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All Journal INFOKUM Jurnal Scientia Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences
Dicky Lesmana
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Religion Arts Humanities Computer Science & IT Economics, Econometrics & Finance Education Mathematics Social Sciences

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Digital Learning: Modeling and Simulation of Three-Phase Short Circuit Fault Currents Using the Case Method for Strengthening MBKM Policy Rahmaniar Rahmaniar; Agus Junaidi; Adi Sastra P. Tarigan; Dicky Lesmana; M. Rizki S.; Abd. Hakim Butar-Butar
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 5, No 2 (2022): Budapest International Research and Critics Institute May
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v5i2.4725

Abstract

This study discusses learning innovations in the field of electrical engineering for the study of short circuit analysis with real data using a computer program. Students work on projects from real data in the field. The proposed method is to design a short circuit analysis programming device based on Matlab GUI. The syntax and GUI media are validated by experts. So that the standard procedure is valid for students in working on projects in real cases. At the initial stage, small-scale trial data was conducted on 15 students as an experimental class with a GUI in learning. 15 students in another class as the control class. The test results show that the experimental class has better learning independence than the control class, which is indicated by the ability to solve real problems with better project report results. The results show that the role of the GUI in digitizing learning becomes a tool to help foster motivation and independence in electric power system analysis learning to support the MBKM policy of the Ministry of Education and Culture of the Republic of Indonesia in one aspect of the Main Performance Indicators that applies the case method in learning.
Analysis Of Distribution Transformer Shifting To Address Overload And End Voltage At Gardu HJ177 In PT. PLN (Persero) Kertosono Service Unit Tri Della Cristy Sembiring; Dicky Lesmana; Yoffi Andinata
Jurnal Scientia Vol. 13 No. 03 (2024): Education and Sosial science, June - August 2024
Publisher : Sean Institute

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Abstract

The HJ177 substaion in its loading datareached 126.10% (± 63,054 kVA) of its capacity of 50 kVAwith an end voltaicge of 206 V and experienced avoltage dropge of 12%. The loading exceeded the maximum capacity of the stanord transformer of 80%, which has the potential for materialand finalncial losses for PT PLN (Persero) Kertosono Customer Service Unit (ULP). The voltalge drop resulting from this has exceeded SPLNT6.001-2013 of -±10% for low voltagege. Considering the matrix in the Health Index aassessment tier-1 Distribution Transformer, willingted to the percentage of tranformer loading, it's in the bald caBeca's categoryuse it is loaded ≥100%. To overcome this, an insert transformer caln be installed. With the originl load from 126.10% to 46.942% of the 50kVAcapacity, then the end voltage at the HJ177 Substation with the insertion of the transformer was originallly 206 V with avoltage drop of 12.0% increased to 213 V with avoltage drop percentage that decreased to 8.2%. The implementation of the transformer insertion for the HJ177 substation is effective in overcoming overloadyesnd improving the end voltage
An Analysis Of Reliability Protection Systems At PLTU PT. Indah Pontjan Senri Kamsianto Naibaho; Dicky Lesmana; Rahmaniar, Rahmaniar
Jurnal Scientia Vol. 13 No. 03 (2024): Education and Sosial science, June - August 2024
Publisher : Sean Institute

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Abstract

In this research, the aim is to analyze the reliability of the protection system at the Steam Power Plant (PLTU) at PT. Indah Pontjan. The protection system is a crucial component in PLTU operations, which functions to protect equipment and systems from interference and ensure operational safety. In this research, the reliability evaluation method is used to assess the effectiveness of the existing protection system. Analysis is carried out through operational data collection, protection system inspection, and simulation of various disturbance scenarios. The research results show that the reliability of the protection system at PLTU PT. Indah Pontjan already meets industry standards, but there are still several areas that require improvement. Some important findings include the detection of discrepancies in protection coordination, the need for improved protection devices, and the importance of further training for system operators. Recommendations are provided to strengthen the protection system, including the addition of modern protection devices, increased routine maintenance, and implementation of regular training programs. By increasing the reliability of the protection system, it is hoped that PLTU PT. Indah Pontjan can operate more safely and efficiently, reducing the risk of equipment damage and minimizing operational downtime. This research makes an important contribution to the development of a more reliable and effective protection system for the steam power generation industry.
An Analysis Of 20 KV Distribution Reliability System At PT. PLN ULP Tanjungbalai Bastian Radol Pardede; Dicky Lesmana; Siti Anisah
Jurnal Scientia Vol. 13 No. 03 (2024): Education and Sosial science, June - August 2024
Publisher : Sean Institute

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Abstract

This paper analysed the reliability of the 20 kV distribution system at PT. PLN ULP Tanjung-balai. The reliability of the electricity distribution system is crucial to ensure a stable power supply with minimal interruptions to consumers. The study aims to identify and evaluate the factors affecting the reliability of the 20 kV distribution network and propose solutions to enhance the system's reliability. The methods used in this study include the collection of historical outage data, analysis of network performance, and calculation of reliability indices such as SAIDI (System Average Interruption Duration Index), SAIFI (System Average Interruption Frequency Index), and CAIDI (Customer Average Interruption Duration Index). Additionally, the study utilizes network analysis software to simulate the operational conditions of the distribution network. The results of the study indicate that the reliability of the distribution system at PT. PLN ULP Tanjungbalai requires improvement, particularly in reducing the frequency and duration of power outages. Several identified causes of outages include extreme weather conditions, equipment failures, and external factors such as animals or vegetation. To improve system reliability, several actions are recommended, such as more intensive preventive maintenance, modernization of distribution equipment, and enhanced monitoring of the distribution network.
A Comparative Analysis Power Losses At The Connection Point Of Tap Connectors With Joint Press Connectors On Low Voltage Network East Binjai Customer Service Unit (ULP) Mira Yolanda Br Sembiring; Dicky Lesmana; Zulkarnain Lubis
Jurnal Scientia Vol. 13 No. 04 (2024): Education and Sosial science, September-December 2024
Publisher : Sean Institute

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Abstract

In the electric power distribution network or a condition where a distribution system in the distribution of electric power experiences high power losses due to the connection point on the distribution cable to the consumer. Therefore, in this study, a calculation will be carried out between the value of the comparison of the input and output measurements between the connection points using Tap Connector with Joint Press Connector, after obtaining the measurement results, determine the calculation results for the loss of electrical power energy in rupiah units. A Tap Connector Joint Press Connector. After the measurement and calculation, the Power Loss is the result of the calculation between the input and output at the Tap Connector connection point. There is a difference in Power Loss of 134.3 Watts while at the Joint Press Connector the Power Loss Difference is 0 Watts. Power Loss Calculation Results in Rupiah Units From the results of the power loss analysis calculation, it can be seen that the power loss at the Tap Connector connection point with a difference in power loss value of 134.3 W and if calculated in rupiah units, then the loss of electrical energy in one month is Rp. 130,539.6, -. If it occurs in one year in a 24-hour time calculation, it is 130,539.6 x 12 Months = 1,566,475.2, -. The cause of power loss at the Tap Connector connection point is due to poor installation, as well as Tap Connector Equipment that is not SPLN standard and the age of the Tap Connector that has worn out
An Analysis Of The Reliability 150 kV High Voltage Air Line Conductors Towards Electric Field Strength Muhammad Romim; Solly Aryza; Dicky Lesmana
Jurnal Scientia Vol. 13 No. 04 (2024): Education and Sosial science, September-December 2024
Publisher : Sean Institute

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Abstract

Analysis of conductor reliability on 150 kV high voltage overhead lines (SUTT) against electric field strength is important to ensure the stability and safety of electricity distribution. This study aims to analyze the impact of electric field strength generated by 150 kV SUTT conductors on the operational reliability of the line, including its effect on system performance and the safety of the surrounding environment. Measurements and simulations of electric field strength were carried out at various distances from the conductor to understand the distribution of the electric field generated. The results of the study indicate that high electric fields around the conductor can affect the performance of the insulator, increase the risk of corona, and reduce the operational life of the line components. In addition, the electric field generated can also affect human health if exposure exceeds the limits recommended by safety standards. From the results of this analysis, it is recommended to routinely monitor the electric field strength around the line and implement mitigation measures to ensure long-term operational safety and reliability.
Analysis Of The Efficiency Of Using Brushless DC Motors On Load And Speed On Electric Motorcycles Erpita Samosir; Dicky Lesmana; Beni Satria
INFOKUM Vol. 13 No. 01 (2025): Infokum
Publisher : Sean Institute

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Abstract

This study examines the efficiency of electric power in BLDC motors as electric motorcycle drivers with various load and speed experiments. Electric motorcycles are one of the vehicles that are in great demand by the public. BLDC motors are the main drivers of electric motorcycles where motor capacity planning includes motor power and torque which greatly affect the acceleration and speed of the motorcycle. Motor capacity planning is obtained by calculating the total weight, the location of the motor's center of gravity, the desired acceleration, tire rolling resistance to asphalt, air resistance and road slope angle. From the calculations and analyses that have been carried out, the required motor power is 2.5 kW. Testing the motor's ability to carry loads is carried out by providing variations in passenger and goods loads of 58 kg, 98 kg and 135 kg, and driven with a target speed of 10 km / h, 20 km / h and 30 km / h.
Analysis of Solar Power System Planning For Street Lighting SUPPLY at Campus I Universitas Pembangunan Panca Budi Medan Mhd Hasbi Ramadhan; Haris Gunawan; Dicky Lesmana
INFOKUM Vol. 13 No. 04 (2025): Infokum
Publisher : Sean Institute

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Abstract

Solar energy is a renewable energy source (EBT) that will not run out. One of the uses of solar energy is as a source of energy for solar-powered public street lighting (PJUTS). Public street lightingCampus Area of Panca Budi Development Universityaims to help improve road safety at night. In this study, planning will be carried out for solar-powered Public Street Lighting (PJUTS) located inCampus Area of Pancasila Development Universitywith a road width of 5 m and a road length of 320 m. Planning for solar-powered public street lighting (PJUTS) requires 14 lighting points with a load of 24 Watt LED lights. With a pole height of 7 m and a distance between poles of 25 m, the lighting intensity is 6.72 lux for manual calculations. Meanwhile, according to applicable standards, the lighting intensity value is 3-7 lux. The solar module used has a capacity of 75 Wp. PJUTS operates 12 hours a day and is able to continue operating for 3 days without a solar energy source. The total cost that must be incurred for this solar-powered public street lighting is IDR 1,224,500,000
Analysis Of Power Requirements and Solar Power Plant (PV System) Components For an Electric Vehicle Charging Station at Universitas Pembangunan Panca Budi Medan Hamdani Ahmad Rangkuti; Dicky Lesmana; Haris Gunawan
INFOKUM Vol. 13 No. 04 (2025): Infokum
Publisher : Sean Institute

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Abstract

This study focuses on determining the capacity of the solar power plant (PLTS) components used as an energy source at a public electric vehicle charging station (SPKLU) to charge the batteries of electric cars at Universitas Pembangunan Panca Budi Medan. Calculations are carried out to obtain the area of the solar module, the power required, the number of solar panels, the SCC capacity, the backup battery, and the charging time of the electric vehicle. The research method used is a research method with an approach calculation by comparing several similar references related to planning in building a PLTS. The battery data collection method is carried out by observation, literature study and collection of weather condition data through the BMKG of Medan City. The results of the study show that with a solar intensity of Gav 4.42 kWh/m2/day, a module array area of 42,071 m2 is required. With a sunlight intensity of 1000 W/m2, the power generated by the area is 6,731 Wp. By using a 120 WP solar module, the number of panels used is 60 units consisting of 15 strings of 4 units in each string. The system can produce 8,333 Wp, 71 V 103 A of power. The SCC produces 128.73 A. The charging time required is 8.63 hours or 8 hours 37 minutes.
Analysis of Low Voltage Cable Insulation Resistance Test in PT. PLN (Persero) UPP Sumbagut 1 Building Fahredha, Khairul; Muhammad Erpandi Dalimunthe; Dicky Lesmana
INFOKUM Vol. 13 No. 06 (2025): Infokum
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/infokum.v13i06.2975

Abstract

Insulation resistance testing is an important part of electrical installation system maintenance to ensure system safety and reliability. This study aims to analyze the condition of low-voltage cable insulation in the PT. PLN (Persero) UPP Sumbagut 1 building through insulation resistance testing using a megger. Measurements were conducted at several distribution panel points by comparing the results with the 2011 PUIL standard. The test results showed a decrease in insulation quality at several points, especially in the generator panel area, which has the potential to cause disruption to the power distribution system. The decrease in insulation resistance can be influenced by various factors such as cable age, environmental humidity, and installation conditions. This study provides recommendations for preventive measures in the form of cable replacement at critical points and the implementation of periodic testing to maintain the performance of the electrical system. In addition, evaluation of installation design and environmental control is also needed to increase cable service life and overall system efficiency.
Co-Authors Abd. Hakim Butar-Butar Adi Sastra P. Tarigan Asrul Andi Bastian Radol Pardede Beni Satria Erpita Samosir Fahredha, Khairul Hamdani Ahmad Rangkuti Haris Gunawan M. Rizki S. Mhd Hasbi Ramadhan Mira Yolanda Br Sembiring Muhammad Erpandi Dalimunthe Muhammad Romim Rahmaniar Rahmaniar Rahmaniar Rahmaniar, Rahmaniar SATRIYAS ILYAS Senri Kamsianto Naibaho Siti Anisah Tri Della Cristy Sembiring Yoffi Andinata Zulkarnain Lubis Zuraidah Tharo