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All Journal Jurnal Edukasi Elektro Jurnal Informatika dan Teknik Elektro Terapan CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Journal on Education Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Innovative: Journal Of Social Science Research Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Wardhana, Alex Sandria Jaya
Universitas Negeri Yogyakarta
Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Other

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STUDI POWER QUALITY DI BALAI LATIHAN PENDIDIKAN TEKNIK (BLPT) YOGYAKARTA Alex Sandria Jaya Wardhana
Jurnal Edukasi Elektro Vol 3, No 2 (2019): Jurnal Edukasi Elektro, Volume 3, Nomor 2, 2019
Publisher : JPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.269 KB) | DOI: 10.21831/jee.v3i2.28857

Abstract

The quality of electrical power is a common condition that describes the characteristics of the parameters of electrical quantities. This study aims to determine the power quality profile that includes current, voltage, active power , reactive power , apparent power, frequency , harmonic current and voltage harmonics. Power quality profile is done by measuring for 24 hours to determine the characteristic qualities of the object of research in Balai Latihan Pendidikan Teknik (BLPT) Yogyakarta. Measurements were taken at each of output transformer 250 kVA at BLPT Yogyakarta . Based on the measurement results , the total peak load for loading in BLPT Yogyakarta is 129.242,45 VA or equal to 51.70% of the installed transformer capacity. The most prominent conditions of measurement results are any indication of the current flow in the neutral wire is high enough, ie 103,05 amperes, which will impact on the value of the energy loss in the neutral wire and losses in the transformer.
Analisis Penilaian Mahasiswa terhadap Media Pembelajaran Jobsheet Praktik Proteksi Tenaga Listrik Menggunakan Software Ecodial Nur Aida Puspa Dewi; Eko Swi Damarwan; Alex Sandria Jaya Wardhana
Journal on Education Vol. 2 No. 4 (2020): Journal on Education: Volume 2 Nomor 4 Tahun 2020
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v2i4.8225

Abstract

This study aims to analyze student assessments of the jobsheet learning media for Electrical Power Protection Practice based on Ecodial software. The research employs the Research and Development (R&D) method using the ADDIE model. The jobsheet is designed to enhance students' understanding and skills in low-voltage distribution network protection. Data were obtained through questionnaires measuring the feasibility, ease of use, and benefits of the learning media. The results indicate highly positive evaluations, with an average score of 87% for feasibility, 85% for ease of use, and 90% for benefits. The jobsheet based on Ecodial software has proven effective in helping students comprehend technical concepts, increasing motivation for independent learning, and developing analytical skills. Based on these findings, this media is deemed effective in supporting Electrical Power Protection Practice learning and can serve as a reference for developing technology-based instructional media in the field of electrical engineering.
Analisis Sistem Tata Cahaya pada Bangunan Gedung XYZ Dewi, Nur Aida Puspa; Nugroho, Teguh Wiji; Wardhana, Alex Sandria Jaya; Damarwan, Eko Swi
Innovative: Journal Of Social Science Research Vol. 1 No. 1 (2021): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i1.18060

Abstract

This study analyzes the lighting system of XYZ Building based on the lighting standard SNI 6197:2020. Based on the measurement results, the majority of rooms have light intensity below the established standard. The primary contributing factors include the use of inappropriate lamp types, an insufficient number of lighting points, dark-colored walls that absorb light, and a lack of proper lamp maintenance. The analysis indicates that although the lighting power per square meter is relatively efficient, visual comfort is not achieved. Recommended improvements include replacing old lamps with high-intensity LED lights, adjusting the lamp layout, and changing wall colors to enhance light reflectivity. The implementation of these recommendations is expected to improve lighting quality, ensuring compliance with the established standards. This study provides a crucial foundation for improving lighting systems in similar buildings to enhance energy efficiency and user comfort.
Power Consumption Analysis and Evaluation of Energy Saving Potential of Lighting System in DEF Building Wardhana, Alex Sandria Jaya; Zamtinah; Sukisno, Toto; Yuniarti, Nurhening; Bachrun, Muhammad Al Azis
Jurnal Edukasi Elektro Vol. 9 No. 1 (2025): Jurnal Edukasi Elektro Volume 9, No. 1, May 2025
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v9i1.85443

Abstract

This study aims to analyze power consumption and evaluate the potential energy savings of the lighting system in the DEF Building, which has various room functions including offices, laboratories, meeting rooms, and libraries. The study was conducted with a descriptive quantitative approach based on field measurement data. Data collection includes measuring lighting intensity (lux), inventory of types and number of lamps, and power consumption (watt). The measurement results were compared with the Indonesian National Standard SNI 6197:2020 to assess the minimum lighting level and maximum power limit. In addition, a simulation of replacing conventional lamps with LED lamps was carried out using Dialux Evo software. The results showed that most rooms had power consumption per square meter that was still efficient (<12 W/m²), but many rooms did not meet the minimum lighting standards. The simulation of replacing lamps with LEDs resulted in significant power savings, with a total reduction in energy consumption of 928.93 kWh per month or equivalent to electricity cost savings of around Rp1,362,997.48. Replacing lamps was also able to improve the quality of lighting in rooms that previously did not meet the standards. This study shows that effective lighting system management through LED lamp retrofitting can be an important strategy in supporting building energy efficiency.
The Effect of Luminous Intensity, Humidity, and Temperature on The Output Voltage of Solar Panels Damarwan, Eko Swi; Hakim, Muhammad Luthfi; Wardhana, Alex Sandria Jaya; Budiastuti, Pramudita
Jurnal Edukasi Elektro Vol. 7 No. 1 (2023): Jurnal Edukasi Elektro, Volume 7, Nomor 1, 2023
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v7i1.60179

Abstract

Solar Power Plant is a power plant by utilizing sunlight. In this study, the focus is on the use of off-grid solar power systems. The purpose of this study is to determine the effect of luminous intensity, humidity, and temperature on the output voltage of a solar power plant. The research method used is experimental. The maximum output voltage of the solar panel is 19.2 V obtained at 01.00 pm. During these conditions, the luminous intensity value is 121000 lux at an air humidity of 52.4% with a temperature of 40.50C. The results showed that (1) the greater the luminous intensity, the greater the output voltage of the solar panel. (2) If the greater the humidity, the smaller the output voltage of the solar panel. (3) If the greater the temperature, the greater the output voltage of the solar panel.
Identification of Energy Saving Potential Through Energy Audit at PT. ABC Wardhana, Alex Sandria Jaya; Damarwan, Eko Swi
Jurnal Edukasi Elektro Vol. 7 No. 1 (2023): Jurnal Edukasi Elektro, Volume 7, Nomor 1, 2023
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v7i1.61657

Abstract

Increasing energy efficiency is one of the most important functions for reducing energy costs as well as production costs. One way to reduce the use of electrical energy consumption is by saving energy. This study aims to determine how much energy savings at PT ABC through an energy audit. An energy audit is carried out with two main activities, namely identifying the profile of patterns of electricity use and analysis of power quality. The results of the analysis are then expected to be the basis for knowing the potential for energy savings and energy conservation in the industry. The method used in this study begins with field observations, measurements of electrical systems, and measurements of production machines and production support equipment. Based on some data, both primary data and secondary data, an analysis is carried out through calculations to determine potential energy-saving opportunities. The main energy source used at PT. ABC is from PLN with 1 subscription to a 3-phase system with an installed power of 197 kVA. Energy use or consumption for a year is 804,279.97 kWh. Opportunities for energy savings through energy audits that have been carried out are expected to have an impact on the company, namely energy cost savings of IDR 137,344,162 per year
STUDI KUALITAS DAYA LISTRIK (POWER QUALITY) DI BANGUNAN GEDUNG XYZ Nugroho, Teguh Wiji; Mustaqim, Ilmawan; Sandria Jaya Wardhana, Alex
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 2 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i2.6563

Abstract

Penelitian ini bertujuan untuk mengkaji kualitas daya listrik di Bangunan Gedung XYZ melalui analisis parameter utama seperti tegangan, arus, daya aktif, daya reaktif, dan faktor daya. Pengukuran dilakukan secara langsung pada panel Main Distribution Panel (MDP) 33 kVA dan 11 kVA menggunakan instrumen Power Quality Analyzer. Metode analisis yang digunakan berfokus pada evaluasi distribusi beban antar fasa, efisiensi pemanfaatan daya, serta identifikasi potensi gangguan operasional akibat ketidakseimbangan beban dan konsumsi daya reaktif. Hasil pengukuran menunjukkan adanya ketidakseimbangan tegangan dan arus yang signifikan antar fasa, serta distribusi daya aktif dan reaktif yang tidak merata, khususnya pada fasa T. Ketimpangan ini berdampak pada tingginya arus netral, peningkatan rugi daya, dan pembebanan berlebih pada salah satu sisi sistem. Nilai faktor daya pada fasa tertentu juga menunjukkan indikasi beban induktif dominan yang menurunkan efisiensi sistem secara keseluruhan. Temuan ini mengindikasikan perlunya penataan ulang beban serta penerapan strategi kompensasi daya reaktif yang adaptif guna menjaga keandalan dan efisiensi sistem distribusi listrik gedung secara menyeluruh. 
Empowering community-based water and sanitation services through solar photovoltaic systems: A pathway to energy self-sufficiency Nurhening Yuniarti; Andik Asmara; Alex Sandria Jawa Wardhana; Eko Swi Damarwan; Maris Setyo Nugroho
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol. 10 No. 2 (2025): May 2025
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v10i2.14964

Abstract

Banyu Bening, an independent community group providing clean water and sanitation services, faces challenges related to energy consumption and water distribution management. The primary issue addressed was the high electricity cost for operating water pumps during the early stages of the business. This problem was particularly critical as the group was newly established and required appropriate technology to overcome these obstacles. Therefore, the main objective of this Community Service Program was to address Banyu Bening’s problems—specifically, the high electricity consumption and low water pressure in the distribution network. The problem-solving process involved several steps: situation analysis, focus group discussions (FGD), material identification, assembly and testing, installation, community socialization, and evaluation. The implemented solution was the installation of a 2kWp solar power system. The final assessment revealed that the system operates optimally, successfully reducing electricity costs by 70 percent.
Development of a Piezoelectric-Based Hand-Pressure Generator for Green Technology Education Damarwan, Eko Swi; Abrori, Aulia Farhad Tria Nur; Budiastuti, Pramudita; Wardhana, Alex Sandria Jaya
Circuit: Jurnal Ilmiah Pendidikan Teknik Elektro Vol. 10 No. 2 (2026)
Publisher : PTE FTK UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/xmmppc33

Abstract

This study aims to develop a piezoelectric-based Hand-Pressed Generator as a green technology learning medium to support renewable energy competencies in vocational education. The research employed a Research and Development approach using the ADDIE model, which consists of analysis, design, development, implementation, and evaluation stages. The prototype was designed to convert mechanical energy from hand pressure into electrical energy using piezoelectric sensors integrated with rectifier circuits, a boost converter, and a microcontroller-based monitoring system. Functional testing was conducted by applying different pressure frequencies (30, 60, 90, and 120 presses per minute) to analyze the generated output voltage. The results indicate that the prototype successfully produced electrical output ranging from 0.7 VDC to 3.6 VDC, demonstrating a positive relationship between pressure frequency and generated voltage. Validation by subject-matter and media experts showed feasibility scores of 86.5% and 84.5%, respectively, while user feasibility testing among electrical engineering students reached 88.25%, indicating that the prototype is categorized as very feasible for learning. The findings suggest that the developed Hand-Pressed Generator can serve as an effective instructional medium for demonstrating micro-scale energy harvesting concepts and supporting green technology education in vocational learning environments.
Implementasi Sistem Monitoring Tanah dan Pengendalian Hama untuk Meningkatkan Produktivitas Pertanian Hortikultura di Kelompok Tani Tunas Muda Wonosobo Jawa Tengah: Penelitian Alex Sandria Jaya Wardhana; Eko Swi Damarwan; Annisa Latifa
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 3 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 3 (Januari 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i3.4703

Abstract

Horticultural farming in Indonesia faces recurring pest attacks and declining soil fertility, which lower productivity. This study implemented an 8-in-1 sensor-based soil monitoring system and pest control using solar-powered UV traps at the Tunas Muda Farmers Group in Wonosobo, Central Java, which cultivates potatoes, cabbage, and carrots. Despite its ideal geographical conditions, productivity is still constrained by technical factors. A quantitative method with an experimental design compared land conditions before and after the technology implementation, with data collected through mobile-based IoT sensors. Results showed that the soil monitoring system increased fertilizer efficiency by 35%, while the UV traps reduced pest populations by 42% and chemical pesticide use by 45%. This research contributes to the development of environmentally friendly horticultural smart farming in Indonesia, particularly in the highlands.
Co-Authors Abrori, Aulia Farhad Tria Nur Andik Asmara Annisa Latifa Bachrun, Muhammad Al Azis Budiastuti, Pramudita Dewi, Nur Aida Puspa Eko Swi Damarwan Eko Swi Damarwan Hakim, Muhammad Luthfi Maris Setyo Nugroho Muchtar Abdul Aziz Mustaqim, Ilmawan Nugroho, Teguh Wiji Nur Aida Puspa Dewi Nurhening Yuniarti Toto Sukisno Zamtinah Zamtinah