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All Journal Foristek Wahana Fisika : Jurnal Fisika dan Terapannya
Reza Alfian
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Astronomy Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Physics

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ANALISIS KINERJA PMS REL 2 BAY TRAFO 6 MENGGUNAKAN THERMOVISION METHODE DI GARDU INDUK SUNYARAGI Agus Siswanto; Reza Alfian; Erfan Subyanta
Foristek Vol. 11 No. 2 (2021): Foristek
Publisher : Foristek

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54757/fs.v11i2.113

Abstract

In an effort to provide reliable and efficient electrical energy, substations have an important role in regulating the demand for electric power loads and as a center for securing electrical power system components in a certain area. Frequent disturbances become a benchmark for an electric power system whether or not it is good or not in an effort to provide reliable and efficient energy. One of the maintenance measures is temperature measurement using thermal imagers, which is commonly referred to as thermovision measurement.Thermal imager is a tool that can be used for predictive maintenance activities to monitor the condition and performance of an equipment so that the possibility of equipment failure can be minimized. In October 2020, after thermovisiting transformer bay 6 at the Sunyaragi substation, it was discovered that there was a hotspot on the T-phase separation blade, causing heating of the blade, the above conditions can result in a decrease in PMS performance, with the worst condition if left alone can result in damage to the PMS blade and can also melt when the peak load is on the transformer 6. Under these conditions, maintenance is carried out by maintaining contact resistance, insulation resistance, and grounding resistance. The results of the analysis of contact resistance after maintenance show that the equipment is in good condition and still suitable for use, with a value of 7μΩ for the R phase, 6.5μΩ for the S phase, and 6.7μΩ for the T phase.
Pemanfaatan Sensor Load Cell Dalam Pembuatan Prototipe Alat Uji Tekan Portabel Reza Alfian; Rahadi Wirawan; L. Sahrul Hudha; Nurul Qomariyah; Susi Rahayu; Marzuki Marzuki
Wahana Fisika Vol 7, No 1 (2022): June
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/wafi.v7i1.46990

Abstract

Alat uji tekan merupakan instrumen uji mekanik yang digunakan untuk menentukan batas maksimum suatu material menerima tekanan yang diberikan. Tekanan yang diberikan pada suatu material dapat mengakibatkan terjadinya deformasi pada material tersebut. Sensor load cell merupakan suatu piranti yang mengkonversi deformasi yang terjadi menjadi perubahan nilai hambatan listrik. Pada penelitian ini dilakukan pembuatan alat uji tekan portabel yang memanfaatkan sensor load cell. Alat uji tekan ini menggunakan sensor load cell, modul mikrokontroler ATmega328, motor driver, dongkrak listrik, modul ADC HX7411, dan modul LCD. Pengujian sensor load cell dilakukan dengan memberikan gaya tekan pada sensor load cell pada 3 klasifikasi skala yaitu 10 N-100 N dengan kelipatan 10 N, 100 N-1000 N dengan kelipatan 100 N, dan skala 1000 N-5000 N dengan kelipatan 1000 N. Hasil pengujian unjuk kerja sensor menunjukkan tingkat akurasi sebesar 98,7%. Sementara itu, pengujian pengukuran uji tekan suatu sampel material menunjukkan deviasi nilai 1% terhadap hasil pengukuran menggunakan alat standar UTM-TENSILON.Kata Kunci :  load cel; tekanan; akurasi; ATmega328; HX7411.
Co-Authors Agus Siswanto Erfan Subyanta Lalu Sahrul Hudha Marzuki Marzuki NURUL QOMARIYAH Susi Rahayu Wirawan, Rahadi