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All Journal Jurnal Scientia Budapest International Research in Exact Sciences (BirEx Journal) Jurnal Riset Rumpun Ilmu Teknik (JURRITEK)
Adi Sastra P Tarigan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Mathematics Physics Transportation

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Modification of Electrical Supplay System on Fuel Feeder Gas Engine Power Plant Based on Inverter (DC-AC) in PLTMG Balai Pungut Muhammad Fadlan Syahputra; Siti Anisah; Adi Sastra P Tarigan
Budapest International Research in Exact Sciences (BirEx) Journal Vol 4, No 4 (2022): Budapest International Research in Exact Sciences, October
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v4i4.7229

Abstract

The Balai Pungut Gas Engine Power Plant (PLTMG) is one of the plants in the Pekanbaru sector and part of the North Sumatra Plant (KITSBU). This PLTMG has a capacity of 7 x 17 MW with dual fuel systems, namely Solar and Gas. For gas fuel, it is the main fuel of PLTMG because the gas efficiency is higher than diesel. However, diesel fuel is the main fuel that must be used for PLTMG engines as gas fuel, so diesel fuel must be supplied continuously for the consumption of PLTMG needs. Therefore, the Fuel Feeder system for Solar fuel must have reliable performance. However, at PLTMG Balai Pungut, there are often problems or problems with the Fuel Feeder, this is because the protection system shows the occurrence of a Fuel Feeder travel system that occurs in fuel feeder equipment components that experience voltage input instability. After analysis due to the impact of resources in the SUTT System Network as a supply center line experienced Transient. Therefore, the Power Supplay Electrical System for Fuel Feeder equipment needs to be modified with the addition of an inverter, the source of which is taken from the battery as a source of constant direct voltage and voltage converted back and forth to play the electricity system of the Fuel Feeder PLTMG Balai Pungut.
Simulation Design Of A Baggage Handling System Based On Arduino Uno At The Airport Departure Terminal Dr. Ferdinand Lumban Tobing Sibolga Ahmad Fahrur Rozi Matondang; Adi Sastra P Tarigan; M. Rizki Syahputra
Jurnal Scientia Vol. 13 No. 03 (2024): Education and Sosial science, June - August 2024
Publisher : Sean Institute

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Abstract

Baggage handling plays an important role in ensuring the comfort of passengers traveling by airplane and ensuring that the baggage can be transported with the passenger on the same aircraft. However, passengers often do not know how to handle the luggage they have handed over at the check-in counter until it finally arrives in the plane's hold. This system is very important to support flight security and safety at an airport. The implementation of an automated baggage handling system (BHS) / Hold Baggage Screening (HBS) is very necessary to minimize cases of baggage theft. where this research aims to determine the Baggage Handling System (BHS) design planning at Dr. Ferdinand Lumban Tobing Sibolga, which is planned to use the Aerotropolis Airport concept. Apart from that, this research also aims to understand how the BHS components workDr. Airport Ferdinand Lumban Tobing SibolgaWhat is Planned.Where this research was carried out using the AutoCAD 2012 application and other engineering applications that allow easier planning and design. The BHS design used in this research refers to the BHS framework that has been implemented at Kuala Namu International Airport in Deli Serdang. The research results show that the BHS design has seven main stages, starting from check-in inspection, Out of Gauge (OOG) inspection to baggage that has a weight and dimensions that exceed the maximum size, X-Ray inspection MVXR 5000 (Screening Level 1/2), Manual Coding Station (MCS), X-Ray inspection RTT 110 (Screening Level 3/4), inspection by Avsec experts and reconciliation (Level 5/6), to the use of SCADA (Supervisor Control Data Acquisition).
The Comparison Of Starting Current In Three-Phase Induction Using Direct And Autotransformer Using Matlab Simulation Sabam Sitorus; Adi sastra P Tarigan; Beni Satria
Jurnal Scientia Vol. 13 No. 03 (2024): Education and Sosial science, June - August 2024
Publisher : Sean Institute

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Abstract

Starting an induction motor can lead to a substantial initial current surge, causing a voltage drop that may surpass permissible limits. This surge, known as starting current, is characterized by a sudden and high-value current that occurs during the operation of a transformer or motor. Therefore, it is imperative to implement a proper starting method for a 3-phase induction motor. This study focuses on a 10 hp or 7.5 kW induction motor and employs Matlab simulation to analyze the starting characteristics. The simulation results reveal that an increase in the source voltage correlates with a proportional rise in the starting current. Adjusting the source voltage entering the Autotrafo provides a means to regulate and reduce the magnitude of the starting current. In the case of direct starting, the simulation indicates a starting current of 108.5 A at a speed of 1476 rpm, contrasting with a normal current of 9.218 A at a speed of 1464 rpm. On the other hand, starting with the autotransformer method yields a starting current of 76.14 A at a speed of 1467 rpm, with a normal current of 9.078 A at a speed of 1424 rpm. This results in a notable difference in starting current of 32.36 A. Comparatively, direct starting generates the highest starting current, emphasizing the necessity to avoid this method to prevent rapid motor breakdown. The autotransformer method proves to be a more efficient alternative, showcasing a reduced starting current and providing a more reliable and sustainable approach to initiate the induction motor.
Analisis Perencanaan Mutasi Trafo pada Gardu CMY dengan Metode Least Square untuk Keandalan Sistem Distribusi di PT PLN (Persero) ULP Labuan Dhita Safira Putri; Siti Anisah; Adi Sastra P Tarigan
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7547

Abstract

Distribution transformers play a crucial role in delivering electrical energy from the distribution system to consumers to ensure power quality and supply continuity. However, in practice, overload conditions often occur due to increasing demand and load growth that exceed the transformer’s rated capacity. This situation can lead to reduced efficiency, increased power losses, and accelerated equipment aging. This study aims to analyze the performance of the CMY distribution transformer at PT PLN (Persero) ULP Labuan, which operates beyond its nominal capacity, and to propose an alternative solution through transformer mutation, namely the replacement of the existing unit with a transformer of more appropriate capacity based on load analysis results. The Least Square Method is employed to predict future load growth and determine the projected time when the transformer will again experience overload after the mutation. The results indicate that the existing 100 kVA transformer is overloaded and should be replaced with a 160 kVA unit. After the mutation, the loading percentage decreases significantly, the transformer’s lifespan is extended, and the reliability of the distribution system improves. Furthermore, the Least Square prediction suggests that the new transformer may experience overload again in future years if no further planning is carried out. Therefore, transformer mutation can be considered an effective and medium-term solution to enhance and maintain the reliability of the electrical distribution system within the operational area of PT PLN (Persero) ULP Labuan.
Co-Authors Ahmad Fahrur Rozi Matondang Beni Satria Dhita Safira Putri M. Rizki Syahputra Muhammad Fadlan Syahputra Sabam Sitorus Siti Anisah Siti Anisah