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Otomasi Proses Pengaturan Kualitas pH dan Kekeruhan Air untuk Water Cooling Furnace Fachrur Razy Rahman; Muhammad ridwan septiawan; Amiruddin; Tambi; Wa Ode Zulkaida
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol. 7 No. 4 (2022): Jurnal Fokus Elektroda Vol 7 No 4 2022
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1375.608 KB) | DOI: 10.33772/jfe.v7i4.37

Abstract

Abstract  — The use of clean water according to standards to cool the furnace at the Ferronickel Department of PT. Indonesian Tsingshan Stainless Steel (PT. ITSS) is a very important thing to be applied. This is due to one of the causes of scale and corrosion, including the turbidity and pH values ​​of the water that do not match the standard of clean water. This study uses several main components for automation which are controlled using a Siemens S7-300 PLC as a master control, and an Arduino microcontroller which functions to collect data from the Turbidity sensor readings (water turbidity), and the pH sensor. This PLC controls the input components, namely the start button, stop button and limit switch button as well as the output components, namely the AC solenoid valve and the stirrer motor. The results obtained vary based on the turbidity value of the water before processing. The results of the data obtained when the water has been processed are turbidity < 25 NTU and pH 6.5 - 8.5. This is in accordance with the data used by the industry, especially PT. ITSS. Keyword — water, standard, PLC, Microcontroller, Sensor, Turbidity, pH.   Abstrak  —  Penggunaan air bersih yang sesuai standar untuk mendinginkan furnace pada Departemen Ferronickel PT. Indonesian Tsingshan Stainless Steel (PT. ITSS) menjadi suatu hal yang sangat penting untuk diaplikasikan. Hal ini disebabkan salah satu penyebab kerak dan korosi diantaranya adalah nilai kekeruhan dan pH air yang tidak sesuai standar air bersih. Penelitian ini menggunakan beberapa komponen utama untuk otomasi yang dikendalikan menggunakan PLC Siemens S7-300 sebagai master control, dan mikrokontroler arduino yang berfungsi untuk mengumpulkan data hasil pembacaan sensor Turbidity (kekeruhan air), dan sensor pH. PLC ini mengendalikan komponen input yaitu start button, stop button dan limit switch button serta komponen output yaitu solenoid valve ac dan motor pengaduk.  Adapun hasil yang diperoleh bervariasi berdasarkan nilai kekeruhan air sebelum diproses. Hasil data yang didapatkan ketika air telah diproses yaitu kekeruhannya < 25 NTU dan pHnya 6,5 – 8,5. Hal ini sesuai dengan data yang digunakan industri terutama PT. ITSS.        
Mekanisme Respon Arus Bocor Isolator Luar Ruangan Di Bawah Pengaruh Iklim Tropis Tambi Tambi; Wa Ode Zulkaida; Muh. Nadzirin Anshari Nur; Fachrur Razy Rahman
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol. 8 No. 2 (2023): Jurnal Fokus Elektroda Vol 8 No 2 2023
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Halu Oleo

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Abstract

It is important to know the leakage current response mechanism in outdoor insulators when it rains after the dry season to predict the risk of flashover exposed to environmental pollution in aging insulators, so that it can be used as initial information by network maintenance operators to take action in the field. The main objective of this paper is to determine the effect of accumulated pollution and wetting on insulator surfaces on leakage currents at the beginning of the rainy season after the dry season based on real-time monitoring. Monitoring is carried out on polymer silicone rubber-SIR insulators and porcelain insulators installed on transmission towers or on distribution channels on days with drizzling rain and without rain on aging insulators. Based on the leakage current curve and statistical analysis results, drizzling rain during the day and night does not significantly affect the increase in leakage current in the polymer insulator, except when the temperature is above 35 ℃, where the leakage current varies slightly over a wide range.
Effect of Tropical Environmental Pengaruh Iklim Lingkungan Tropis Pada Isolator Tegangan Tinggi Tambi Tambi; Achmad Nur Aliansyah Ali; Agustinus lolok Agus
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol. 9 No. 1 (2024): Jurnal Fokus Elektroda Vol 9 No 1 2024
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Halu Oleo

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Abstract

The purpose of this study is to determine the relationship between tropical environmental climate and leakage current in high voltage insulators. This study describes the effect of tropical climate on outdoor insulators by considering the influence of natural tropical climate, humadity, temperature, ultraviolet rays, and rainfall in real time. leakage current data and environmental climate are obtained from monitoring for 2 years using a microcontroller. The test samples used are silicone rubber types of line post and suspension, and porcelain insulators installed in the 20kv distribution network where this test illustration can represent real conditions in the field. this leakage current test refers to the iec 60060 standard with a real-time leakage current monitoring system model and tropical climate conditions. The test results conducted when without rain show that temperature affects the leakage current flowing on the surface of the insulator because it has a significant value of 0.017 (p < 0.05), as well as uv ultra violet light also affects the leakage current because of a significant value of 0.037 (p < 0.05), but humidity partially does not affect the value of leakage current on the surface of the insulator because of its significant value of 0.721 (p>0.05), while when there is rain, the effect of rainfall on leakage current is 55.7%. so partially only rainfall