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INDONESIA
Jurnal Mahasiswa TEUB
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 25 Documents
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Search results for , issue "Vol. 12 No. 1 (2024)" : 25 Documents clear
IDENTIFIKASI PENYEBAB DAN TEKNIK PENURUNAN SUSUT ENERGI LISTRIK MENGGUNAKAN METODE FAILURE MODE END EFFECT ANALYSIS PADA PT PLN (PERSERO) ULP KANGEAN MADURA Gumintang, Adnan; Dhofir, Moch.; Nurwati, Tri
Jurnal Mahasiswa TEUB Vol. 12 No. 1 (2024)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

PT PLN (Persero) is one of the state-owned enterprises responsible for managing electricity in Indonesia. PLN playsa crucial role in providing electricity services to the community through generation, distribution, and sales. At PT PLN(Persero) ULP Kangean, there are 33,737 customers with a connected load of 2,278,050 VA. However, there is adiscrepancy between the amount of energy sold and the amount of energy issued during this period. Two maincomponents, namely technical and non-technical components, are the two factors behind this energy loss. The FailureMode and Effect Analysis (FMEA) method is used in this study to identify the causes of electrical energy loss. Dataanalysis conducted from January to September 2022 shows that the Low Voltage Network (JTR) is the main cause ofelectrical energy loss at PT PLN (Persero) ULP Kangean. There are several failures in the JTR, where damage to theelectrical conductors is one of the contributors to the highest Residual Risk Priority Number (RPN), namely 23.1 or31.37%. This error is a major concern in efforts to repair and control energy loss. This study provides valuable insightsinto the main sources of energy loss at PT PLN (Persero) ULP Kangean, and enables the implementation of more preciseand efficient actions to improve the efficiency of electricity distribution and address failures that can cause energy loss. Keywords — Electrical Energy Shrinkage; PT PLN (Persero) ULP Kangean; FMEA; JTR; distribution cable
ANALISIS KONDISI MINYAK TRANSFORMATOR DENGAN UJI DISSOLVED GAS ANALYSIS (DGA) DAN BREAKDOWN VOLTAGE PADA PT PLN NUSANTARA POWER UP MUARA KARANG Badriyah, Intan Layla; Dhofir, Moch.; Nurwati, Tri
Jurnal Mahasiswa TEUB Vol. 12 No. 1 (2024)
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Abstract

Transformer oil is one of the important components in a transformer. In transformers, oil functions as an insulating material andalso acts as a coolant. Transformer oil will have loads in the form of electric fields and thermal loads when the transformer isoperating. The load on the oil causes the temperature of the oil to increase, so that the value of the breakdown voltage decreases and the quality of the oil decreases. Apart from that, this load also causes gases to be contained in the oil. The presence of gases in transformer oil indicates that there is an indication of interference which will result in a decrease in the quality of the insulation. A decrease in insulation quality can cause transformer failure. In this research, the tests carried out were the Dissolved Gas Analysis (DGA) test to determine the gas contents and the Breakdown Voltage test for the breakdown voltage value. Tests on transformer oil were carried out at PT PLN Nusantara Power UP Muara Karang. The results of the research show that based on DGA testing, the faulty transformer has indications of thermal disturbances accompanied by electric arc splitting and damage to the paper insulation, while active transformers have indications of thermal disturbances accompanied by damage to the paper insulation. Based on the breakdown voltage test, the faulty transformer and the active transformer are in normal condition because they are below the standard value (40 kV/2.5 mm). Keywords: Transformer oil, insulation quality, gas content, breakdown voltage
PENGARUH LAPISAN HIDROFOBIK PADA PERMUKAAN ISOLATOR KERAMIK TIPE POST TERHADAP TINGKAT ARUS BOCOR PADA KONDISI KERING DAN BASAH Wijaya, Rizki Adi; Dhofir, Moch.; Hasanah, Rini Nur
Jurnal Mahasiswa TEUB Vol. 12 No. 1 (2024)
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In this research will be explained about the effect of silicon rubber coating on ceramic insulators type post on leak current levels in dry and wet conditions. The research method used is to collect data through testing leakage current and contact angle at the High Voltage Laboratory, Department of Electrical Engineering, Faculty of Engineering, Brawijaya University and simulating the electric field distribution in Ceramic Insulator Type Post with FEMM 4.2 software. The tests were conducted using high voltage AC with variations of voltage tests of 4.8,12,16,20, and 25 kV. The results obtained in this research are that the largest electric field is near the voltage area. Then we get a contact angle of more than 90° or is hydrophobic when coated with silicon rubber, whereas the surface of the insulator which is not coated with silicone rubber has a contact angle of less than 30° or is hydrophilic, and there is an effect of the silicon rubber layer on the leakage current level, namely the greater the wetting discharge value and test voltage, the greater the leakage current value and the greater the surface resistance value. and electrical power losses Keywords: ceramic insulator,post type, contact angle, leakage current, field intensity, hydrophobic
PENGARUH PERBESARAN LUAS ELEKTRODA TERHADAP TEGANGAN TEMBUS PADA DIELEKTRIK UDARA MENGGUNAKAN SUMBER TEGANGAN TINGGI AC Angkasa, Aulia; Dhofir, Moch.; Hasanah, Rini Nur
Jurnal Mahasiswa TEUB Vol. 12 No. 1 (2024)
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Abstract

Breakdown voltage events often occur as a failure of the insulation system in electrical equipment, whether in liquid dielectrics in the form of oil or gas dielectrics in the form of air. An example of a breakdown voltage phenomenon in an electric power system such as a substation is failure (breakdown) between two contacts/conductors of a circuit breaker (CB) or transformer in a substation. The difference in the dimensions of the area of the two contacts/conductors of the circuit breaker influences the distribution of the electric field around the contacts so that it can influence the probability of a breakdown voltage occurring between the two contacts of the circuit breaker which can be likened to two electrodes with different dimensions. In calculatingthe probability of a breakdown voltage occurring, the Gaussian distribution function can be used based on the law of electrode area enlargement (enlargement law). Therefore, this research will describe the effect of increasing the electrode area on the characteristics of the breakdown voltage using an AC (Alternating Current) voltage source. The research method used is by taking data through testing breakdown voltage and leakage current at the High Voltage Laboratory, Department of Electrical Engineering, Faculty of Engineering, Brawijaya University and simulating the distribution of the electric field at each variation of electrode magnification a, 2a, 3a, 4a, and 5a using FEMM 4.2 software. The results obtained in this research are the influence of increasing the electrode area on the characteristics of the breakdown voltage and leakage current. Keywords — Breakdown voltage; Leakage current; Probability; Enlargement law; Electric field
RANCANG BANGUN SISTEM MONITORING DAN OTOMATISASI PADA MODEL ZERO WASTE INTEGRATED FARMING SYSTEM (ZWIFS) BERBASIS INTERNET OF THINGS Putra, Atha Darari; Zainuri, Akhmad; Abidin, Zainul
Jurnal Mahasiswa TEUB Vol. 12 No. 1 (2024)
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Abstract

With the projection of the world population reaching 9.6 billion by 2050, the challenge of increasing foodproductionbecomes crucial. The lack of agricultural production growth can pose a threat of food crisis with wide-rangingimpactsoneconomic and social stability. The Indonesian government has responded by enacting Food Law Draft No. 18 of 2012, withthree main paradigms: Food Sovereignty, Food Self-Sufficiency, and Food Security. However, other challenges arise, suchas workforce regeneration in agriculture and reduction of agricultural land. Zero Waste Integrated FarmingSystem(ZWIFS), which integrates agriculture, fisheries, and livestock farming, offers a solution that can address all of thesechallenges. This system focuses on the harmony between natural resources, human resources, and the environment, withazero waste system approach. In the ZWIFS, elements such as aquaponic vegetable plants, chicken coops, maggotcultivation, and fish ponds interact synergistically. However, the management and maintenance of these various elementsrequire efficient monitoring and automation systems. This research aims to design and develop monitoring andautomationsystems in ZWIFS. This system includes real-time monitoring of air temperature, air humidity, water temperature, waterlevel, water pH, and water TDS. In addition, the automation system includes scheduled feeding, pumpandaeratorregulation, and automatic water sampling. The integration of this technology is expected to create an efficient, sustainable,and waste-free ZWIFS, providing positive impacts both economically and environmentally. Keyword: farming, Internet of Things, zero waste

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