Desain Dan Implementasi Power Quality Meter dan Arcing Detektor untuk Asesmen Instalasi Tegangan Rendah AC dan PV Farm

Atmaja, Imania Dwi Putri Violita (2026) Desain Dan Implementasi Power Quality Meter dan Arcing Detektor untuk Asesmen Instalasi Tegangan Rendah AC dan PV Farm. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Gangguan busur api listrik (arcing) merupakan gangguan berbahaya yang dapat merusak peralatan dan memicu kebakaran, sedangkan pemantauan kualitas daya dan deteksi arcing umumnya masih dilakukan menggunakan perangkat terpisah sehingga hubungan waktu antara keduanya sulit dianalisis. Penelitian ini bertujuan merancang dan mengimplementasikan Power Quality Meter (PQM) terintegrasi dengan detektor arcing untuk asesmen instalasi tegangan rendah AC dan sistem DC berbasis fotovoltaik. Sistem menggunakan dua mikrokontroler ESP32 sebagai unit akuisisi dan pengolahan data serta unit penampil dan pencatat data. Parameter AC yang diukur meliputi tegangan, arus, daya aktif, daya reaktif, daya semu, energi, frekuensi, faktor daya, THDv, dan THDi, sedangkan parameter DC meliputi tegangan, arus, daya, dan energi. Metode Fast Fourier Transform (FFT) digunakan untuk menghitung THDv dan THDi serta mendeteksi arcing seri AC, sedangkan Discrete Wavelet Transform (DWT) digunakan untuk mendeteksi arcing paralel AC dan arcing pada sistem DC. Seluruh data disimpan secara luring pada kartu SD dengan penanda waktu dari RTC DS3231. Hasil kalibrasi menunjukkan nilai MAPE parameter AC sebesar 0,06–3,46% dan parameter DC sebesar 0,03–2,67%. Integrasi sistem menghasilkan tingkat keberhasilan penerimaan data sebesar 99,997% dengan interval pencatatan rata-rata 5,02 detik. Hasil implementasi menunjukkan bahwa arcing seri AC menyebabkan penurunan tegangan, arus, daya aktif, dan daya semu serta peningkatan distorsi harmonik. Pada sistem DC, arcing menimbulkan fluktuasi tegangan, arus, dan daya yang lebih signifikan pada kondisi arcing paralel. Sistem yang dikembangkan dapat digunakan sebagai perangkat asesmen awal untuk memantau kualitas daya dan mengidentifikasi indikasi gangguan arcing pada instalasi tegangan rendah AC dan sistem fotovoltaik.
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Electrical arcing is a hazardous fault that can damage equipment and cause fires, while power quality monitoring and arcing detection are generally performed using separate devices, making their temporal relationship difficult to analyze. This study aims to design and implement a Power Quality Meter (PQM) integrated with an arcing detector for assessing low-voltage AC installations and photovoltaic-based DC systems. The system employs two ESP32 microcontrollers as a data acquisition and processing unit and a display and data-logging unit. The measured AC parameters include voltage, current, active power, reactive power, apparent power, energy, frequency, power factor, THDv, and THDi, while the DC parameters include voltage, current, power, and energy. The Fast Fourier Transform (FFT) is used to calculate THDv and THDi and detect AC series arcing, whereas the Discrete Wavelet Transform (DWT) is applied to detect AC parallel arcing and arcing in DC systems. All data are stored offline on an SD card with timestamps provided by the DS3231 RTC. Calibration results show MAPE values of 0.06–3.46% for AC parameters and 0.03–2.67% for DC parameters. The integrated system achieves a data reception success rate of 99.997% with an average logging interval of 5.02 seconds. Implementation results indicate that AC series arcing causes reductions in voltage, current, active power, and apparent power, accompanied by increased harmonic distortion. In the DC system, arcing produces fluctuations in voltage, current, and power, with more significant changes during parallel arcing. The developed system can be used as an initial assessment device for monitoring power quality and identifying indications of arcing faults in low-voltage AC and photovoltaic systems.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Arcing, fotovoltaik, harmonisa, instalasi tegangan rendah, kualitas daya, Power Quality Meter, Arcing, harmonics, low-voltage installation, photovoltaic, power quality, Power Quality Meter.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3401 Insulation and insulating materials T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Imania Dwi Putri Violita Atmaja
Date Deposited:	24 Jul 2026 07:10
Last Modified:	24 Jul 2026 07:10
URI:	http://repository.its.ac.id/id/eprint/137166

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