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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Elkom: Jurnal Elektronika dan Komputer Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam INFOKUM Jurnal Scientia Pengabdian Kampus: Jurnal Informasi Kegiatan Pengabdian Pada Masyarakat Jurnal Nasional Teknologi Komputer Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Multidisiplin Sahombu Jurnal Ilmu Kehutanan International Journal of Economic, Technology and Social Sciences (Injects) PEDAMAS (Pengabdian Kepada Masyarakat) Journal Serambi Engineering (JSE) Jurnal Informatika Logika
Haris Gunawan
Universitas Riau, Pekan Baru
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences

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PID Controller System Analysis on Automatic Voltage Regulator (AVR) for Regulating Excitation Voltage of a 3-Phase Synchronous Generator Andi Krismanto M. David Panggabean; Haris Gunawan; Muhammad Erpandi Dalimunthe
Jurnal Multidisiplin Sahombu Vol. 5 No. 04 (2025): Jurnal Multidisiplin Sahombu, May - Juny (2025)
Publisher : Sean Institute

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Abstract

In power generation, voltage stability is a very important thing to consider because it can affect the electrical system. Changes in the output voltage of a generator are influenced by various factors including dynamic load and magnetic amplifier voltage (excitation voltage). In this final project, a 3-phase synchronous generator excitation voltage control system is created to maintain the stability of the generator voltage according to its rating of 380 volts. By implementing a PID controller, the size of the excitation voltage can be adjusted by changing the duty cycle of the PWM for switching the IGBT in the DC-DC converter power circuit of the buck-boost converter type. With the PID controller parameters Kp = 3, Ki-0.001, Kd = 0.001 and the excitation voltage that can be provided by the power circuit up to 130 volts dc, the system can be stable when there is a change in load. The recovery time to reach steady state is 1.3 seconds when loaded and 1.1 seconds when the load is removed.
The Effect of Coil Winding Replacement on the Performance of a 200 Kva Transformer (Case Study at PT. Razza Prima Trafo) Tengku Mughayat Syah Falah; Haris Gunawan; Parlin Siagian
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The electric power system is a primary need, both for daily life and for industrial life. The provision of stable and continuous electric power is an absolute requirement that must be met in meeting the need for electric power. The distribution system is the distribution of electrical energy from the substation to consumers. There are 2 (two) distribution systems, namely primary distribution and secondary distribution. Primary distribution, the distribution starts from the substation (secondary side of the power transformer) to the distribution substation (primary side of the distribution transformer) or from the substation directly to the 20kV medium voltage consumer. Power transformers are equipped with a grounding transformer that functions to obtain a neutral point from the power transformer. Before replacing the coil winding, measurements were taken using a TTR transformer turn ratio test (megger) measuring instrument. It can be concluded that the location of the damage is in the coil winding section. The results of the voltage measurements on the Primary Winding between phases R-S = 410 V, ST phase = 407 V and TR phase = 375V. and the Secondary voltage between phase and Neutral is RN = 221V, SN = 237V and TN = 222V. and the current in the Secondary winding between phases is R = 7.64A, S phase = 7.64A and T phase = 8.08A.
Pengaruh kWh Meter Bermasalah Terhadap Efektivitas kWh Jual Dewi Victorya Nuralda; Haris Gunawan; Muhammad Erpandi Dalimunthe
Elkom: Jurnal Elektronika dan Komputer Vol. 18 No. 1 (2025): Juli : Jurnal Elektronika dan Komputer
Publisher : STEKOM PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/ms805k51

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh kWh meter yang bermasalah terhadap efektivitas kWh Jual. Penggambilan data pemakaian kWh meter bermasalah pelanggan di PT. PLN (Persero) ULP Muara Enim. Metode yang digunakan ACMT (Aplikasi Catat Meter Terpusat) dan anlisa RCPS (Root Cause Problem Solving). Hasil penelitian ini Terdapat peningkatan nilai kWh setelah dilakukan penggantian pada kWh meter bermasalah, yang sebelumnya rata-rata pemakaian hanya 3.282 kWh setelah di lakukan penggantian rata-rata pemakaian meningkat menjadi 4.011 kWh   maka terdapat selisih rata-rata pemakaian sebesar 729 kWh. Penggantian kWh meter macet dan buram meningkatkan efektifitas kWh   jual sebesar 24,97 %. Terdapat selisih biaya yang merupakan kerugian yang selama ini ditanggung oleh PT. PLN sebesar Rp.824.560,-/bulan. Dengan dilakukannya penggantian kWh meter bermasalah ini diharapkan akan meminimalisir kesalahan yang dapat menimbulkan kerugian pada PT. PLN (Persero).
Analysis of the Performance Evaluation Study of Generator Excitation Unit in Atik Bakery Factory Kholaful Ahmad Harahap; Parlin Siagian; Haris Gunawan
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

Atik Bakery uses a power generation system to meet its operational energy needs, one of which comes from a generator unit that plays an important role in maintaining a stable power supply. One of the key components in generator operation is the excitation system that functions to regulate the generator output voltage. This study aims to evaluate the performance of the generator unit excitation system at Atik Bakery, by analyzing efficiency, voltage stability, and response to changes in load. The methods used include measuring the generator output voltage at various load conditions, as well as monitoring the parameters of the excitation system using measuring devices and data analysis. The results of the study indicate that the generator unit excitation system can maintain a stable output voltage under normal load conditions, but there is a decrease in performance at higher loads, which can affect the quality of power supply to the factory. This evaluation provides a basis for efforts to improve and enhance the performance of the excitation system to improve operational efficiency and stability at Atik Bakery.
Analisis Pengujian Pemutus Tenaga (PMT) 150 KV Bay Penghantar Tanjung Pura di Gardu Induk Pangkalan Brandan Tanzil Al Malik; Zuraidah Tharo; Haris Gunawan
Jurnal Nasional Teknologi Komputer Vol 5 No 3 (2025): Juli 2025
Publisher : CV. Hawari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jnastek.v5i3.283

Abstract

Biannual preventive-maintenance results (2022 & 2024) for the 150 kV Tanjung Pura line bay circuit breaker at Pangkalan Brandan Substation confirm reliable performance. Offline tests with Kyoritsu 3125 (5 kV) and ISA CBA-2000/Megger evaluated insulation resistance, contact resistance, operating time and contact synchronization against SPLN 52-1:1984, KEPDIR 0520-2.K/DIR/2014 and OEM limits (≤120 % FAT, ≤120 ms for 150 kV). Insulation far exceeded 1 MΩ/kV: 315–428 GΩ (62 600–85 600 MΩ/kV) in 2022 and 181–190 GΩ (36 200–38 000 MΩ/kV) in 2024; the drop is within safe bounds and linked to instrument variance and insulator surface condition. Contact resistance stayed low at 36.0–38.7 µΩ (<40 µΩ), although resistive loss rose from 0.13–0.139 W to 0.435–0.468 W due to higher load current. Opening time was 37.3–38.9 ms and closing time 68.2–72.6 ms, both compliant. Contact synchronization measured 0.3–0.8 ms open and 3–3.4 ms close, well below the 10 ms limit. The breaker is operationally healthy. Recommendations: periodic instrument calibration, pre-test insulator cleaning, strict adherence to SOPs and safety standards, and improved crew coordination for future consistency and safety.
Improving 20 kVA Generator Power Performance by Rewinding the Stor Conductor Windings Rianto Wijaksana Silalahi; Parlin Siagian; Haris Gunawan
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The decline in power performance in generators can be caused by various factors, one of which is the degradation of the stator conductor windings due to age, excessive temperature, or unstable operational conditions. This study aims to analyze and improve the power performance of a 20 kVA generator through the rewinding process of the stator windings with new conductors that meet technical standards. In this study, the methods used include initial analysis of the condition of the old windings, planning the winding redesign, the rewinding process, and testing the results through measuring voltage, current, efficiency, and power factor. The test results show a significant improvement in generator performance parameters after the rewinding process. The output voltage becomes more stable, power losses decrease, and efficiency increases from 0% to 80%. In addition, the power factor has improved from 0 to 0.92. This improvement proves that the rewinding process with the right material and technical specifications can restore and even significantly improve generator performance. This study makes a real contribution to the maintenance and reconditioning of electrical equipment, especially in small-to-medium scale power generation systems.
Analysisreliability Of Aircraft Electrical And Pneumatic Monitoring On Boeing 737 Aircraft Faisal Arrasyid Pulungan; Siti Anisah; Haris Gunawan
Jurnal Scientia Vol. 13 No. 04 (2024): Education and Sosial science, September-December 2024
Publisher : Sean Institute

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Abstract

This study analyzes the reliability of the electrical and pneumatic monitoring system on the Boeing 737 aircraft, which is a critical component in ensuring the safety and operational efficiency of the aircraft. The electrical system is responsible for supporting various vital functions of the aircraft, such as navigation, communication, and flight control, while the pneumatic system regulates airflow for various subsystems, including the anti-icing system, cabin control, and hydraulic pressure. The purpose of this study is to evaluate the performance of the monitoring system in detecting disturbances or failures in electrical and pneumatic components. The approach used involves direct monitoring, historical data collection, and predictive analysis using statistical methods to assess the level of system reliability. The results of the study indicate that the Boeing 737 monitoring system has high reliability in detecting problems before they become critical, but there are several aspects that need improvement, especially in terms of early detection of failures in the pneumatic system. Improving the reliability of the monitoring system can be done through the integration of more sophisticated sensor technology and artificial intelligence (AI)-based predictive algorithms. Thus, these improvements can improve the operational safety and efficiency of the aircraft.
PELATIHAN PERAWATAN PROGRAMABLE LOGIC CONTROLLER (PLC) SEBAGAI ALAT PENGENDALI ELEKTRONIKA UNTUK PARA TEKNISI DI PT. PACIFIC MEDAN INDUSTRI Haris Gunawan
PEDAMAS (PENGABDIAN KEPADA MASYARAKAT) Vol. 2 No. 03 (2024): MEI 2024
Publisher : MEDIA INOVASI PENDIDIKAN DAN PUBLIKASI

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Abstract

Kegiatan pengabdian masyarakat ini berfokus pada “ Pelatihan perawatan PLC sebagai alat kontrol elektronika bagi para teknisi di PT. Pacific Medan Industri “ yang sudah dilaksanakan dengan tujuan meminimalisir kerusakan PLC dan melakukan preventive maintenance pada PLC sebelum PLC mengalami kerusakan. Selain itu hal ini bertujuan untuk peningkatan pengetahuan para teknisi dan memahami tata cara untuk melakukan perawatan pada PLC, dan untuk mencegah plc dari kerusakan dini. Sesi teori yang dilakukan adalah dengan memahami konsep dasar PLC dan konsep dasar eletronika , sehingga para teknisi dapat mengetahui resiko yang ditimbulkan pada plc apabila PLC kotor terkena debu dan rusak karena terkena benda cair.para teknisi mendapatkan pencerahan tentang wawasan implementasi dan pemeliharan serta perwatan PLC. Sesi praktis memungkinkan para teknisi untuk menerapkan pengetahuan teoritis dalam lingkungan kerja yang diterapkan, termasuk merancang, menginstal, dan mengkonfigurasi sistem perawatan PLC. Hasil pelatihan sangat berdampak baik, termasuk peningkatan pengetahuan teknis, penerapan langsung keterampilan di tempat kerja, dan peningkatan kecakapan dalam perawatatan dan pemeliharaan PLC. Para teknisi akan mampu meningkatkan dalam mengidentifikasi dan menangani masalah PLC yang membutuhkan perawatan dengan cepat, selain itu kontribusi pada efisiensi operasional dan mengurangi waktu berhenti ketiak PLC mengalami kerusakan. Efek positif menjadikan teknisi menjadi tenaga professional yang berharga di dunia industry yang semakin maju
Analysis Of Polarity Conversion Of Npn To Pnp Proximity Sensor Using Switching Relay Haris Gunawan; Rahmaniar; Ahmad Dani
International Journal of Economic, Technology and Social Sciences (Injects) Vol. 6 No. 1 (2025): Mei 2025
Publisher : CERED Indonesia Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/injects.v6i1.1454

Abstract

Proximity sensors are essential components in industrial automation systems, particularly for non-contact object detection. NPN and PNP sensors differ in output polarity, which often creates compatibility issues when integrating them with control devices that require a specific type of input signal. A common problem occurs when an NPN proximity sensor must interface with a controller that only accepts PNP logic inputs, requiring a safe, stable, and practical method of polarity conversion. This study aims to analyze the conversion of output polarity from an NPN proximity sensor to a PNP configuration using a switching relay as the signal conversion component. The methodology includes designing the conversion circuit, conducting simulations, and performing direct testing of the relay’s switching response when receiving an output signal from the NPN sensor. The evaluated parameters include switching stability, response time, relay contact reliability, and compatibility with PLC or microcontroller inputs. The results indicate that the switching relay effectively performs polarity conversion, achieving a detection accuracy of more than 95%. The relay is capable of delivering a stable PNP logic output, although a slight delay occurs due to its mechanical switching operation. Additionally, the conversion circuit offers electrical isolation, making it safe and suitable for various industrial control systems. The study concludes that a switching relay provides a simple, economical, and compatible solution for converting NPN proximity sensor signals into PNP logic. Despite limitations in switching speed, this method remains highly applicable for low- to medium-speed automation processes. Further development is recommended using solid-state relays (SSR) or transistor-based drivers to improve switching speed and enhance system durability.
Pengaruh Sistem Pencahayaan Berbasis Smart terhadap Penghematan Energi Nafizal Umri; Haris Gunawan; M Erpandi Dalimunthe
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7400

Abstract

The increasing demand for electrical energy, particularly in offices and commercial buildings, has made energy efficiency a critical aspect of sustainable development. Among various building components, lighting systems are recognized as one of the major consumers of energy. This study investigates the potential for energy savings through the adoption of a smart lighting system incorporating IoT-based sensors, motion detectors, and dimming controls. Employing a quantitative descriptive approach, the research was conducted at the workspace of Indie Light, comparing energy consumption before and after the implementation of the system. Data were collected using direct observation, light and power meters, and real-time monitoring devices to ensure accurate measurement. The results demonstrate that smart lighting systems can substantially reduce energy use without compromising lighting quality or comfort. By integrating intelligent sensors and adaptive control algorithms, the system not only optimizes energy efficiency but also aligns with national policies on energy conservation, supporting broader environmental sustainability efforts. These findings suggest that smart lighting solutions can play a significant role in promoting energy-efficient practices in commercial spaces while contributing to sustainable development goals.
Co-Authors Abdi Nazirwan Ahmad Dani Alasi, Tomy Satria Andi Krismanto M. David Panggabean Aos Yuli Firdaus Bayu Pradana Beno Fariza Syahri Cakra Birawa Dewi Victorya Nuralda Dian Afriyanti Dian Eka Indriani Dicky Lesmana Dien Septiani Dwi Adhari Nugraha Edo Inaldi Damanik Emmy Uthanya Antang Ernawati Sinaga Erwanda Trio Bintan Sabri Fachruddin Mangunjaya, Fachruddin Faisal Arrasyid Pulungan Fauziah Ilmi Gugah Praharawati Hafist Aufar Hamdani Ahmad Rangkuti Hendra Maujana Saragih Herawati Sudoyo Jembar Khairijon &#039; Kholaful Ahmad Harahap Lilis Supriati M Erpandi Dalimunthe Mhd Hasbi Ramadhan Muhammad Erpandi Dalimunthe Nafizal Umri Nery Sofiyanti Nico Herlambang Parlin Siagian Rahmaniar Ranses Wahyudi Sijabat Raudhah Rianto Wijaksana Silalahi Ricky Adesa Pratama Salampak Dohong Sigit Pratama Siti Anisah Suwigya Utama Tanzil Al Malik Taufik Mei Mulyana Tengku Mughayat Syah Falah Yeprin Ari Pradana Yoel Wesly Dirney Lumbantoruan Yolanda Yussy Zulham, Muhammad Zuraidah Taro Zuraidah Tharo