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All Journal PENDIPA Journal of Science Education Jurnal Teknik Sipil dan Teknologi Konstruksi
Aini, Nur Syahidah
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Chemistry Civil Engineering, Building, Construction & Architecture Education Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Transportation

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Perancangan Filter Pasif Pada Gardu Traksi di Stasiun Citayam Guna Mengurangi Efek Distorsi Harmonisa Putri Jori, Rahmatika Dwi; Sari, Nurwanda; Desliana, Lulu Syahira; Maulidina, Siti; Mardhotillah, Nur Anisa; Arif, Muhammad Rizki; Aini, Nur Syahidah
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.742-751

Abstract

Electric Rail Trains (KRL) have become the most frequently used transportation mode for daily activities in the community. One of the existing problems within the operation system of Electric Rail Trains (KRL) lies in the current rectification process. During this rectification process, an effect occurs that can cause disturbances in the KRL's electrical system. This resulting effect is the harmonic effect. This study aims to address the problem of power quality degradation in the Electric Rail Train (KRL) at the Citayam Station Traction Substation, which is caused by this harmonic effect. The harmonic effect arises from the process of rectifying alternating current (AC) into direct current (DC) using a silicon rectifier, which can lead to voltage drop, speed reduction, or even the operational stoppage of the KRL.The research method used is quantitative descriptive. The study did not conduct direct measurements but instead used averaged assumption data from three related journals as primary data. The data analyzed were the values of Total Harmonic Distortion (THD) for both current and voltage, particularly focusing on the 5th, 7th, and 11th harmonic orders, which were identified as the highest contributors to the harmonic distortion. To mitigate the harmonics, this study designed a single-tuned passive filter using the ETAP (Electric Transient Analysis Program) software. The design aims to suppress the harmonic distortion, thereby improving the electrical power quality, maintaining the reliability of the traction substation, and optimizing KRL operations. The single-tuned passive filter designed in this research was capable of suppressing harmonics by up to 0.009%.
ANALISIS DAYA DUKUNG PONDASI BORED PILE PROYEK PEMBANGUNAN RSNTT18-01 PASAR JUM’AT JAKARTA SELATAN Arif, Muhammad Rizki; Aini, Nur Syahidah; Bustam, Hadyan Arifin; Sari, Nurwanda
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 11, No 2 (2025): JURNAL TEKNIK SIPIL DAN TEKNOLOGI KONSTRUKSI
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v11i2.13139

Abstract

As urban populations grow, additional housing is urgently needed. The development of housing infrastructure is therefore crucial to supporting the community's daily activities. The Pasar Jumat High-Rise Apartment Development Project (RSNTT18-01) is located on Jalan Sapta Taruna Raya in Lebak Bulus, South Jakarta. One area worked on is the foundation. A foundation is defined as a construction at the base of a structure or building that transfers the load from the upper part of the structure or building to the soil layer below. Every foundation must be able to support loads up to a predetermined safety limit. This study aims to determine the bearing capacity of the piles that can withstand these loads. The RSNTT18-01 project uses a bored pile foundation. The bearing capacity of a bored pile foundation is calculated using bored  Penetration Test (SPT) data. According to the research, the bearing capacity of a bored pile at a depth of 12 meters is 3,8× N, with a structural load (Pu) equal to 6.5647 x 109 N, then one pile cap requires 18 piles.
Co-Authors Arif, Muhammad Rizki Bustam, Hadyan Arifin Desliana, Lulu Syahira Mardhotillah, Nur Anisa Maulidina, Siti Putri Jori, Rahmatika Dwi Sari, Nurwanda