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Analysis of Cause of Power Distribution Network Failures Using the Fault Tree Analysis Method at PT PLN Persero ULP Kuranji Azmi, Nurul; Julsam, Julsam; Abadi, Akbar
Andalasian International Journal of Applied Science, Engineering and Technology Vol. 6 No. 1 (2026): March 2026
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/aijaset.v6i1.237

Abstract

Electricity is a fundamental necessity in modern life, making the reliability of power distribution systems critical for consistent energy delivery to consumers. PT PLN (Persero) ULP Kuranji is responsible for power distribution in its service area, but frequent disturbances still compromise service quality. This study aims to identify and analyze the root causes of these distribution network failures using the Fault Tree Analysis (FTA) method, specially at ULP Kuranji using 2024 data. Data were gathered through literature review, field observations, and interviews with the Technical Team Leader of ULP Kuranji. The research methodology involved failure identification, fault tree construction, minimum cut set determination, and FTA-based analysis to formulate corrective recommendations. The results show that disturbances are mainly caused by external factors such (vegetation, weather conditions, animals, and third-party interference), an internal issues (component and equipment failures within the Medium Voltage Network (MVN). The analysis identified five basic events as primary root causes: natural disturbances, animal or third-party interference, component failures, material or equipment faults, and installation errors. Recommended mitigation measures include routine maintenance, protective risk inspection, adopting monitoring technologies, and infrastructure/equipment upgrades.
Analysis of Slopes and Their Impact on Settlements in Landslide-Prone Areas of Balikpapan City Using Geographic Information Systems (GIS) Methods Mahardika, Hafiz Putra; Mawaddah, Najma Nur; Ningrum, Meivita Rhamadan; Azmi, Nurul
JPG (Jurnal Pendidikan Geografi) Vol 13, No 1 (2026)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jpg.v13i1.23270

Abstract

The city of Balikpapan is dominated by hilly topography, covering approximately 85% of its area, while the remaining 15% consists of flat land. These conditions greatly influence surface runoff patterns, slope stability, land-use changes, and urban development policies, particularly those related to settlement expansion and landslide risk management. This situation has encouraged communities to build settlements in hilly areas; however, development in such locations increases the potential for landslides, especially when combined with steep slopes, high rainfall, and unstable soil conditions. This study aims to map landslide vulnerability in Balikpapan City using a GIS-based weighted overlay method. In addition to mapping vulnerability, the study also assesses the level of settlement exposure within each vulnerability class and develops spatially based mitigation strategies to support disaster risk reduction. The results of this study are expected to serve as a basis for government recommendations in landslide management and mitigation.The parameters used include soil type, land cover, slope steepness, and rainfall intensity, each weighted and scored according to its influence on landslide potential. Through the weighted overlay process, a landslide vulnerability zonation map was produced. The results show that West Balikpapan, South Balikpapan, Central Balikpapan, and North Balikpapan districts have the largest areas of high vulnerability, although the assessment covers all six districts. A total of 177,174 housing units are located within landslide-vulnerable zones, with 168,989 units in the medium vulnerability class, while the remaining 8,185 units are distributed across low and high classes. This distribution indicates that exposure is largely concentrated in medium-risk zones. Mitigation recommendations include increasing public awareness, constructing retaining walls on steep slopes, establishing evacuation routes, and installing drainage systems on steep terrain.
Co-Authors Ade Kurniawan Afifah, Syifa Tsany Afriyani, Tri Akbar Abadi, Akbar Akmal Muhni Alfarizi, Hamdi Ali Karim Amalia, Tasya Amsir, Amsir Andhany, Ella Andi Kristanto Arbi, Arbi Ardiyansyah, Mae Arfan, Fahmi Ariani, Asriani Asriani Asriani Asriani, Asriani Baiq Dinna Widiyasti Bulan Kakanita Hermasari Claudia*, Cindy Dachi, Indriana Daulay, Sholihatul Hamidah Deria, Salsabila DEWI SARTIKA Dewi W, Christina Dhiah Fitrayati Didin Hikmah Perkasa Dwi Ananda, Sindy Dwi Utami Setyawati Edy Miswar, Edy Ekawati, Dessy ELA YULAELIAH Eli Irawati Elisa, Sofia Fadhilah Tia Nur, Fadhilah Tia Faisal Faisal Faisal Fajar Arianto Fajri Pratama, Muhammad Fatiha Maulida, Diva Fauziah, Siti Naila Fithri, Rahma Aulia Fitrah Maya sari H Fitria, Lailani Gamar Al Haddar Hadis Purba, Hadis Halomoan, Yosua Bintang Hapsari, Tika Harahap, Mukhriza Hasanah*, Uswatun Haura, Affiyah Helmiah, Fauriatun Heriana, Naufa Lia Zohnia Herry Wardono Hery Syahrial Hidayati, Dian Meutia Husti, Ilyas Ichsan Setiawan Illian, Didi Nurhadi Inayah , Inayah Indani, Indani Indriyani, Ananda Irwan Irwan Ismaniar Ismaniar Ismawirna Istichanah Istichanah, Istichanah Iwin, Iwin Julsam Julsam Junaidi Junaidi Karina Khadijah Khadijah Khumaira, Sarah Krishantoro, Wahyu Kurniaty, Dewi Lala, Andi Lingga Yuliana Lubis, Putri Kemala Dewi M. Yogi Riyantama Isjoni Mahardika, Hafiz Putra Mahyidin, Razali Marvita, Yurda Marwan Marwan Masrurah, Zakia Matondang, Khairani Alawiyah Maureen, Irena Y. Mawaddah, Najma Nur Mifthahul Jannah Miska, Layna Muh. Rizal Muhammad Syukri Mujiburrahman Mujiburrahman Muntaza, Kaiesa Raihatul Mursal Mursal Mutia Asmara, Devi Sunita Nainggolan, Icha Riska Gloria Nanda*, Meutia Nasrawati Basir Nasution, Armin Rahmansyah Nasution, Nurhabibah Ningrum, Mei Vita Romadon Ningrum, Meivita Rhamadan Nita Novebrini, Sintya Nur Ramadani, Fikria Nuraiza, Nuraiza Nurfadilah, Layyinatul Nurhasanah Nurhasanah Nurhayadi Nurliza, Eli Nurul Amin, Nusaindah Panggabean, Lora Theresia Putra Thoip Nasution Putra, Dedi Fazriansyah Putri, Amelia Putri, Cut Namira Putri, Rizkya Rahmadi Rahmadi Rahmasari, Rahmasari Rambe, Khairul Fadli Rangkuti, Nazla Syafitri Rihadiman Syafutra, Muris Rini Safitri Risnawati Risnawati Rully Hidayatullah Sabrian Tri Anda Salamah, Ummi Salsabila, Rifa Salma Sanapiah Saputri, Dinda Sari, Sinta Affriliana Saripah, Iis Sarkowi, M Sembiring, Margaretha Septian, Yan Silvia Agustin Siregar, Jihan Fadiyah Fitri Siregar, Zulkifli Musannip Efendi SITI NAILA FAUZIA, SITI NAILA Siti Syarah, Eneng Solehah, Nunung Stevany Hanalyna Dethan Suci Rahmawati, Suci Sudarmin Sudarmin Syaenri, Nizella Syahrani, Cahya Syamsiar, Syamsiar W, Wahdaniar Wardani, Vera Wira Hendri Wirahmi, Nori Wuri Purnamasari Yulizar, Meri Yuniawaty, Yunni Yunni Yuniawaty Zahara, Amelia Zahrah, Zahrah Zahrotus Sa'idah Zainuddin Muchtar Zamsiswaya, Zamsiswaya Zul Fadhli, Zul Fadhli Zul Fadhli Zulianto, Zugit Zulkarnain Jalil