Rancang Bangun Alat Pengendali Suhu dan Kelembapan Otomatis pada Current Trafo PLTD Gili Ketapang

Irfan, Mochammad (2026) Rancang Bangun Alat Pengendali Suhu dan Kelembapan Otomatis pada Current Trafo PLTD Gili Ketapang. Undergraduate thesis, Universitas Muhammadiyah Surabaya.

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Abstract

Current Trafo (CT) merupakan salah satu komponen penting dalam sistem kelistrikan Pembangkit Listrik Tenaga Diesel (PLTD) yang berfungsi sebagai alat ukur dan proteksi. Keandalan current trafo sangat dipengaruhi oleh kondisi lingkungan, khususnya suhu dan kelembapan. Pada PLTD Gili Ketapang yang berada di wilayah pesisir, tingkat kelembapan udara yang tinggi dan suhu lingkungan yang fluktuatif berpotensi menimbulkan overheating, kondensasi, korosi, serta penurunan kualitas isolasi pada current trafo. Kondisi tersebut dapat menurunkan keandalan dan umur pakai peralatan listrik. Penelitian ini bertujuan untuk merancang dan membangun alat pengendali suhu dan kelembapan otomatis pada current trafo PLTD Gili Ketapang serta menguji kinerja sistem dalam menjaga kondisi lingkungan tetap berada pada batas aman. Metode penelitian yang digunakan adalah metode experimen dengan merancang alat pengendali berbasis mikrokontroler Arduino Uno, sensor DHT11/DHT22, relay, kipas, lampu/heater, dan LCD. Pengujian dilakukan untuk mengetahui kemampuan sistem dalam memantau suhu dan kelembapan secara real-time serta mengendalikan aktuator secara otomatis berdasarkan nilai set point yang telah ditentukan. Hasil penelitian menunjukkan bahwa alat mampu bekerja dengan baik dalam menjaga suhu dan kelembapan current trafo. Sistem berhasil mempertahankan suhu pada rentang 26–32°C dan kelembapan pada rentang 52– 68% RH dengan respons yang cepat dan stabil. Selain itu, sistem juga mampu mengurangi frekuensi switching relay yang berlebihan sehingga kinerja pengendalian menjadi lebih efisien. Dengan demikian, alat pengendali suhu dan kelembapan otomatis yang dirancang dinyatakan efektif dalam menjaga kondisi lingkungan current trafo, sehingga dapat meningkatkan keandalan, keamanan operasional, dan umur pakai peralatan listrik di PLTD Gili Ketapang.

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Current Transformer (CT) is one of the important components in the electrical system of Diesel Power Plant (PLTD) which functions as a measuring and protection tool. The reliability of the current transformer is greatly influenced by environmental conditions, especially temperature and humidity. In Gili Ketapang PLTD which is located in a coastal area, high levels of air humidity and fluctuating environmental temperatures have the potential to cause overheating, condensation, corrosion, and decreased insulation quality in the current transformer. These conditions can reduce the reliability and service life of electrical equipment. This study aims to design and build an automatic temperature and humidity controller on the Gili Ketapang PLTD current transformer and test the system's performance in maintaining environmental conditions within safe limits. The research method used is an experimental method by designing a controller based on an Arduino Uno microcontroller, DHT11/DHT22 sensors, relays, fans, lights/heaters, and LCDs. Testing is carried out to determine the system's ability to monitor temperature and humidity in real-time and control actuators automatically based on predetermined set point values. The results of the study showed that the device performed well in maintaining the temperature and humidity of the current transformer. The system successfully maintained the temperature within the range of 26–32°C and the humidity within the range of 52–68% RH with a fast and stable response. Furthermore, the system was able to reduce excessive relay switching frequency, resulting in more efficient control performance. Therefore, the designed automatic temperature and humidity controller was effective in maintaining the environmental conditions of the current transformer, thereby improving the reliability, operational safety, and service life of electrical equipment at the Gili Ketapang Diesel Power Plant (PLTD).

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: current trafo, suhu, kelembapan, experimen, Arduino Uno, PLTD Gili Ketapang
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: 08. Fakultas Teknik > Teknik Mesin
Depositing User: MOCHAMMAD IRFAN
Date Deposited: 06 Jul 2026 03:32
Last Modified: 06 Jul 2026 03:32
URI: https://repository.um-surabaya.ac.id/id/eprint/12704

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