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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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Journal : Jurnal Scientia

 1 
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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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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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 Solar Panel Design as a Power Source For CCTV at PT. Link NET, TBK Asrul Andi; Zuraidah Tharo; Dicky Lesmana
Jurnal Scientia Vol. 13 No. 04 (2024): Education and Sosial science, September-December 2024
Publisher : Sean Institute

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Abstract

A computer system that uses a video camera to display and record an image at the time and place where the device is installed is CCTV. However, CCTV currently relies on PLN sources. If the PLN source goes out, CCTV will not work. One solution to overcome PLN sources that often go out is to use solar energy and remember that solar energy is very environmentally friendly. This CCTV uses an Arduino Nano microcontroller as a monitoring of battery voltage as a source of electrical power assisted by SCC to regulate the incoming current from the solar panel and the output current to the load used and the battery as a storage voltage of one of the electronic devices that are often used by humans.
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