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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro JPTE: Jurnal Pendidikan Teknik Elektro
Suhendar Suhendar
Pendidikan Vokasional Teknik Elektro, Universitas Sultan Ageng Tirtayasa
Education Electrical & Electronics Engineering Other

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Motor Listrik 3 Fasa Sebagai Penggerak Mesin Cooling Fan di PT. Polychem Indonesia Tbk. Kalika Khaldan Nurshofa; Suhendar Suhendar
Jurnal Pendidikan Teknik Elektro Vol 7 No 1 (2026): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v7i1.682

Abstract

The chemical industry's production process generates significant heat, requiring a cooling system to maintain equipment stability. One component of the cooling system is the cooling fan in the cooling tower, which is driven by a three-phase induction motor. This study aims to evaluate the operational condition of the three-phase induction motor as the cooling fan drive at PT. Polycham Indonesia Tbk., focuses on the parameters of voltage, current, and bearing temperature. The research methods used were direct field observation, temperature measurements with infrared devices, current measurements with clamp meters, and interviews with experienced technicians. The measurement results show that the motor voltage is in the range of 387-396 V, which is relatively stable and still within normal limits. The motor current measurement also shows normal conditions because it does not exceed the limit value (In). The temperature of the front, middle, and rear bearings is in the range of 33-44°C, which is still far from the 75°C limit, indicating that the cooling system is working properly. Based on the analysis results, preventive maintenance recommendations are needed in the form of periodic checks on the cooling system, bearing lubrication, and monitoring of current and voltage to prevent further damage. This study emphasizes the importance of implementing sensor-based motor condition monitoring to maintain the reliability of cooling tower operations and ensure the smooth running of production processes in the chemical industry.
PROTOTYPE INSTALASI PENGOLAHAN AIR (IPA) MONITORING BERBASIS INTERNET OF THINGS (IOT) DI DESA PONTANG LEGON Feri Febrian Syah; Didik Aribowo; Suhendar Suhendar
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 28, No 2 April (2026): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.28.2.104-114

Abstract

Penelitian ini bertujuan untuk merancang dan mengimplementasikan prototype Instalasi Pengolahan Air (IPA) monitoring berbasis Internet of Things (IoT) guna meningkatkan kualitas air payau di Desa Pontang Legon, Kabupaten Serang. Sistem yang dikembangkan mengintegrasikan proses elektrokoagulasi dengan filtrasi berlapis yang terdiri atas sediment filter, cartridge magnesium (Mg) filter, cation resin filter, dan chlorine taste odor filter. Sistem monitoring menggunakan mikrokontroler ESP32 yang terhubung dengan sensor suhu DS18B20, sensor pH PH-4502C, dan sensor Total Dissolved Solids (TDS) untuk pemantauan kualitas air secara real-time. Data ditampilkan melalui LCD serta dikirim ke platform ThingSpeak dan ThingView. Metode penelitian menggunakan Research and Development (R&D) dengan model Plomp. Hasil pengujian menunjukkan kondisi optimal pada tegangan 12 V selama 120 menit, menghasilkan peningkatan pH sebesar 128,15% dan penurunan TDS sebesar 11,51%, dengan suhu air stabil pada rentang 27–31 °C. Sistem ini berpotensi diterapkan sebagai solusi pengolahan air bersih skala desa di wilayah pesisir.  
Co-Authors Didik Aribowo Feri Febrian Syah Kalika Khaldan Nurshofa