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JTEIN: Jurnal Teknik Elektro Indonesia
Published by Universitas Negeri Padang
ISSN : -     EISSN : 27230589     DOI : https://doi.org/10.24036/jtein.v1i1.8
Core Subject : Science, Education, Engineering,
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering
JTEIN: Jurnal Teknik Elektro Indonesia dikelola oleh Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang, dalam membantu para akademisi, peneliti dan praktisi untuk menyebarkan hasil penelitiannya. Fokus pada bidang yang terkait dengan Teknik Elektro.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 329 Documents
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Implementation of Outseal PLC for Monitoring kWh Meters in the Commercial Sector Using Android-Based HMI Ardiansyah, Ardiansyah; Sukardi, Sukardi; Hambali, Hambali; Mukhaiyar, Riki
Jurnal Teknik Elektro Indonesia Vol 5 No 2 (2024): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v5i2.716

Abstract

The increasing demand for electricity in the commercial sector necessitated the development of an efficient monitoring system to manage energy consumption. This study aimed to design and implement a monitoring sistem for kWh meters using an Outseal PLC integrated with an Android-based HMI. The system utilized the Outseal PLC as the primary controller, interfacing wirelessly with a Modbus HMI through a DT-06 Wi-Fi Module. A PZEM-004T sensor was used to measure voltage, current, power, and energy consumption. The PLC communicated with the sensor via Modbus protocol using a Max485 module. The data collected was displayed on the HMI, allowing real-time monitoring of power usage. Experimental methods involving the design and testing of both hardware and software components were employed. Results demonstrated that the system accurately measured electrical parameters with minimal error. The voltage and current readings showed average errors of 0,08% and 0,23% respectively for an 85 Ω load, 0,92% and 2,81% for a 14 Ω load. Power measurements had an average error of 0,15% for an 85 Ω load and 1,68% for a 14 Ω load. The Wi-Fi connection range was tested and found to be effective up to 14 meters without obstacles. This study concluded that the Outseal PLC-based monitoring system is a reliable and cost effective solution for managing energy consumption in the commercial sector.
Effectiveness Of Type C Passive Filters In Reducing Harmonic Currents Lubis, Azmi Rizki; Sutopo, Adi; Affandi, Marwan; Harahap, Muchsin
Jurnal Teknik Elektro Indonesia Vol 5 No 2 (2024): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v5i2.728

Abstract

This study aims to see how effective the type C passive filter is in reducing harmonic currents generated by the electrodynamometer induction motor trainer. The method used in this study is to model a C-type passive filter and simulate it with computer software. The type C passive filter modeling is designed to reduce harmonics in the thirty-fifth order. From the observation results, it was found that the thirty-fifth order harmonic current was 1.5% while the IEEE 519-2014 standard limits the thirty-fifth order harmonic current to 1.0%, which has exceeded the permitted standard. After the simulation, the type C passive filter successfully reduced the existing harmonics so that the harmonic content was 0.95%. From the results of this simulation, it can be concluded that the type C passive filter successfully reduced the harmonic content in the thirty-fifth order to 36.29%. This harmonic reduction has also been below the maximum value permitted by the IEEE 519 – 2014 standard at the thirty-fifth order so that the passive filter is effective in reducing the thirty-fifth harmonic produced by the electrodynamometer induction motor trainer.
Microcontroller-Based Smart Locker Prototype Tinambunan, Delila Agustin; Sukardi, Sukardi
Jurnal Teknik Elektro Indonesia Vol 5 No 2 (2024): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v5i2.730

Abstract

This research aims to design and build a prototype smart locker based on ESP32 microcontroller as a security solution that is more efficient and reliable than conventional systems. This system utilizes remote technology by using ESP32 connected via WiFi, to remotely control and monitor the locker. The smart locker is equipped with a vibration sensor that is able to detect forced opening attempts and generate an alarm as an additional form of security. Tests were conducted to ensure the reliability of the system under different operational conditions, including a range test between the transmitter and receiver up to a distance of 60 meters. The test results show that the smart locker system functions well in accordance with the design, without any loss of connection during the control process. With this technology, it is expected to be applied in various places that require high security smart locker systems, such as libraries and other public facilities. This research provides suggestions for further development, including improved microcontroller specifications and integration with a web-based monitoring system for more efficient administration.
Design of an Automatic Cooling System for Microcontroller-Based Solar Panels Azizah, Nurul; Yanto, Doni Tri Putra; Pulungan, Ali Basrah; Dewi, Citra
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.687

Abstract

The increasing need for electrical energy and its central role requires electrical energy suppliers to find new plants in order to meet consumer needs and avoid an electrical energy crisis. Utilization of solar energy through solar panels is an alternative to meet these needs. However, in the process of converting solar energy into electrical energy, the temperature of solar panels increases, causing the performance and efficiency of solar panels to decrease. Solar panels can produce the best power at temperatures of 25oC-35oC. When there is an increase in temperature by 1 ° C, the power generated decreases by 0.4%. An automatic cooling system is a solution that can be used to prevent the solar panel temperature from exceeding its optimal temperature limit. The solar panel cooling system made works on 10Wp solar panels with control from Arduino Uno, with inputs in the form of ACS712 sensors, DC voltage sensors, DHT11 sensors and RTC DS3231. The outputs are relays, LCD and micro-SD module. The methodology used in the research involves the design, implementation, and testing stages of the system prototype. After testing the prototype in the form of a comparison between solar panels with a cooling system and without a cooling system. It was found that when using a cooler, the average power generated was 9.1W. While solar panels without cooling can only produce an average power of 2.5W. This proves that the cooling system made can increase the output power.
Design of a Monitoring Device and System for Measuring Heart Rate, Oxygen Saturation and Body Temperature Based on the Internet of Things (IoT) Hutahaean, Yoslina; Hapsari, Dini Shafira; Rusdiyanto, Dian
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.704

Abstract

Medical technology have developed rapidly. This is conducted to support health services and prevent the worst conditions that can be experienced by someone who has health problems. This research proposes medical devices based on internet of things (IoT). The proposed device is an integrated system with sensors to detect body temperature, heart rate and oxygen saturation. The sensor reading results can be seen via the LCD and monitored via the website. Sensors and IoT systems use Arduino, where the sensors used are the MAX30100 sensor and the MLX90614 sensor. Meanwhile, the Wemos D1 mini is used to send sensor reading data to the website. To validate the performance of the tool, a comparison was carried out using an oximeter and a thermometer. The test results showed that the difference in oxygen saturation and body temperature readings was no more than 1%, while the difference in heart rate readings had an average difference of 1.13%. Monitoring on websites in real time is able to read sensor detections with a time lag from the tool to the website of around 5 seconds. The research results show that the design of the tool is in accordance with the desired specifications and can be applied in the health sector.
Home Security System by Three Methods Using Arduino Nano Based PV Energy Source Mungkin, Moranain; Sijabat, Tonggo; Bahri, Zulkifli; Satria, Habib; Siregar, Muhammad Fadlan; Dayana, Indri
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.710

Abstract

The existence of technology today aims to help make human work easier, including in the aspect of residential security systems. The increase in crime, especially theft in residential homes, is increasingly worrying. Therefore, the application of Arduino Nano control system technology with other supporting systems is the right solution to improve the safety of residents and minimize theft. This research aims to design a device called Home Security System by Three Methods that uses PV energy sources and the Arduino Nano control system. This tool features three security methods: SMS gateway, phone call, and alarm sound in two locations. Tests were carried out by simulating the opening and closing of doors/windows, then paying attention to the system response on the smartphone and the two alarms. The test results show that when a door/window is opened, the system sends an alert SMS to the user's smartphone within ± 9 seconds. The alarm sounds inside the house and the security post. If the user does not respond, the system will make a phone call within ± 55 seconds after the door/window is opened. The system works based on the movement or gap in the door/window using a magnetic switch sensor of ± 2.5 cm.
Reliability Analysis of OCR Relay with ETAP 19.0.1 Simulation to Anticipate Disturbances in Bemo Feeders at the Cawang Lama Substation Aditya, Lukman; Eriawan, Eriawan; Albahar, Abdul Kodir
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.740

Abstract

The protection system is an important part of the electricity distribution system. Setting the protection relai is a significant procedure that must be ensured properly, so that the relai can work optimally when it experiences interference. If the disturbance is not cut off by the OCR Relay on the feeder, it could result in the incoming tripping, effecting in losses to PLN. Analysis is carried out to determine the reliability of the over current relai (OCR) so that the electric power system remains stable. The relay used by the Cawang Lama Substation is Standard Inverse, where the greater the fault current, the faster the relay working time and vice versa. In this research, simulations were carried out using ETAP 19.0.1, testing and calculations. ETAP simulation shows that protection coordination is appropriate. The relai on the feeder trips first with a time setting of 0.15 s for over current (OC) and 0.2 s for moment over current (MOC), then at incoming 0.24 s for OC and 0.5 s for MOC. The results obtained from the analysis of relay working time on the Bemo feeder up to the power breaker trip (PMT), namely 0.256 s using calculations, 0.275 s using Current Injector, and 0.260 s using ETAP simulation. From a comparison of the working time of the relay, it’s obtained between 0.04 s - 0.019 s, and this value is still considered proper
Performance Comparison of Resistance Temperature Detector and Liquid Filled Thermometer on Turbine Guide Bearing at Siguragura HPP. Prayitno, Fajar Nur; Rahmaniar, Rahmaniar; Anisah, Siti
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.748

Abstract

The Turbine Guide Bearing (TGB) is a critical component at the Siguragura Hydroelectric Power Plant (HPP), responsible for ensuring the turbine shaft rotates on its axis, allowing the turbine to operate efficiently without excessive heat buildup that could lead to failure. This requires continuous temperature monitoring of the Turbine Guide Bearing. The temperature sensors used for this monitoring are the Resistance Temperature Detector (RTD) and the Liquid Filled Thermometer. These two sensors operate based on different mechanisms, making it essential to analyze their performance to ensure compatibility and maintain the accuracy and reliability of temperature measurements. Based on calibration and field testing results, the RTD sensor demonstrated more accurate and stable temperature readings, with a minimal deviation from the standard and linear, non-fluctuating results. On the other hand, the Liquid Filled Thermometer was more responsive, with a faster response time to reach the reference temperature. Therefore, the most suitable sensor for measuring the temperature of the Turbine Guide Bearing at Siguragura HPP is the RTD as the primary sensor, while the Liquid Filled Thermometer can serve as a redundant sensor.
The Effect of Dataset Count on Facial Recognition Accuracy Using Haar Cascade Classifier Kartika, Kartika; Misriana, Misriana; Jannah, Misbahul; Riyaldi, M. Aldi
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.705

Abstract

This study investigates the impact of varying facial image dataset sizes on the accuracy of facial recognition using the Haar Cascade Classifier method. The dataset sizes examined were 150, 100, and 50 facial images, all captured under consistent conditions using a Raspberry Pi Camera v1.3. The dataset collection, image training, and facial recognition processes were conducted on a Raspberry Pi 4 Single Board Computer (SBC). The study controlled for lighting conditions to ensure they did not affect the results. The facial images were trained using the Local Binary Pattern Histogram (LBPH) recognizer and the Haar Cascade Classifier detector. Recognition tests were conducted at distances of 25cm, 50cm, 75cm, 100cm, 125cm, and 150cm from the camera. The study found that the highest recognition accuracy of 98% was achieved with a 150-image dataset at a distance of 75cm. In contrast, the accuracy dropped to 0% at 125cm and 150cm distances across all dataset sizes. The findings suggest that increasing the number of facial images in the dataset improves the accuracy of facial recognition. Further research is recommended to explore the effectiveness of the Haar Cascade Classifier method in facial recognition systems.
Smart Watering System and Monitoring Using Smartphone Based IoT System on Chili Plants Tambunan, Josua Cristian; Jefiza, Adlian
Jurnal Teknik Elektro Indonesia Vol 6 No 1 (2025): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v6i1.733

Abstract

Optimal watering is essential for the growth of chili plants. This study proposes an IoT-based smart watering and monitoring system that uses fuzzy logic to dynamically determine the duration of watering. This system utilizes a DHT22 sensor to measure air temperature and a YL-69 sensor to measure soil moisture. Fuzzy logic is used to map soil temperature and moisture values into appropriate watering durations, considering predetermined rules based on domain knowledge. The automatic and scheduled watering system produced from this study can function well in controlling the duration of watering with an average duration of 4.52 seconds and is able to maintain soil moisture in chili plants with an average of 73.2%, the automatic watering system also shows more effective results in maintaining soil moisture when compared to manual watering. Meanwhile, the IoT monitoring system or monitoring of the Blynk application using a hotspot network in the chili plant environment can function well with an access distance of 20m. This study provides a unique contribution by combining fuzzy logic to dynamically determine the duration of watering, so that it can adapt to changing environmental conditions. This system opens up opportunities for the development of more complex systems, such as integration with pest and disease monitoring systems.

Page 31 of 33 | Total Record : 329

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