Wiguna, Handi Aditya (2019) Deteksi Partial Discharge Pada Isolasi Minyak Yang Dipengaruhi Suhu Dengan Metode Very High Frequency (VHF). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Partial discharge (PD) adalah peluahan muatan listrik yang menghubungkan dua elektroda tegangan tinggi yang seharusnya tidak terhubung. Partial discharge dapat menyebabkan kegagalan isolasi jika tidak ditangani secepatnya dan lebih parahnya dapat menyebabkan penurunan kualitas peralatan hingga kerusakan pada peralatan tegangan tinggi. Partial discharge yang akan dibahas yaitu partial discharge yang muncul pada isolasi minyak yang telah dipanaskan dengan suhu tertentu. Partial discharge yang dihasilkan pada isolasi minyak akan dideteksi dengan metode very high frequency (VHF) menggunakan antena dan leakage current menggunakan high frequency current transformer. Elektroda yang digunakan adalah elektroda point to plane (jarum ke datar). Minyak isolasi dipanaskan dengan range suhu operasi transformer. Suhu yang digunakan adalah 30° C, 45° C, 60° C, 75° C, 90° C. Pembangkit yang digunakan bertipe AC dengan frekuensi sebesar 2.4 GHz. Sinyal diambil dengan menggunakan peralatan akuisisi yaitu very high frequency (VHF). Data yang diambil akan diolah untuk ditampilkan Phase Resolved Partial Discharge (PRPD). Olahan hasil akan dianalisa karakteristik pengaruh suhu pemanasan terhadap pola partial discharge. Hasil pengujian didapatkan bahwa suhu minyak isolasi mempengaruhi pola partial discharge. Suhu minyak mempengaruhi besar tegangan inception karena semakin tinggi suhu minyak, uap air yang muncul sebagai kontaminan lebih banyak yang dapat mempengaruhi besar tegangan pada saat munculnya partial discharge.
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Partial discharge is an electrical discharge that connects two high voltage electrodes that should not be connected. Partial discharge can cause insulation failure if did not handled immediately and the worse can cause a decrease in the quality of the equipment to damage to high voltage equipment. Partial discharge that will be discussed is partial discharge that appears in the oil insulation that has been heated to a certain temperature. Partial discharge generated in oil insulation will be detected by the very high frequency (VHF) method using antennas and leakage current using high frequency current transformer. The electrode used is point to plane electrode. Oil insulation is heated with a range of transformer operating temperature. The temperature is 30° C, 45° C, 60°C, 75° C, 90° C. The plants used is AC type with a frequency of 2.4 GHz. The signal is taken using acquisition equipment, namely very high frequency (VHF). The data taken will be processed to display the Phase Resolved Partial Discharge (PRPD). Processed result will be analyzed for the effect of heating temperature on the partial discharge pattern. The test result showed that the oil insulation temperature affected the partial discharge pattern. The temperature of the oil affects the inception voltage because the higher the temperature of the oil, the more water vapor that appears as a contaminant can affect the voltage at the time of the partial discharge.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSE 621.319 37 Wig d-1 2019 |
| Uncontrolled Keywords: | Partial Discharge, Phase Resolved Partial Discharge, Arus Bocor, Very High Frequency |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3401 Insulation and insulating materials T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.674 Detectors. Sensors T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.6 Antennas (Electronics) T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electromagnetic Devices |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Handi Aditya Wiguna |
| Date Deposited: | 22 Feb 2023 07:38 |
| Last Modified: | 22 Feb 2023 07:38 |
| URI: | http://repository.its.ac.id/id/eprint/63562 |
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