Karakterisasi Partial Discharge Akibat Kombinasi Cacat Dan Kontaminan Pada Sambungan Kabel Tegangan Menengah 12/20 kV

Sasmito, Satria Atmo (2026) Karakterisasi Partial Discharge Akibat Kombinasi Cacat Dan Kontaminan Pada Sambungan Kabel Tegangan Menengah 12/20 kV. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sambungan kabel tegangan menengah rentan mengalami partial discharge akibat cacat mekanis maupun kontaminasi partikel konduktif. Penelitian ini bertujuan mengkarakterisasi partial discharge pada sambungan kabel XLPE (Cross-linked Polyethylene) 12/20 kV dengan kombinasi cacat sayatan, tonjolan, dan kontaminan aluminium. Pengujian meliputi tahanan isolasi DC untuk memperoleh nilai Polarization Index (PI) dan Dielectric Absorption Ratio (DAR), serta pengujian partial discharge untuk menentukan Partial Discharge Inception Voltage (PDIV), pola Phase Resolved Partial Discharge (PRPD), distribusi fase, distribusi charge, dan timestamp. Hasil pengujian tahanan isolasi pada sambungan tanpa cacat menunjukkan nilai DAR sebesar 1,37 dan PI sebesar 1,80 sehingga layak digunakan sebagai baseline pengujian. Nilai PDIV rata-rata tertinggi diperoleh pada sambungan tanpa cacat sebesar 9,41 kV, sedangkan kombinasi tonjolan dan kontaminan aluminium, sayatan dan tonjolan, serta sayatan dan kontaminan aluminium masing-masing menghasilkan PDIV sebesar 6,37 kV, 5,37 kV, dan 3,07 kV. Hasil ini menunjukkan bahwa kombinasi sayatan dan kontaminan aluminium paling kritis terhadap inisiasi partial discharge. Analisis PRPD, distribusi fase, distribusi charge, dan timestamp menunjukkan bahwa setiap kombinasi cacat menghasilkan karakteristik partial discharge yang berbeda. Kombinasi sayatan dan tonjolan menunjukkan perkembangan aktivitas partial discharge paling kuat saat tegangan dinaikkan, sedangkan kombinasi tonjolan dan kontaminan aluminium menunjukkan pola yang relatif stabil. Hasil penelitian menunjukkan bahwa kombinasi cacat mekanis dan kontaminan konduktif dapat menurunkan kemampuan dielektrik sambungan kabel XLPE serta meningkatkan risiko terjadinya partial discharge.
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Medium-voltage cable joints are susceptible to partial discharge due to mechanical defects and conductive particle contamination. This study aims to characterize partial discharge in 12/20 kV XLPE (Cross-linked Polyethylene) cable joints with combined incision defects, protrusion defects, and aluminium contaminants. The tests include DC insulation resistance measurement to obtain the Polarization Index (PI) and Dielectric Absorption Ratio (DAR), as well as partial discharge testing to determine the Partial Discharge Inception Voltage (PDIV), Phase Resolved Partial Discharge (PRPD) patterns, phase distribution, charge distribution, and timestamp. The insulation resistance test results on the defect-free joint show a DAR value of 1.37 and a PI value of 1.80, indicating that the joint is suitable as a testing baseline. The highest average PDIV was obtained from the defect-free joint at 9.41 kV, while the combinations of protrusion and aluminium contaminant, incision and protrusion, and incision and aluminium contaminant produced PDIV values of 6.37 kV, 5.37 kV, and 3.07 kV, respectively. These results indicate that the combination of incision and aluminium contaminant is the most critical condition for partial discharge initiation. The analysis of PRPD, phase distribution, charge distribution, and timestamp shows that each defect combination produces different partial discharge characteristics. The combination of incision and protrusion shows the strongest development of partial discharge activity as the voltage increases, while the combination of protrusion and aluminium contaminant shows a relatively stable pattern. The results demonstrate that combined mechanical defects and conductive contaminants can reduce the dielectric capability of XLPE (Cross-linked Polyethylene) cable joints and increase the risk of partial discharge occurrence.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	cacat sayatan, cacat tonjolan, charge, partial discharge, kontaminan aluminium PDIV, PRPD, sambungan kabel XLPE. aluminium contaminant, charge, partial discharge, PDIV, PRPD, XLPE cable joint, incision defect, protrusion defect.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3401 Insulation and insulating materials
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering
Depositing User:	Satria Atmo Sasmito
Date Deposited:	29 Jul 2026 07:34
Last Modified:	29 Jul 2026 07:34
URI:	http://repository.its.ac.id/id/eprint/139697

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