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All Journal INFOKUM Jurnal Info Sains : Informatika dan Sains
Zuraidah Tharo
Universitas Pembangunan Panca Budi. Medan, North Sumatera, Indonesia
Computer Science & IT

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A Performance Analysis of Electric Power Transmission Systems Using Ultra-High Voltage Direct Current (UHVDC) Technology Miftah Hadi R Harahap; Zuraidah Tharo; Parlin Siagian
INFOKUM Vol. 14 No. 03 (2026): Infokum, May - June 2026
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/infokum.v14i03.3099

Abstract

The increasing demand for electrical energy and the growing distance between power generation sources and load centers require transmission systems capable of delivering large amounts of power efficiently and reliably. Ultra-High Voltage Direct Current (UHVDC) technology has emerged as an effective solution for long-distance, high-capacity power transmission, offering lower power losses and higher efficiency compared to conventional transmission systems. This study aims to analyze the performance of electric power transmission systems using UHVDC technology, identify factors affecting system performance, and evaluate the impact of transmission distance on system efficiency and reliability. The research employs a quantitative descriptive approach through modeling and simulation of a UHVDC transmission system. Key performance parameters analyzed include power losses, transmission efficiency, voltage stability, and power transfer capability under various transmission distance scenarios. The results indicate that UHVDC systems are capable of transmitting large-scale power over long distances with relatively low power losses. Although increasing transmission distance leads to higher power losses, the rate of increase is significantly lower than that of conventional alternating current (AC) transmission systems, allowing UHVDC systems to maintain high efficiency. Furthermore, the UHVDC system demonstrates good voltage stability and operational reliability when operating within its design limits. Based on the findings, it can be concluded that UHVDC technology is a reliable and efficient solution for long-distance, high-capacity power transmission and has strong potential to support large-scale renewable energy integration and the development of modern power system infrastructure.
Efforts to Reduce Non-Technical Losses by Maintaining Kwh Meters at PT. PLN (PERSERO) ULP Panarukan Diana Pratiwi; Zuraidah Tharo; Dino Erivianto
Jurnal Info Sains : Informatika dan Sains Vol. 16 No. 02 (2026): Info sains, 2026
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the effectiveness of kWh meter maintenance as an effort to reduce non-technical losses in the electricity distribution system at PT. PLN (Persero) ULP Panarukan. Non-technical losses, which are often caused by meter inaccuracy, recording errors, and illegal usage, have a direct impact on the company's revenue. Using a quantitative descriptive approach, this study compares the level of non-technical losses before and after the implementation of a structured kWh meter maintenance and replacement program. Data were collected through field observations, interviews, and documentation from PLN's internal systems (ACMT, AP2T, EIS). The results show that maintenance activities successfully improved measurement accuracy, which led to a decrease in unrecorded energy. Thus, non-technical losses were reduced and resulted in significant financial savings. In addition, the study proposes an age-based meter replacement Operational Target (TO) as a strategic framework for determining maintenance action priorities. It is concluded that optimizing the maintenance program for aging kWh meters is a crucial operational step in controlling non-technical losses and securing PT. PLN's revenue.
Co-Authors Diana Pratiwi Dino Erivianto Miftah Hadi R Harahap Parlin Siagian