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Optimization of Medium Voltage Distribution Network Maneuver for Feeder Reliability in Fault Conditions Risnandar, Muhammad Aris; Faridah, Linda; Nurdiansyah, Rian
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 16, No 1 (2025): JURNAL SIMETRIS VOLUME 16 NO 1 TAHUN 2025
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v16i1.13739

Abstract

Network maneuvers in the medium voltage distribution system are performed during faults or maintenance to maintain continuity of electricity service. This study focuses on analyzing the network conditions during maneuvers in the Tasikmalaya area to identify the optimal feeder backup strategy and minimize voltage drops and power losses. The analysis was conducted using ETAP software with simulations of various load scenarios (40%, 80%, and 100%). The results show that the best voltage in the existing condition is found on the SBBC feeder, with a voltage value of 0.9710 p.u at a 100% load condition. Meanwhile, the smallest power losses occur on the TMSR feeder, amounting to 233.6 kW. In the maneuver scenario, the best results are obtained when the TMSR feeder is backed up by the PDYN feeder through the LBS RIMA switch, with a voltage of 0.9612 p.u on the TMSR feeder and 0.9533 p.u on the PDYN feeder, and total power losses of 606.6 kW. This study highlights the importance of in-depth analysis in selecting maneuver strategies to ensure network stability and minimize service disruptions. The decision to choose a backup feeder should not only consider the feeder's ability to support additional loads but also its impact on power losses and voltage quality across the network. Therefore, this research makes a significant contribution to more efficient medium voltage distribution network management, particularly in handling faults and maintenance.
Pengaruh Kontaminasi Asap Kendaraan Terhadap Tegangan Flashover Isolator Porselen Menggunakan Metode Slow Rate of Rise Test Wanda Mulyaningsih Putri; Aripin; Nurdiansyah, Rian
E-JOINT (Electronica and Electrical Journal Of Innovation Technology) Vol 5 No 2 (2024): E-JOINT, Desember 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/e-joint.v5i2.2498

Abstract

Isolator berperan penting dalam menjaga kestabilan dan keandalan sistem jaringan listrik. Pada kondisi lapangan kontaminasi polutan seperti asap kendaraan pada permukaan isolator dapat mengurangi kekuatan dielektrik dan meningkatkan resiko terjadinya flashover pada isolator, terlebih kondisi basah memperburuk kondisi ini. Karena itu, penelitian ini dilakukan untuk menganalisis pengaruh kontaminasi dan variasi massa polutan asap kendaraan terhadap tegangan flashover isolator. Isolator yang digunakan adalah isolator porselen jenis pasak, dengan polutan berupa jelaga asap kendaraan yang diambil dari knalpot sepeda motor dan variasi massa polutan yang diuji adalah 1, 2, 3, 5, 7, dan 9 g. Proses kontaminasi isolator oleh polutan menggunakan standar IEC 60815-1, dilakukan dengan cara mencampurkan polutan dan 50 ml air aquades lalu mengoleskannya pada permukaan isolator secara merata menggunakan kuas. Pengujian tegangan flashover dilakukan pada kondisi isolator basah dan kering menggunakan tegangan tinggi AC melalui metode Slow Rate of Rise Test. Isolator porselen bersih memiliki tegangan flashover 79,49 kV kondisi kering dan 58,84 kV kondisi basah, setelah dikontaminasi tegangan flashover menurun seiring dengan penambahan massa ploutan hingga mencapai 48,69 kV kondisi kering dan 28,54 kV kondisi basah pada massa polutan 9 g. Penelitian ini juga mengukur NSDD (Non-Soluble Deposit Density) untuk mengetahui tingkat deposit polutan pada isolator. Nilai NSDD meningkat seiring dengan penambahan massa polutan, mulai dari 0,6 mg/cm² untuk 1 g polutan hingga 5,53 mg/cm² untuk 9 g, yang berkontribusi pada penurunan tegangan flashover dan performa isolator porselen.
Filter Hybrid Double-Tuned dan High-Pass untuk Mitigasi Harmonisa pada Sistem HVAC Inverter Malik, Mochamad Irlan; Hamdani, Yuda Muhammad; Nurdiansyah, Rian; Faridah, Linda; Nurmela
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 6 No 2: Jurnal Electron, November 2025
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v6i2.387

Abstract

Inverter-based Heating, Ventilation, and Air Conditioning (HVAC) systems are increasingly utilized in industrial settings for their superior energy efficiency and controllability. Despite these advantages, nonlinear switching in inverters generates significant harmonic distortion, particularly at lower-order frequencies such as the 3rd and 5th, which can compromise power quality, reduce system lifespan, and lead to non-compliance with regulatory standards. This study proposes a hybrid passive filter solution—combining a Double Tuned Filter (DTF) and a High Pass Filter (HPF)—to mitigate harmonic distortion in an industrial HVAC system. Field data collected using a Power Quality Analyzer (PQA) revealed a 3rd-order Individual Harmonic Distortion of Current (IHDi) of 12.9%, far exceeding the 4.0% threshold specified in IEEE 519:2022. The hybrid filter was analytically designed and validated through MATLAB/Simulink simulation. Post-simulation results demonstrated effective mitigation of Total Harmonic Distortion (THD) to 3.45%, with the 3rd-order IHDi mitigated to 3.42%, achieving full compliance with IEEE 519:2022. Furthermore, the hybrid filter preserved voltage waveform quality and suppressed high-order harmonics without incurring additional energy losses or resonance issues. The combination of DTF and HPF offers wide-spectrum harmonic mitigation and enhanced power system stability. This solution is well-suited for high-load, scalable infrastructures aligned with Industry 4.0 requirements. The study concludes that passive hybrid filters are a reliable and cost-effective strategy for harmonic suppression, and future work should explore real-time adaptive control and hybrid active-passive configurations for enhanced dynamic performance