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All Journal AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Medika Trada Jurnal Ragam Pengabdian
Pertiwi Nurul Utami
Politeknik Negeri Sriwijaya
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences Other

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SIMULASI KOORDINASI PROTEKSI SISTEM TENAGA LISTRIK MENGGUNAKAN ETAP Pertiwi Nurul Utami; Yonki Alexander Volta; Muhammad Hanif Fatin
MEDIKA TRADA 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 Nurhajar Anugraha; Aryanti Aryanti; Dyah Utari Yusa Wardhani; Pertiwi Nurul Utami; Imas Ning Zhafarina; Muhammad Hanif Fatin; Diah Novita Sari; Yulia Hapsari; Adhelia Febriasari Harahap
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 Kondisi Isolator Outdoor Terpolusi Debu Urea dengan Metode PRPD dan Time Frequency Rindo Gustian; Anton Firmansyah; Pertiwi Nurul Utami
Jurnal Ragam Pengabdian Vol. 3 No. 2 (2026): Mei-Agustus, Sustainable Development Goals (SDGs): Multidisciplinary Perspectiv
Publisher : Lembaga Teewan Journal Solutions

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62710/naztsh02

Abstract

This study aims to analyze the characteristics of partial discharge (PD) on a 13.8 kV Outdoor Station Post Insulator exposed to urea dust contamination at PT X Palembang. Urea dust deposited on the insulator surface increases surface conductivity and triggers PD activity that may lead to insulation degradation. Measurements were conducted using a Megger PD Scan device with a  ultrasonic sensor, then processed in MATLAB to generate Phase Resolved Partial Discharge (PRPD) patterns and Time Frequency Partial Discharge (TFPD) analysis using STFT, FFT, and CWT methods. Results showed  ultrasonic values of -5 dB to 4 dB, with the highest PD activity detected at Reactor P4. The PRPD pattern displayed symmetric pulse distribution across both half-cycles of the AC waveform at low intensity, indicating surface discharge due to surface contamination. TFPD analysis revealed a dominant frequency of 24.41 kHz. Overall, the insulation condition remains good and safe for operation, confirming that the combined PRPD and TFPD methods are effective for comprehensive insulator condition monitoring.
Co-Authors Adhelia Febriasari Harahap Aryanti Aryanti Diah Novita Sari Dyah Utari Yusa Wardhani Firmansyah, Anton Imas Ning Zhafarina Muhammad Hanif Fatin Nurhajar Anugraha Rindo Gustian Yonki Alexander Volta Yulia Hapsari