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All Journal Jurnal Edukasi Elektro Jurnal Informatika dan Teknik Elektro Terapan AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Medika Trada
Utami, Pertiwi Nurul
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Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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SIMULASI KOORDINASI PROTEKSI SISTEM TENAGA LISTRIK MENGGUNAKAN ETAP Utami, Pertiwi Nurul; Volta, Yonki Alexander; Fatin, Muhammad Hanif
MEDIKA TRADA : Jurnal Teknik Elektomedik Polbitrada Vol 5 No 1 (2024): MEDIKA TRADA (JTEMP) Vol 5 No 1 (2024)
Publisher : LPPM POLBITRADA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59485/jtemp.v5i1.52

Abstract

The electric power system must be very reliable, both in the aspects of generation, transmission and distribution. In this way, continuity of the electrical power supply to consumers can be guaranteed. One way that can be taken is to pay attention to the protection of the electric power system itself. This research aims to determine whether the coordination of electrical power system protection equipment is optimal or not. In this research, the method applied is simulation using the ETAP (Electric Transient Analysis Program) application. The process includes creating a power system circuit then applying several disturbances to the power system, then observing the existing protection equipment and analyzing system power data, disturbances, and electrical power protection equipment. This analysis is carried out by paying attention to the working order of the protective equipment during several disturbances and also the working time of the protective equipment. Coordination of power system protection equipment works well. In the simulation system according to the order of work, namely fuse, recloser and circuit breaker (CB). The last sequence of protective equipment that works is CB which has been set at 0.2 seconds. In each fault simulation, the first protection device to work is the fuse at 10 ms. If there is a security failure by the fuse, the recloser will work in 110ms seconds
Sosialisasi Aplikasi Mobile Untuk Sistem Antrian Pada Puskesmas Sako Kota Palembang Anugraha, Nurhajar; Aryanti, Aryanti; Wardhani, Dyah Utari Yusa; Utami, Pertiwi Nurul; Zhafarina, Imas Ning; Fatin, Muhammad Hanif; Sari, Diah Novita; Hapsari, Yulia; Harahap, Adhelia Febriasari
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 9 No 1 (2025): Amaliah Jurnal: Pengabdian kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v9i1.4545

Abstract

This Community Service Activity aims to provide knowledge about mobile applications for queuing systems that are expected to make it easier for patients who will check their health or seek treatment at the Health Center. The methods used in this activity include interview methods with the Health Center to find out the source of the problem that is the basis for this community service activity. Furthermore, a socialization method is carried out, where in this socialization activity an explanation will be given to both the Health Center and patients about the use of the application that will be designed. The results of this activity are socialization regarding the Mobile application for the patient queuing system along with socialization of the procedures for using the application. Where after the implementation of this activity is carried out, the application that will be designed will make it easier for patients and patients no longer need to sit and queue for a long time when going to the Sako Health Center for treatment.
ANALISIS FLASHOVER DAN WITHSTAND TEST ISOLATOR SILICONE RUBBER DAN ISOLATOR RESIN EPOKSI SISTEM DISTRIBUSI 20 kV KONDISI KERING DAN BASAH Taryo, Taryo; Utami, Pertiwi Nurul; Syakur, Abdul
Jurnal Informatika dan Teknik Elektro Terapan Vol. 11 No. 1 (2023)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v11i1.2874

Abstract

Kegagalan suatu isolator dapat terjadi karena bahan dielektrik isolator tembus listrik (breakdown) atas karena terjadinya lewat denyar udara pada permukaan isolator. Dalam kasus yang pertama, karakteristik listrik tidak dapat pulih seperti semula dan sebagian dari isolator mengalami kerusakan mekanis sehingga tidak dapat digunakan lagi dan harus diganti. Pada peristiwa lewat denyar, terjadi busur api yang menimbulkan pemanasan pada permukaan isolator dan menimbulkan hubung singkat fasa-ke-tanah. Jika relai proteksi bekerja, tegangan pada isolator menjadi nol, akibatnya busur api padam. Dengan demikian, isolator tidak sempat mengalami pemanasan yang lama sehingga terhindar dari kerusakan Sampel yang digunakan pada penelitian ini adalah isolator sillicone rubber(buatan pabrik) dan isolator resin epoksi 20 kV (different shed dan same shed). Pengukuran dilakukan dengan menggunakan tegangan tinggi bolak–balik frekuensi 50 Hz guna mendapatkan nilai besaran flashover dan pengujian ketahanan (withstand test) pada isolator uji. Penggunaan tegangan tinggi dimaksudkan agar terjadi tekanan elektris (kuat medan listrik) yang cukup pada permukaan isolator. Untuk isolator resin epoksi menggunakan perbandingan bahan dasar polimer resin epoksi jenis DGEBA (Diglycidyl Ether of Bisphenol – A) (40%), bahan pematang atau pengeras MPDA (Metaphenylene-diamine)(40%), Alumina (Al2O3) (10%), dan abu sekam padi (10%).Faktor lingkungan seperti kondisi kering dan basah sangat berpengaruh terhadap tegangan flashover dan Withstand Test.Tegangan flashover kondisi basah lebih kecil daripada saat kondisi kering sedangkan Pengujian Ketahanan Tegangan (Withstand Test) tidak dipengaruhi kondisi lingkungan.Pada pengujian flashover kondisi kering didapat hasil isolator silicone rubber 133,8 kV; Different Shed 123,5 kV dan Same shed 125,1 kV. Silicone Rubber memiliki kecenderungan nilai flashover lebih tinggi dibandingkan dengan isolator lainnya salah satunya di sebabkan oleh jarak rayap isolator silicone rubber lebih panjang.Pada pengujian flashover kondisi basah didapat hasil isolator silicone rubber 124,7 kV; Different Shed 106,4 kV dan Same shed 106,4 kV. Silicone Rubber memilikikecenderungan nilai flashover lebih tinggi dibandingkan dengan isolator lainnya salah satunya di sebabkan oleh jarak rayap isolator silicone rubber lebih panjang.Pada pengujian ketahanan tegangan (Withstand Test) kondisi kering dan basah memiliki hasil yang tidak jauh berbeda, dimana kondisi kering isolator Silicone Rubber empat sirip didapat hasil 45 kV, Same shed empat sirip didapat hasil 44 kV, dan different shed empat sirip didapat hasil 42 kV dan hasil pengujian kondisi basah Silicone Rubber empat sirip didapat hasil 45 kV, Same shed empat sirip didapat hasil 45 kV, dan different shed empat sirip didapat hasil 42 kV.
Prototype of Wind Power Plant Using a Laboratory-Scale Vertical Axis Savonius Turbine Wijaya, Ali Satria; Faruqi , Fiqri Al; Zhafarina , Imas Ning; Utami, Pertiwi Nurul; Wirasapta, Andicho Haryus
Jurnal Edukasi Elektro Vol. 10 No. 1 (2026): Jurnal Edukasi Elektro Volume 10, No. 1, May 2026
Publisher : DPTE FT UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jee.v10i1.96718

Abstract

This study investigates the performance of a laboratory-scale vertical-axis Savonius wind turbine prototype developed based on a simple and robust mechanical design for small-scale renewable energy applications. The prototype frame was constructed using angle steel with a cross-section of 40 × 40 mm and a thickness of 1.8 mm, forming a rectangular structure with overall dimensions of 150 cm × 150 cm and a height of 50 cm. The Savonius rotor employed a solid steel shaft with a diameter of 2.5 cm and acrylic blades measuring 100 cm in height and 40 cm in width. Performance data were collected over a six-month observation period from August 2025 to January 2026 under low to moderate wind speed conditions. The measured wind speed ranged from approximately 3.5 to 6.5 m/s, resulting in power outputs between 0.77 W and 9.44 W. The calculated power coefficient (Cp) varied from 0.18 to 0.34, indicating a typical efficiency range for drag-based Savonius turbines. The results show a consistent increase in rotor speed and electrical power output with rising wind speed, while Cp values tend to stabilize at higher wind velocities, reflecting aerodynamic performance limitations inherent to Savonius turbines. These findings demonstrate that the developed prototype exhibits stable and predictable behavior, making it suitable for laboratory experimentation, educational purposes, and preliminary assessment of small-scale wind energy systems operating in low wind speed environments.
Co-Authors Abdul Syakur Andi Yulia Muniar, Andi Yulia ANGRIAWAN, RANDY Aryanti Aryanti Dyah Utari Yusa Wardhani Faruqi , Fiqri Al Fatin, Muhammad Hanif Harahap, Adhelia Febriasari Muhajirin Nurhajar Anugraha Rani, Rahmat Sari, Diah Novita Suryadi Syamsu, Suryadi Taryo, Taryo Wijaya, Ali Satria Wirasapta , Andicho Haryus Yonki Alexander Volta Yulia Hapsari Zhafarina , Imas Ning Zhafarina, Imas Ning