Fidya, Eka Prahesti (2020) Deteksi Gangguan Hubung Singkat Belitan Stator Motor Induksi 3 Fasa Dengan Menggunakan Sensor Eksternal Fluks. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada penelitian ini telah dilakukan deteksi gangguan hubung singkat pada belitan stator motor induksi menggunakan analisis pengukuran fluks bocor. Sinyal fluks bocor yang keluar pada badan motor akan dideteksi oleh sensor eksternal fluks, yang terdiri dari probe sensor koil dan Gauss-meter. Pengukuran fluks bocor dilakukan pada dua kondisi, yaitu kondisi normal dan kondisi saat mengalami gangguan hubung singkat. Pengambilan data dilakukan ketika sistem berada dalam kondisi tunak (steady state). Rekontruksi gangguan hubung singkat dibuat dengan memodifikasi salah satu slot belitan agar dapat dikeluarkan dari badan motor. Pada pengujian, terdapat tiga variasi penggabungan belitan (tapping) gangguan hubung singkat dalam satu fasa belitan (interturn) yaitu 2 belitan, 4 belitan, dan 8 belitan. Selain itu dilakukan variasi pembebanan disetiap kasus untuk mengetahui faktor pembebanan pada keberhasilan deteksi gangguan. Data dari hasil pengujian diolah menggunakan metode Fast Fourier Transform (FFT) untuk mengetahui nilai amplitudo harmonisa pada beberapa frekuensi. Selain sinyal fluks bocor, peneliti menambahkan analisis deteksi gangguan melalui arus stator untuk digunakan sebagai pembanding hasil eksperimen. Hasil dari percobaan menunjukkan bahwa pada pembebanan 0%, presentase keberhasilan deteksi gangguan menggunakan sinyal fluks bocor sebesar 82,67% dan untuk pembebanan beban penuh presentase Keberhasilan deteksi menurun menjadi 63,33%. Dari hasil tersebut dapat dikatakan bahwa metode deteksi berdasarkan sinyal fluks bocor berhasil mendeteksi gangguan. Sedangkan pada sinyal arus stator presentase keberhasilan deteksi ganguan tanpa beban sebesar 42,67% dan pada pembebanan 100% presentase keberhasilan deteksi gangguan sebesar 63,67%.
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In this research, the detection of short circuit disturbance on the stator winding of an induction motor has been carried out using analysis of leakage flux measurements. Leaked flux signals coming out of the motor frame will be detected by an external flux sensor, which consists of a coil sensor probe and Gauss meter. Measurement of leakage flux is done in two conditions, normal conditions and when experiencing short circuit interference. Data retrieval is done when the system is in a steady state. The short circuit fault reconstruction is made by modifying one of the winding slots so that it can be removed from the motor body. In testing, there are three variations of the merging of the windings (tapping) short circuit interference in one phase of the windings (inter-turn), namely 2 turns, 4 turns, and 8 turns. In addition, variations in loading were carried out in each case to determine the loading factor on the success of the detection of interference. Data from the test results are processed using the Fast Fourier Transform (FFT) method to determine the value of harmonic amplitude at several frequencies. In addition to the leakage flux signal, the researchers added an analysis of the measurement of the stator current to be used as a comparison of experimental results. The results of the experiment show that at 0% loading, the percentage of successful detection of disturbances using a leakage flux signal was 82.67% and for a full load, the percentage of detection success decreased to 63.33%. From these results, it can be said that the detection method based on the leaky flux signal successfully detects interference. Whereas on the stator current signal the percentage of successful detection of disturbances without load is 42.67% and at 100% loading the percentage of interference detection success is 63.67%.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTE 621.313 2 Pra d-1 |
| Uncontrolled Keywords: | Arus stator, fluks bocor, FFT, gangguan hubung singkat, motor induksi, dan sensor koil. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2785 Electric motors, Induction. |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | Fidya Eka Prahesti |
| Date Deposited: | 14 Mar 2025 07:19 |
| Last Modified: | 14 Mar 2025 07:19 |
| URI: | http://repository.its.ac.id/id/eprint/74222 |
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