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All Journal Jurnal Teknik Elektro Universitas Tanjungpura ELKHA : Jurnal Teknik Elektro TELKOMNIKA (Telecommunication Computing Electronics and Control) JUSTIAN - Jurnal Sistem Informasi Akuntansi Telecommunications, Computers, and Electricals Engineering Journal Journal of Electrical Engineering, Energy, and Information Technology
Managam Rajagukguk
Tanjungpura University
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Two-port network model of fixed-speed wind turbine generator for distribution system load flow analysis Rudy Gianto; Kho Hie Khwee; Hendro Priyatman; Managam Rajagukguk
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 3: June 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i3.11866

Abstract

Load flow analysis has always been used in determining the steady-state operation of an electric power or distribution system. For conventional power system without wind turbine generator, the method for load flow analysis has been well established. However, for modern system embedded with wind turbine generator, the investigation of analysis method is still an active research area. This paper proposed a new method to integrate fixed-speed wind turbine generator into distribution system load flow analysis. The proposed method is derived based on two-port network theory where the parameters of induction generator of the wind turbine generator are embedded in general constants of the two-port network. The proposed method has been tested and verified using a representative electric distribution system.
STUDY ON THE EFFECT OF WATER CONTENTS IN THE DISTRIBUTION TRANSFORMER OIL AGAINST IT'S BREAKDOWN VOLTAGE Daniel Julius Pangihutan Manurung; Rudi Kurnianto; Managam Rajagukguk
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 2, No 1: June 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v2i1.79073

Abstract

The degradation of electrical power quality due to high water content in transformer oil is a critical issue because water in transformer oil can cause insulation degradation, increase electrical conductivity, and accelerate the corrosion process of internal components. This results in a decrease in transformer performance and reliability, and increases the risk of electrical faults or failures that can have far-reaching impacts on the power distribution network. Water damage can also shorten the operational life of the transformer and increase maintenance and component replacement costs. Therefore, testing the breakdown voltage, moisture content, and flash point of distribution transformer oil is very important to determine the feasibility of transformer oil. This study aims to determine the effect of moisture content on breakdown voltage and flash point, as well as the effect of breakdown voltage on flash point. By using the test method of breakdown voltage, moisture content, and flash point is expected to determine the feasibility of transformer oil. The results obtained from the old transforamtor oil (14 years) have a breakdown voltage of 1.3 kV, the transformer oil has been used (2 years) of 24.25 kV, and for the new transformer oil of 34.4 kV. For old transformer oil moisture content of 140.19 ppm, used transformer oil moisture content of 34.03 ppm, new transformer oil moisture content of 26.04 ppm, old transformer oil flash point measurement results of 148° C, used transformer oil samples of 150° C, and new transformer oil samples of 160.5° C. In conclusion, the old and new transformer oil is still suitable for use.
THE TEST RESULTS AND CALCULATION OF THE EROR VALUE OF THE RATIO AND SATURATION POINT AT CURRENT TRANSFORMER FEEDER KUALA DUA SUBTATION Ilhamdi, Muhammad; Gani, Usman A.; Rajagukguk, Managam
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 11, No 3: December 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v11i3.68704

Abstract

Electrical energy at this time is a very important need to meet the needs of humans, such as lighting, factory machinery, household electricity, and other needs. Electricity flowing from the plant is channeled through transmission lines to be distributed to low- and medium voltage customers. In the process of distributing electrical energy, a device is needed to lower the voltage, namely a transformer. For the purposes of measurement and protection in electrical installations, a current transformer is needed to convert the amount of current on the primary side of large-scale electrical installations into small-scale current quantities more precisely and accurately. Determine the accuracy class of the current transformer to be able to transform primary into secondary. The excitation current will cause deviations from the measurement results. This deviation is commonly known as a transformation error or ratio error. Every single current transformer that PLN will use must meet the criteria of the IEC 60044-1 standard. From the data manager of current transformers in 30 phases at the Kuala Dua substation, it can be concluded that the current transformers with a ratio of 300/5A, 400/5A, 500/5A and 600/5A, core metering accuracy classes of 0.2 S, 0.5, and 1, 5P and 10P protection core accuracy classes. With the maximum error of the metering core ratio of ±0.2%, ±0.5%, and ±1%, and the maximum error of the protection core ratio of ±3% and ±5%.
STUDY OF THE RELIABILITY OF THE EXTERNAL OVERVOLTAGE PROTECTION OF THE 7 IN 1 BUILDING AT TANJUNGPURA UNIVERSITY USING ELECTROGEOMETRY METHOD Florus, Egi; Danial, Danial; Rajagukguk, Managam
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 2: August 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i2.76291

Abstract

The 7 In 1 Building at Tanjungpura University, located in Pontianak, along the equator, faces frequent lightning strike risks, necessitating the installation of a reliable external voltage protection system. This study aims to determine the configuration of a conventional protection system using the electrogeometry method, comparable in reliability to the Early Streamer Emission (ESE) protection system. Considering a lightning current of 16 kA and a lightning strike distance to the ground of 60,63 meters, the required number of conventional protection systems for optimal reliability is determined: the Library Building needs 104 rods, the Conference Building 62 rods, Joint Lecture Buildings A and B at Tanjungpura University 59 rods each, and the Integrated Laboratory Building 17 rods. The use of conventional voltage protection systems with the electrogeometry method has proven to achieve good reliability, equivalent to that of Early Streamer Emission (ESE), despite generating a smaller protection radius and requiring a higher number of finials.
Design Of Palm Shell Charcoal Media For Earthing Systems haris, muhamad abdul; rajagukguk, managam; Gani, usman a
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 1: April 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i1.74695

Abstract

The grounding system is an important part that must be considered to ensure the safety and reliability of the operation of the electric power system. The grounding system has an influence on the smoothness and safety of the electric power system, especially when there is a disturbance related to the ground. The aim of the grounding system is to limit the voltage between the equipment and the ground to a safe condition for all operations, both normal conditions and when a disturbance occurs. . The earthing resistance value in a building is 5Ω, while for earthing electronic equipment a grounding resistance value of 3Ω is required and for lightning arrester equipment or arresters it is 1.75Ω and some devices even require an earthing resistance value of 1Ω. The design for the construction of Palm Shell Charcoal Media for Earthing Systems was made by considering several problems, such as how to reduce the resistance value to comply with standards (PUIL). One of the efforts made is to design the addition of palm oil shell charcoal with variations in hole diameter and depth of planting the charcoal in the media. The results showed that factors such as the diameter of the charcoal planting medium and the depth of rod planting had a positive influence on the resistance value. The solution that can be applied to achieve optimal earthing resistance values is to increase the diameter of the charcoal media and deepen the rod planting
TRAFO OIL FAILURE BASED ON DISSOLVED GAS ANALYSIS AND VOLTAGE BREAKDOWN RESULTS Fauji, Ahmad; Kurnianto, Rudi; Rajagukguk, Managam
Telecommunications, Computers, and Electricals Engineering Journal (TELECTRICAL) Vol 1, No 1: June 2023
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/telectrical.v1i1.69800

Abstract

Contamination on the transformer oil can lead to the oil failure of the transformator. Therefore, the transformer oil needs to be tested to make sure the oil is still in good condition. To find indications of oil failure the transformator needs to be tested DGA and BDV. From the results of the analysis with the TDCG method, the gas content in the transformer oil is less than 720 ppm so according to the IEEE standard, the oil transformer is indicated in normal conditions. In the Key Gas method, the percentage of the dominant carbon monoxide gas content is in the range of 85-90% so it is indicated that heating occurs on paper insulation. In the Duval Triangle method, the cut point between methane gas, ethylene and acetylene is in zone 1 and zone 2 so indicated that the oil of the transformator has thermal interference. In the BDV test, the transformer oil resistance values of 40.43 kV and 38.98 kV were obtained according to the IEC oil standard indicated in normal conditions. Of the four methods used to analyze the condition of the oil transformers concluded the oil of the transformers in a good condition but indicated heating.
STUDI PENGARUH PENAMBAHAN GARAM TERHADAP RESISTANSI PEMBUMIAN DI TANAH GAMBUT Ulhaq, Zia; Rajagukguk, Managam; Gani, Usman A
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 10, No 2: Juli 2022
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v10i2.56714

Abstract

Sistem pembumian merupakan sistem pengamanan terhadap perangkat yang menggunakan listrik sebagai sumber tenaga dari lonjakan listrik, khususnya tenaga petir. Memperhatikan kualitas nilai resistansi pembumian sangat penting, salah satunya ialah pengaruh kandungan zat aditif berupa garam pada Elektroda vertikal (driven rod) sehingga dapat mempengaruhi nilai resistansi pembumian. Karena garam merupakan suatu elektrolit yang dapat menghantaran arus listrik ke dalam tanah sehingga dapat meningkatkan konduktivitas atau daya hantar listrik di dalam tanah, khususnya di tanah gambut kering dan basah. Melakaukan pengukuran resistansi pembumian tanpa penambahan garam dan dengan penambahan garam di tanah gambut, agar dapat melihat penurunan nilai resistansi pembumian. Penelitian ini dilakukan dengan tiga batang elektroda yang panjangnya bervariasi yaitu 100 cm, 200 cm dan 300 cm yang di tanam pada kondisi tanah gambut kering dan tanah gambut basah. Hasil pengukuran  pada kondisi tanah gambut kering tanpa garam pada kedalaman 100 cm = 35,88 (Ω), kedalaman 200 cm = 5,9 (Ω), dan kedalaman 300 cm = 4,4 (Ω) dan pada kondisi tanah gambut kering dengan garam pada kedalaman 100 cm = 10,49 (Ω), kedalaman 200 cm = 4,50 (Ω), dan kedalaman 300 cm = 3,78 (Ω). Hasil pengukuran  pada kondisi tanah gambut basah tanpa garam pada kedalaman  100 cm = 33,38 (Ω), kedalaman 200 cm = 5,07 (Ω) dan kedalaman 300 cm = 3,99 (Ω) dan pada kondisi tanah gambut basah dengan garam pada kedalaman 100 cm = 9,75 (Ω), kedalaman 200 cm = 4,11 (Ω) dan kedalaman 300 cm = 3,47 (Ω).
STUDI PERENCANAAN PROTEKSI TEGANGAN LEBIH EKSTERNAL PETIR DI PLTS 1,5 MW UNIVERSITAS TANJUNGPURA Wongso, Dio Suseno; Rajagukguk, Managam; -, Danial
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 10, No 2: Juli 2022
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v10i2.60256

Abstract

Pembangkit Listrik Tenaga Surya (PLTS) adalah sebuah sistem pembangkit listrik yang mengubah energi dari cahaya matahari untuk menjadi energi listrik. Pada saat ini Universitas Tanjungpura sedang melakukan pembangunan PLTS sebesar 1,5 MW dengan luas lahan 11,075 m2. Sehingga dalam penelitian ini memiliki tujuan untuk mendesain sistem proteksi eksternal petir agar mampu memproteksi PLTS 1,5 MW Universitas Tanjungpura hingga kuat arus 3 kA menggunakan metode bola bergulir dan metode Early Streamer Emission (ESE). Kedua metode tersebut akan dipasang tiang terminasi udara dengan ketinggian 17 m. Pada metode bola bergulir akan dilakukan perhitungan jarak sambaran petir (R), sudut proteksi (α), radius proteksi (Rp), dan luas daerah proteksi (Ax) dengan nilai kuat arus petir (I) berdasarkan BS EN/IEC 62305 yakni 3 kA, 5 kA, 10 kA, dan 16 kA. Sedangkan pada metode Early Streamer Emission (ESE) akan dilakukan perhitungan jarak tambahan dari ESE (∆L), radius proteksi (Rp), dan luas daerah proteksi (Ax) dengan kuat arus petir (I) berdasarkan BS EN/IEC 62305 sebesar 3 kA atau pada tingkat proteksi I. Perhitungan metode bola bergulir pada sistem proteksi eksternal petir tertinggi berdasarkan BS EN/IEC 62305, yakni dengan kuat arus petir (I) 3 kA didapatkan jarak sambaran petir (R) sebesar 20,4234 m, sudut proteksi (α) yang menyinggung tiang terminasi udara dan bola bergulir sebesar 9,6483° dengan radius proteksi (Rp) dihasilkan sebesar 20,1344 m, menghasilkan luas daerah proteksi (Ax) sebesar 1273,5891 m2. Sedangkan perhitungan metode Early Streamer Emission (ESE) akan digunakan 2 terminasi udara ESE yang memiliki spesifikasi yang berbeda sebagai perbandingan sistem proteksi eksternal petir, dengan kuat arus petir (I) 3 kA atau tingkat proteksi I berdasarkan BS EN/IEC 62305. Menggunakan terminasi udara Pulsar 60 didapatkan jarak tambahan dari ESE (∆L) 60 m dengan radius proteksi (Rp) yang dihasilkan sebesar 80,3505 m, menghasilkan luas daerah proteksi (Ax) sebesar 20282,7596 m2. Dari hasil perhitungan tersebut dibuatlah desain 3 dimensi untuk melihat kebutuhan dari sistem proteksi eksternal petir sesuai dengan kuat arus petir (I). Dari hasil penelitian yang didapatkan dapat disimpulkan bahwa terminasi udara ESE memiliki keunggulan lebih efisien jika dibandingkan dengan terminasi udara konvensional menggunakan metode bola bergulir, dikarenakan terminasi udara ESE dapat memproteksi dengan menggunakan tiang terminasi udara yang lebih sedikit.
Impelementasi Sistem Parkir Otomatis Berbasis Java Desktop Menggunakan Metode Pengembangan Waterfall Pada PT. Tri Alfa Sinar Mandiri Arizona, Nanda Diaz; Rajagukguk, Managam
Jurnal Sistem Informasi Akuntansi Vol 5 No 2 (2024)
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/justian.v5i2.7557

Abstract

PT. Tri Alfa Sinar Mandiri is a company engaged in the field of parking system services which is a leading smart parking system provider in Indonesia by utilizing advanced technology to create an efficient, safe, and comfortable parking experience for all users. The parking system offered uses the latest technology and processes used to manage, organize, and facilitate the use of parking spaces in an efficient and structured manner. This application aims to improve comfort, security, and efficiency in finding, using, and paying for parking spaces. Some of the features include parking sensors using ultrasonic and infrared sensors to detect the presence of vehicles in each parking slot, CCTV cameras as a surveillance system to improve security in the parking area, Barrier Gate and Ticket Dispenser used as automatic access control for vehicles entering and exiting.
Comparative Study of Grade Cold Rolled Grain Oriented as The Core of A 3 Phase 200 kVA Distribution Transformer Using Ansys Maxwell Huvat, Alexander; Rajagukguk, Managam; A. Gani, Usman
Journal of Electrical Engineering, Energy, and Information Technology (J3EIT) Vol 12, No 3: December 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/j3eit.v12i3.89047

Abstract

This research discusses a comparative analysis of Cold Rolled Grain Oriented (CRGO) material as the core of a 3-phase 200 kVA distribution transformer using Ansys Maxwell software. CRGO material has several grades, namely M-3, M-4, M-5, and M-6, which differ in lamination thickness and core loss characteristics. The study aims to analyze and compare the flux density and core losses of the transformer with each CRGO grade. Simulations were conducted using Ansys Maxwell to compare flux density and losses for each CRGO grade to determine the most efficient material for use as a transformer core. The simulation results show that flux density increases over time across all tested CRGO grades, with grade M-3 exhibiting the highest flux density, followed by M-4, M-5, and the lowest being M-6. The simulation results for core losses are as follows: 226.2172 W for grade M-3, 242.1566 W for grade M-4, 259.2061 W for grade M-5, and 298.1239 W for grade M-6. Hysteresis and eddy current losses tend to be lower in lower-grade CRGO (M-3) compared to higher-grade CRGO (M-4, M-5, and M-6) due to the smaller lamination thickness in lower grades and larger lamination thickness in higher grades.
Co-Authors Ahmad Fauji, Ahmad ARI SUSANTO Ayong Hiendro Danial - Daniel Julius Pangihutan Manurung Fitriah Husin Florus, Egi Gani, Usman A. haris, muhamad abdul Hendro Priyatman Huvat, Alexander Ilhamdi, Muhammad Kho Hie Khwee Muhammad Rivai Nadhif, Irfan Nanda Diaz Arizona Regatra, Mexsy Rudi Kurnianto Rudi Kurnianto Rudy Gianto Sijabat, Juanda Parasian Siti Helmyati Ulwan, Nasih Usman A. Gani Wongso, Dio Suseno Zia Ulhaq, Zia