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All Journal Prosiding Snastikom The Journal of Information Technology, Computer Science, and Electrical Engineering
Adisastra Pengalaman Tarigan
Universitas Pembangunan Panca Budi
Computer Science & IT Library & Information Science

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PERANCANGAN PEMBANGKIT GELOMBANG ULTRASONIC VARIABEL MENGGUNAKAN MIKROKONTROLER ATMEGA 16 Herdianto; Adisastra Pengalaman Tarigan
SEMINAR NASIONAL TEKNOLOGI INFORMASI & KOMUNIKASI Vol. 1 No. 1 (2020): PROSIDING SNASTIKOM 2020
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.68 KB)

Abstract

One of the factors causing the decline in national rice production is the attack of pests on rice. Based on data obtained from the agricultural department which has been processed by local data, it is known that there are 6 types of pests that attack rice plants in Indonesia, namely brown planthoppers, rats, rice stem borer, blast, kresek leaves and tungro. One method that can be used to repel pests in rice is by utilizing ultrasonic waves but is still limited to a range of only 4 meters in intensity. Therefore, a research aimed at generating ultrasonic waves will be carried out with the intensity of the ultrasonic wave range reaching 20 meters. The stages of research carried out include collecting data, analyzing data, designing circuit design, implementing circuit design, testing circuit design implementation and testing circuit design implementation. The ultrasonic wave generator designed in this study consists of 2 parts, namely a frequency generator of 20 - 50Khz and an amplifier of the output amplitude. Tests carried out in the research are still on the frequency generator section and the results show that the frequency variation of 20 - 50Khz can be produced properly by the ATMEGA 16 microcontroller.
LOAD DISTRIBUTION TO REDUCE POWER LOSS IN DISTRIBUTION TRANSFORMERS AT PT PLN (PERSERO) ULP LEMBAYUNG Novi Kristiani Sidabalok; Hamdani; Adisastra Pengalaman Tarigan
Journal of Information Technology, computer science and Electrical Engineering Vol. 2 No. 2 (2025): June-September 2025
Publisher : Yayasan Sinergi Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jitcse.v2i2.206

Abstract

Load balancing on distribution transformers is an important step to improve the efficiency of electricity distribution and reduce power losses. Load imbalance between phases can cause an increase in neutral current, contributing to conductor power loss and financial loss. This research was conducted on the BR 114 distribution transformer at PT PLN (Persero) ULP Lembayung, with the aim of analyzing the impact of load balancing on neutral current, conductor power loss, and financial loss. The calculation results show that load balancing can reduce the neutral current from 150 A to 97 A, thereby decreasing the neutral conductor power loss from 2.00797 kW to 0.37129 kW. Financially, the savings obtained from load balancing amount to Rp 80,460,399. Thus, load balancing has proven to be an effective solution in reducing power losses and improving the efficiency of electricity distribution.
OVERCOMING OVERLOAD OF DISTRIBUTION TRANSFORMERS WITH THE UPRATING METHOD AT THE SM01 TIE LINE SINABANG ULP SINABANG Newmont Djoel Panggabean; Hamdani; Adisastra Pengalaman Tarigan
Journal of Information Technology, computer science and Electrical Engineering Vol. 2 No. 2 (2025): June-September 2025
Publisher : Yayasan Sinergi Multidimensi Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jitcse.v2i2.207

Abstract

This study discusses the overcoming overload problem in the distribution transformer that occurred at the SM01 Tie Line Sinabang ULP Sinabang Feeder. Transformer overload can lead to decreased electrical system performance, equipment damage, and potential power outages. The method used in this study is uprating, which is increasing the capacity of the transformer to meet the increasing load needs. The study begins with the analysis of historical load data and the identification of the factors that cause overload. Furthermore, simulations were carried out to evaluate the performance of the transformer under different load conditions. The uprating method is applied by taking into account the applicable technical specifications and operational standards. The simulation results show that increasing the capacity of the transformer can reduce the frequency of overload events and improve the reliability of the power supply. From the results of the study, it was concluded that the uprating method was effective in handling the problem of overload of distribution transformers at SM01 Feeder. Recommendations for the implementation of uprating and periodic monitoring of transformer conditions are also prepared to ensure operational continuity and safety of the electricity distribution system.
Co-Authors Hamdani Herdianto Herdianto Newmont Djoel Panggabean Novi Kristiani Sidabalok