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All Journal PROtek : Jurnal Ilmiah Teknik Elektro Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Jurnal Teknik Elektro dan Komputasi (ELKOM) Journal of Telecommunication, Electronics and Control Engineering (JTECE) Archive: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Bangsa Ulil Albab SNTE
Setiawan, Hery Teguh
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Performance Evaluation of Overcurrent Relay Coordination on 20-kV Busbar and Feeders Rizkianto, Ageng; Trihasto, Agung; Pravitasari, Deria; Setiawan, Hery Teguh
Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Vol 8, No 1 (2026): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v8i1.3484

Abstract

The coordination of Overcurrent Relays (OCR) in power systems is crucial to ensure selectivity and reliability. Mis-coordination between OCRs on the 20-kV busbar and feeders can significantly reduce system performance, often due to improper determination of pick-up values and Time Multiplier Setting (TMS). Previous studies mostly focused on protection coordination for a single feeder and relied solely on simulation. This study evaluates OCR coordination on the 20-kV busbar and five feeders connected to the Unit I transformer at Secang Substation by combining manual analysis and Electrical Transient Analyzer Program (ETAP) simulations, validated against IEEE Std 242-2001. This integrated approach provides more reliable insights than earlier works limited to single-feeder coordination or software-only methods. Evaluation was conducted through short-circuit current analysis and Time Current Characteristic (TCC) curves, yielding pick-up and TMS values that produce Coordination Time Intervals (CTI) in compliance with IEEE Std 242-2001. Results indicate that the busbar OCR achieved a pick-up of 0.566 and a TMS of 0.236. For the feeders, SCG 10 achieved 0.27 and 0.173; SCG 03 yielded 0.5025 and 0.147; SCG 05 produced 0.441 and 0.153; SCG 07 yielded 0.35 and 0.165; and SCG 08 achieved 0.5535 and 0.137. Applying these settings produced CTI values exceeding the minimum requirement of 0.3 seconds. This evaluation demonstrates that coordinated OCR settings can improve reliability in 20-kV distribution systems and reduce the risk of widespread outages due to protection failures.
Implementasi Internet of Things Untuk Pengaturan Penyiraman Tanaman Melon di Latansa Garden Fatkhurrozi, Bagus; Setiawan, Hery Teguh; Iswanaji, Chaidir; Said, Ramadhan Egi Dimas; Kholik, Wahyu Abdi
Archive: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2026): Juni 2026
Publisher : Asosiasi Pengelola Publikasi Ilmiah Perguruan Tinggi PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55506/arch.v5i2.271

Abstract

Latar Belakang: Budidaya melon di Latansa Garden menghadapi tantangan dalam manajemen irigasi konvensional, yang sering menyebabkan inefisiensi air dan fluktuasi kualitas hasil panen karena ketidakakuratan penyiraman. Tujuan: Tujuan dari kegiatan pengabdian kepada masyarakat adalah mengimplementasikan sistem penyiraman otomatis berbasis IoT yang dapat memonitor kelembaban udara secara real-time. Metode: Kegiatan dilaksanakan dalam empat tahapan sistematis selama 6 bulan dengan kegiatan: persiapan, implementasi dan instalasi, pendampingan dan pelatihan, serta evaluasi dan pelaporan. Hasil: Sistem penyiraman otomatis berbasis sensor kelembaban udara dan mikrokontroler telah berhasil dikembangkan dan dipasang yang terintegrasi dengan aplikasi Blynk IoT. Sistem ini mampu mendeteksi tingkat kelembaban tanah dan mengaktifkan pompa air secara otomatis sesuai kebutuhan tanaman.  Kesimpulan: Penerapan sistem IoT mampu menghemat penggunaan air hingga 25–30% dibandingkan metode penyiraman manual. Selain itu, waktu dan tenaga kerja petani menjadi lebih efisien karena tidak perlu melakukan penyiraman secara rutin.
Optimization of Thyristor Controlled Series Capacitor (TCSC) Placement Using the League Championship Algorithm (LCA) Algorithm Fatkhurrozi, Bagus; Setiawan, Hery Teguh; Abdillah, Mokhammad Nurkholis
Journal of Telecommunication Electronics and Control Engineering (JTECE) Vol 8 No 1 (2026): Journal of Telecommunication, Electronics, and Control Engineering (JTECE) - In P
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/jtece.v8i1.1839

Abstract

The increasing need for electrical energy in Indonesia causes the operational transmission network to experience stress to the limit of permissible stability. Changing the transmission line configuration can be used as a solution to this problem. Changes in transmission line configuration cause voltage stability problems on transmission lines. The main factors that cause voltage stability problems are: limits on generator reactive power, load characteristics, and characteristics of compensators installed on transmission lines. Increasing the voltage profile on transmission lines can be done by adding a Flexible Alternating Current Transmission System (FACTS) device. Determining the location and capacity of FACTS is a very important thing to take into account considering the relatively expensive investment costs for this equipment. TCSC is one of the simpler FACTS devices, and can be controlled easily compared to other FACTS equipment. The implementation of the League Championship Algorithm (LCA) algorithm in determining the optimal location for placing FACTS devices has been able to reduce power losses. Loading is carried out under normal conditions, loads of 125%, 140% and 150%. Several loading conditions on the IEEE 14 BUS system have shown voltage stability in conditions after FACTS installation.
Co-Authors Abdillah, Mokhammad Nurkholis Adipradana, Arrizka Asyriati Agung Trihasto Aji Setiawan Al Muis, Sobri Khausan Arofah, Feni Nur Bagus Fatkhurrozi Chaidir Iswanaji Ibrahim Nawawi Kholik, Wahyu Abdi Pravitasari, Deria Rizkianto, Ageng Said, Ramadhan Egi Dimas Wicaksono, Mahasadaru Widodo, Teguh Rahayu Wijaya, Bima Yudha