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Leonardus Sandy Ade Putra
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INDONESIA
Telecommunications, Computers, and Electricals Engineering Journal
Published by Universitas Tanjungpura
ISSN : -     EISSN : 30260744     DOI : https://dx.doi.org/10.26418/telectrical.v1i2
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Signal Processing; Communication Networks; Artificial Intelligence, Computer Technology; Power Systems; Image Processing
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 68 Documents
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STUDY OF THE EFFECTS OF INCLINATION ANGLE OF ARCHIMEDES TURBINE CHARACTERS - GENERATOR STUDY Dede, Markurius Hariyadi; Danial, Danial; Taufiqurrahman, Muhammad
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 2: October 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i2.76137

Abstract

The current demand for electrical energy stands as a crucial aspect in both household and industrial contexts. Indonesia, blessed with abundant water resources, holds significant potential in the development of renewable energy. Specifically, West Kalimantan boasts plentiful rivers that serve as potential sources for electricity generation. The Archimedes Turbine has emerged as a primary focus for generating electricity from water flow. This research aims to analyze the evolution of the Archimedes turbine concerning its characteristics with angle variations and their influence on the generator. Through a literature review, this study explores the development of Archimedes turbines over time.In this analysis, the variation in the turbine's angle of inclination concerning the generator takes center stage. The research findings indicate that the performance characteristics of the Archimedes turbine, such as efficiency, generated power, and torque, are evaluated under various angle conditions. This research is expected to provide profound insights into the contribution of Archimedes turbine technology in the future and expand the understanding of its potential application in different water contexts.The research findings reveal that the optimal turbine performance concerning water flow occurs at a 30Ëš angle with a flow rate of 100% (Q3 = 0.006 m^3/s). Under unloaded conditions, the turbine produces a voltage of 19.13 V, while under loaded conditions, the resulting voltage is 17.21 V.
TRANSFORMER RELIABILITY ANALYSIS USING THE WEIBULL DISTRIBUTION METHOD (CASE STUDY OF THE POWER TRANSFORMER AT THE KOTA BARU PONTIANAK SUBSTATION) Chaniago, Muhammad Ilham; Purwoharjono, Purwoharjono; Gianto, Rudy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 2: October 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i2.83889

Abstract

Reliability is the probability that a component or system will be able to operate according to the desired function for a certain period of time when used under specified operating conditions. To determine reliability in operational terms, a more specific definition is needed, namely a description of the failure that is not confusing and can be observed, identification of the time unit, and the system being observed must be in normal environmental and operating conditions. Transformer reliability is greatly influenced by two things, namely disruption and maintenance of the transformer. Scheduled and regular maintenance can increase transformer reliability, however incomplete and poorly scheduled maintenance will result in the transformer not operating or serving more often. The Weibull distribution is a distribution that has an important role, especially in matters of reliability and maintainability analysis. The Weibull distribution is often used as an approach to determine the characteristics of the damage function because changes in value will result in the Weibull distribution having certain properties or being equivalent to a certain distribution. This distribution is a versatile distribution that can take on the characteristics of other types of distribution, based on the values of the form parameters. The Weibull distribution has several reliability indices such as failure rate and MTTF (Mean Time To Failure). Based on the calculation results, power transformer 1 has an average failure rate of 0.0015 times/day, and an MTTF of 714.0685 days or 1.9564 years. Meanwhile, power transformer 3 has a failure rate of 0.0009 times/day, and an MTTF of 1587.6033 days or 4.3496 years. It can be said that power transformer 3 has much better failure rate and MTTF values than power transformer 1. The results shows that power transformer 3 shows better overall performance with a lower failure rate and higher MTTF.
IOT INTEGRATION IN WEB-BASED LECTURER ATTENDANCE SYSTEM TO IMPROVE ACADEMIC COMMUNICATION Saputra, Surya Darma Hadi; Putra, Leonardus Sandy Ade; Yacoub, Redi Ratiandi
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 2: October 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i2.84511

Abstract

Effective relationships between students and lecturers are essential in supporting the Tri Dharma of Higher Education, but difficulties in communication and meetings can hinder this process. Internet of Things (IoT) technology offers a solution by enabling real-time management of lecturer attendance information. This research aims to: (1) design a website-based lecturer attendance information system, (2) test the system design on the device and information system, and (3) analyze the performance of the integrated system. The methodology used is the RD (Research and Development) method, which involves needs analysis, design, development, and system testing. The test results show that the designed system is able to provide information related to lecturer attendance well. Of the 10 samples, 7 were successfully enrolled in the database, and 6 successfully performed fingerprint matching. Data management is done well, although there are challenges such as the need for a stable network. The design of the device involved complex procedures, including WiFi configuration and fingerprint matching using a MySQL database, showing the potential for further development. This web-based IoT system can be accessed through various gadgets such as smartphones, laptops, or computers, making it easier for users to access information. Overall, this system provides a practical and efficient solution to improve communication and meetings between lecturers and students.
PLANNING STUDY OF INTERNAL LIGHTNING OVERVOLTAGE PROTECTION ON 1,5 MW SOLAR POWER PLANT AT TANJUNGPURA UNIVERSITY Simbolon, Gerry
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 3: February 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i3.76695

Abstract

Solar power generation is an electric power generation system that converts sunlight energy into electrical energy. Currently, Tanjungpura University is building a 1.5 MW solar power plant with a land area of 11,075 m^2. This research aims to design an internal lightning protection system that is capable of protecting of the solar power plant Tanjungpura University 1.5 MW so that the solar power generation system can be protected from overcurrent due to indirect lightning strikes. In this internal lightning protection system design research, a combination box and AC switchgear panel will be designed to protect the solar power plant system. In the combination box a DC protection system will be installed in the form of a fuse, Miniature Circuir Breaker (MCB), and Surge Protection Device (SPD). Meanwhile, in AC switchgear panels, the AC protection systems that will be used are Molded Chase Circuit Breaker (MCCB), Surge Protection Device (SPD) and Air Circuit Breaker (ACB). From the results of these calculations, a design for an internal lightning protection system was created for the solar power plant 1.5 MW electricity at Tanjungpura University which was installed in a combiner box and AC switchgear panel.
Evaluation of Public Street Lighting (PJU) on Jalan Ratu Sepudak, Singkawang City Saputra, Andi; Junaidi, Junaidi; Gianto, Rudy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 3: February 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i3.85475

Abstract

Public Street Lighting (PJU) is a lighting installation that is public and usually installed on roads, bridges and certain places such as parks and other public places. Public Street Lighting (LPJU) is a lamp used for street lighting at night so that it makes it easier for pedestrians, Cyclists and motorists can see more clearly the road / terrain that will be passed at night, so as to improve traffic safety, comfort of road users and provide security from criminal activities. On Jalan Ratu Sepudak Kota Singkawang, 41 light points have been installed using single ornament, the lamps used are 150 Watt SON-T type, The distance between the poles is 30 - 50 meters. Based on the results of the evaluation carried out, the results of 100 Watt LED lamps with a pole height of 9 meters, the handlebar ornament angle is 19.940, the number of light points is 58 points, illumination is 6.23 lux, the power needed is 5.8 kWh / day, and the energy consumption needed is 69.6 kWh / day.
A Miniaturised Dual-Band Modified U-Shaped Monopole Antenna for 5G, Wi-Fi/WLAN/WiMAX and Ultra-Wideband Applications Ansah, John Nyamekye
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 3: February 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i3.89567

Abstract

This paper presents a miniaturised dual-band modified U-shaped monopole antenna for 5G, Wi-Fi/WLAN/WiMAX and ultra-wideband (UWB) applications.   The antenna is designed and optimised using computer simulation technology (CST) microwave studio (MWS) suite version 2019. It features a circular patch modified into a U-shape by introducing geometrical slots, which significantly contribute to achieving wide bandwidth. The patch is mounted on an FR-4 substrate with a 1.6 mm thickness and a 4.3 relative permittivity value. The antenna has an area of 50 × 50  and resonates at 2.45 GHz and 5.25 GHz, achieving return losses of -28.677 dB and -36.851 dB, with VSWR values of 1.0765 and 1.0292 at the respective operating frequencies. The corresponding gains are 2.282 dBi and 4.334 dBi, with directivity of 2.710 dBi and 5.206 dBi. It offers a huge impedance bandwidth of 7.564 GHz, effectively covering 2.0535-3.8333 GHz and 4.2158-10 GHz, which meet the operational requirements for 5G, Wi-Fi/WLAN/WiMAX and UWB applications. Additionally, the antenna measures 90.61% and 81.80% radiation efficiencies and 90.49% and 81.78% total efficiencies at the respective operating frequencies. The fractional bandwidths are 60.5% and 81.4% at 2.45 GHz and 5.25 GHz, respectively. Furthermore, the antenna exhibits an omnidirectional radiation pattern that demonstrates exceptional potential as a competitive solution for 5G, Wi-Fi/WLAN/WiMAX and UWB applications.
IMPLEMENTATION OF LoRa SIGNAL DISTRIBUTION IN TRAFFIC LIGHTS Ruslan, Ruslan
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.93982

Abstract

The development of wireless communication technology based on the Internet of Things (IoT) encourages the modernization of various urban infrastructures, including traffic light systems. This research discusses the implementation of Long Range (LoRa) technology as a wireless communication medium to control traffic lights in the four intersection area. LoRa was chosen because it has a wide transmission range, low power consumption, and ease of integration in smart city systems. The designed system consists of one ESP32 microcontroller-based transmitter and four receivers using NodeMCU ESP8266, which are connected through LoRa SX1278 module with frequency 433 MHz. Tests were conducted under Line of Sight (LOS) conditions with a distance variation of 25 meters to 125 meters. The performance parameters measured include Received Signal Strength Indicator (RSSI), Signal to Noise Ratio (SNR), and delay time. The test results show that as the distance increases, the RSSI and SNR values tend to decrease, but the system is still able to run three traffic light operation modes, namely normal, flash, and all-red operations, in real-time without significant interference up to a distance of 125 meters. This implementation proves that LoRa can be an effective and efficient solution for wireless communication-based traffic light systems, with the advantages of flexibility, low installation costs, and easy integration into modern traffic management systems.
Design of Active Analog Subwoofer Crossover Filter Linkwitz Riley 24 in Audio System Hizkia, Dave Adonia; Suryadi, Dedy; Marindani, Elang Derdian
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 2: October 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i2.97440

Abstract

The quality of an audio system is greatly influenced by the accuracy of frequency distribution, especially in the low-frequency range managed by the subwoofer. To achieve optimal separation, this study presents the design and implementation of a fourth-order active analog Linkwitz"“Riley crossover filter (LR24) for subwoofer applications. The LR24 topology was selected for its ability to provide smooth and symmetrical frequency transitions with a 24 dB/octave slope. The research covers filter and preamplifier design, component selection, and performance evaluation using pink noise. Measurements were carried out through spectrogram analysis, frequency spectrum observation, and oscilloscope testing. The resulting filter achieved a cutoff frequency of 126.8 Hz with an attenuation slope of 24 dB/octave at 249.4 Hz, effectively reducing high-frequency signals. Comparative analysis with fourth-order digital Butterworth and Bessel filters on the DBx 260 demonstrated that the proposed analog design delivers competitive performance. This work highlights that an analog LR24 filter built from basic components and general-purpose op-amps can serve as a reliable and cost-effective alternative to digital solutions in low-frequency audio processing, although its performance is still constrained by the limitations of standard op-amps compared to audio-grade devices.
DESIGN AND IMPLEMENTATION OF AN 11-ELEMENT YAGI ANTENNA AS AN INTERNET SIGNAL BOOSTER IN MENYABO VILLAGE Setiawan, Geri; Kusumawardhani, Eka; Suryadi, Dedy
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.92536

Abstract

The Yagi antenna is a type of directional antenna designed to enhance signal reception and transmission in a specific direction. In this study, the MMANA-GAL software was utilized to design and simulate the antenna with a high level of accuracy. The aim of this research is to design and implement an 11-element Yagi antenna capable of capturing signals from a Base Transceiver Station (BTS) to improve weak signal quality in Menyabo Village. Antenna testing was conducted using the MMANA-GAL application for simulation, along with SpeedTest and GNetTrack (GNet-WiFi) applications for measuring signal performance. Based on the results of the design, simulation, and testing phases, it can be concluded that the designed antenna meets the desired specifications. Simulation results indicate that the 11-element Yagi antenna has an impedance of 50 Ohms, a VSWR value of 1:1.00, and a gain of 12.8 dBi. Field testing results demonstrated improved signal performance. Prior to connecting the antenna, SpeedTest results showed a ping of 61 ms, download speed of 0.40 Mbps, and upload speed of 1.70 Mbps. After connecting the antenna at a height of 10 meters, the values improved to a ping of 39 ms, download speed of 1.06 Mbps, and upload speed of 1.46 Mbps. At 12 meters, the results further improved to a ping of 38 ms, download speed of 2.67 Mbps, and upload speed of 1.58 Mbps. Regarding RSSI measurements, before connection, the signal strength was -77 dBm. After connecting the antenna, the RSSI improved to -51 dBm at 10 meters and -41 dBm at 12 meters. Based on these findings, it can be concluded that the designed 11-element Yagi antenna successfully enhances signal quality and meets the targeted specifications.
PERFORMANCE ANALYSIS OF LORA COMMUNICATION ON AIR QUALITY MONITORING QUADCOPTER Darmawan, Alif
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 3, No 1: June 2025
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v3i1.93205

Abstract

In wireless communication, the quality and success of information exchange are crucial factors to consider. This study aims to analyze the performance of LoRa communication on a quadcopter designed to monitor air quality. The quality and success of information exchange on this air quality monitoring quadcopter are evaluated based on parameters such as RSSI, SNR, Packet Delivery Ratio, and Packet Loss. The research methodology involves field testing using a quadcopter equipped with a LoRa RFM95 module, ESP32 microcontroller, and air quality monitoring sensors, such as DHT22, MQ-7, MQ-131, and GP2Y1010AU0F. Data collected by the quadcopter were transmitted to a receiver station via LoRa communication. Analysis was conducted at various communication distances to understand their impact on system performance. The results indicate that the LoRa communication transmission on the air quality monitoring quadcopter successfully transmitted data from the transmitter to the receiver at distances ranging from 100 meters to 500 meters and all data collection variations showed a Packet Delivery Ratio of 100% and a Packet Loss of 0%.

Page 6 of 7 | Total Record : 68

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