Article Per Year (5 Year)
p-Index From 2021 - 2026
0.562
P-Index
This Author published in this journals
All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Impresi Indonesia
Nathaniel Lumalan Bijang
Politeknik Negeri Manado
Religion Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Social Sciences Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Analysis of 20 kV Underground Cable Network Implementation on SM3 Feeder, Tomohon Main Substation Yehezkiel Eliezer Tangkawarouw; Sandro Welly Lendeng; Arnold Robert Rondonuwu; Nathaniel Lumalan Bijang; Donald Bastian Noya
Jurnal Impresi Indonesia Vol. 5 No. 5 (2026): Jurnal Impresi Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v5i5.7734

Abstract

The continuous growth of electricity demand requires a reliable and efficient distribution system. The SM3 Feeder at the Tomohon Main Substation (GI Tomohon), managed by PT PLN (Persero) UP3 Manado, is a critical medium-voltage distribution network serving the Tomohon city centre area. The feeder currently employs overhead aerial conductors that are vulnerable to environmental disturbances such as extreme weather, strong winds, lightning, and vegetation contact, which leads to frequent outages and reduced supply quality. This study investigates the implementation of a 20 kV underground cable network on the SM3 Feeder as a strategy to improve system reliability. The methodology encompasses field surveys, technical data collection, and comparative performance analysis of the distribution system before and after underground cable implementation. Quantitative analysis was applied to evaluate technical parameters including fault frequency, and the reliability indices SAIDI and SAIFI, while qualitative analysis is used to assess the practical advantages and constraints observed during field implementation. Results demonstrate that underground cable implementation significantly reduces environmentally induced faults, providing improvements in safety, system reliability, and urban aesthetics. Although capital investment and installation costs are considerably higher than those of overhead networks, the long-term operational benefits including substantial reduction in fault frequency, improved supply continuity, and longer service life justify the investment. Underground cable networks are thus confirmed as an effective solution for enhancing power distribution quality and reliability, particularly in urban areas with high fault incidence.
Load Imbalance Analysis on Low-Voltage Distribution Network: A Case Study on SM3 Feeder, Tomohon Main Substation Kapri Benaya Alexander Rompis; Rio Carolus Junio Runtu; Nathaniel Lumalan Bijang; Arnold Robert Rondonuwu
Jurnal Impresi Indonesia Vol. 5 No. 5 (2026): Jurnal Impresi Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v5i5.7774

Abstract

Load imbalance on low-voltage distribution networks arises from the uneven distribution of single-phase loads across a three-phase system, resulting in elevated neutral currents, increased power losses, and degraded voltage quality. This research systematically analyzes the degree of load imbalance on the low-voltage distribution network of SM3 Feeder, Tomohon Main Substation, PT PLN (Persero) UP3 Manado, using phase current measurements, neutral current readings, and customer load data collected from field surveys. The methodology employed phase current measurements, neutral current readings, and customer load data collected from field surveys at five measurement points representing diverse loading conditions and network topologies. The percentage load imbalance (PLI) was calculated and benchmarked against SPLN D3.002-1:2007 and IEEE Std 1159 standards, with measurements conducted during morning, afternoon, and evening peak periods. Findings reveal significant imbalance in four of five assessed feeder segments, with the most critical level reaching 31.7% at MP-5. Elevated neutral currents produced measurable additional power losses in the neutral conductor, and customer terminal voltage violations were confirmed at MP-3 and MP-5, with the most severe deviation reaching ?9.7% below the nominal 220 V. The study concludes that systematic load redistribution at MP-5, MP-3, and MP-1, combined with mandatory phase allocation for new connections and quarterly monitoring protocols, is required to restore standard compliance and improve network efficiency, power quality, and reliability on the SM3 Feeder distribution system.
ANALISIS KINERJA PEMBANGKIT LISTRIK HYBRID PLTS–MIKROHIDRO SKALA KECIL 500 W SEBAGAI PENERANGAN JALAN UMUM BAGI PETANI DI KELURAHAN TARATARA, KOTA TOMOHON Marcelino Sanio Supit; Johan F. Makal; Nathaniel Lumalan Bijang
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.48748

Abstract

The lack of public street lighting (PJU) in remote farming areas around Tomohon City forces farmers to walk through plantation roads in the dark, raising both safety and productivity concerns during after-hours activities. This study analyzes the performance of a small-scale 500 W hybrid power system that combines solar photovoltaic (PV) and microhydro generation to supply street lighting for farmers in Taratara Village, Tomohon. The system consists of a 400 Wp monocrystalline PV array, a 500 W crossflow microhydro turbine with a permanent-magnet generator, a 24 V/100 Ah deep-cycle battery bank, an MPPT charge controller, a dump-load resistor, and DC/AC protection devices. Field testing was carried out for fourteen consecutive days, recording voltage, current, generated energy, battery state-of-charge, and load behaviour through an ESP32-based data logger. The PV subsystem delivered an average of 1.92 kWh/day at 14.76% conversion efficiency, while the microhydro turbine produced 8.71 kWh/day at 40.66% hydraulic-to-electrical efficiency. The combined hybrid output of 10.27 kWh/day comfortably covered the load demand of six 30 W LED lamps operating 12 hours nightly (2.16 kWh/day). The control and protection system kept battery SoC within 62-95% and successfully cleared all four simulated fault scenarios within 18-320 ms. The hybrid configuration is therefore considered technically reliable as an off-grid PJU solution for remote agricultural areas.
Co-Authors Arnold Robert Rondonuwu Donald Bastian Noya Johan F. Makal Kapri Benaya Alexander Rompis Marcelino Sanio Supit Rio Carolus Junio Runtu Sandro Welly Lendeng Yehezkiel Eliezer Tangkawarouw