, other sources of electrical energy are needed so that if there is a power outage from PLN, consumers' needs for electrical energy are not disturbed. These sources of electrical energy are temporary to serve the electrical load in the utilization of PLN's electrical energy as the main energy source. ATS (Automatic Transfer switch) is a tool that functions to move connections between one electric voltage source and another voltage source automatically or can also be called Automatic COS (Change Over Switch), a one-phase ATS by getting more economical and easy results in maintenance. ATS in this tool can work well in the switching process manually or automatically. When PLN has an outage, there is a time delay of ± 7 seconds before the energy from the solar cell starts. This aims to keep the components from being damaged in the event of an outage.
Innovation of Hybrid Solar and Gas-Powered Maggot Dryer Machine as a Solution for Dry Feed Pinandita, Satria; Jayati, Ari Endang; Derman, Derman; Elawati, Nunung Eni; Ramadan, Bimastyaji Surya
Journal of Community Empowerment Vol. 5 No. 1 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i1.19313

Abstract

Sugihmanik Village, a major tofu production center, produces substantial amounts of organic waste, particularly wastewater that contaminates local rivers and disrupts the surrounding ecosystem. A community service program has been developed to convert tofu waste sludge into maggot feed, followed by drying using a hybrid solar and gas-powered maggot drying machine. Initial activities involved program outreach and technical training on maggot cultivation and the drying process. A drying trial demonstrated that 200 grams of wet maggots were reduced to 114 grams within seven minutes. Monthly drying operations required only four 3-kg LPG cylinders, resulting in 81 kilograms of dry maggots and a potential monthly income of IDR 4.050.000. Environmental degradation caused by tofu waste has been significantly mitigated, while local economic productivity has improved. The drying machine enhances the commercial value of maggots as durable livestock feed. The initiative strengthens the operational sustainability of the Krida Manik Waste Bank and offers a scalable model for resource-based environmental solutions.
Co-Authors Ari Endang Jayati Elawati, Nunung Eni Erlinasari, Erlinasari Hilal, Yusuf Nurul Ramadan, Bimastyaji Surya Satria Pinandita Wrahatnala, Ery Sadewa Yudha