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Leonardus Sandy Ade Putra
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leonardusandy@ee.untan.ac.id
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telectrical@untan.ac.id
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Jl. Prof. Dr. Hadari Nawawi, Pontianak 78124, Indonesia
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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 5 Documents
 1 
Search results for , issue "Vol 2, No 3: February 2025" : 5 Documents clear
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.
DEVELOPMENT OF AN ANDROID-BASED TRAFFIC LIGHT SYSTEM APPLICATION HENDRIYANI, TRI HENDRIYANI
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.v2i3.90788

Abstract

Traffic light systems play a crucial role in regulating vehicle flow at road intersections. However, most existing systems still rely on fixed-time settings, with adjustments for normal conditions and flashing yellow lights controlled conventionally through hardware based on traffic conditions. This study aims to design and develop a traffic light system that can be operated and accessed via an Android application using Wi-Fi connectivity. The system allows for flexible adjustments of traffic light conditions by operators, facilitating traffic management and enabling use in specific situations such as for emergency vehicles and VVIP vehicles. The system supports various traffic light modes, such as all red lights (All Red), flashing yellow lights (Flashing Kuning), a manual mode for controlling individual lights, and a normal mode with an automatic timing cycle similar to conventional systems. The system is designed using an ESP32 microcontroller as the main controller and an Android application as the user interface. The implementation involves communication between hardware and software over a Wi-Fi network. Testing results indicate that the system functions effectively, with quick responses to commands sent through the application, and can operate at a distance of 10"“50 meters. This development is expected to provide a more flexible solution for traffic management, both for simulation purposes and real-world implementation.
WHEELED MOBILE ROBOT WITH GPS-BASED WAYPOINT NAVIGATION SYSTEM AND IOT APPLICATION Maharani, Suci; Panjaitan, Seno Darmawan; Marindani, Elang Derdian
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.v2i3.89481

Abstract

Technological advances in robotics have had a significant impact on various aspects of human life. One of them is a mobile robot that is able to move from one place to another using wheels. This study designs a mecanum wheeled robot that can move with a waypoint navigation system using a GPS coordinate system and IoT applications. Based on the test results, it is known that the Ublox Neo-6M GPS sensor can determine the location coordinates quite well in an open area without obstacles with an active time of 2-5 minutes. The HMC5883L compass sensor has an angle reading with the smallest error of 2 ° in the north direction. The results of this study, the robot can go to the targeted position without obstacles with varying angle and distance direction accuracy based on the readings of the compass sensor and infrared sensor as a distance measuring encoder at each waypoint. Testing the waypoint robot in conditions without obstacles, obtained a better level of angle and distance accuracy of the robot at waypoint 3 of 98.87% and 95.69%. When there are obstacles, the angle accuracy of waypoint 3 becomes 97.43%, and the distance accuracy is better at waypoint 1 to 94.2%. IoT application with Kodular can be used to operate robots via Bluetooth serial communication which takes an average time of about 0.507 seconds at a distance of 10 meters. At a distance of more than 11 meters, Bluetooth communication cannot connect to the HC-05 Bluetooth module.

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