Karakteristik Arus Bocor Pada Lembar Isolator Polimer Akibat Pengaruh Jenis Kontaminan

Septianto, Bagus (2023) Karakteristik Arus Bocor Pada Lembar Isolator Polimer Akibat Pengaruh Jenis Kontaminan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada studi ini dipelajari karakteristik arus bocor pada lembar isolator polimer akibat kontaminan. Variasi kontaminan yang digunakan adalah kontaminan garam, fly ash, dan alga yang sesuai dengan standar IEC 60815. Untuk kontaminan alga akan dilakukan pengkondisian selama tiga bulan. Pengujian dilakukan menggunakan tegangan tinggi AC yang bervariasi. Pengujian dilakukan mengamati karakteristik arus bocor lembar isolator polimer akibat kontaminan menggunakan osiloskop dengan dibantu oleh circuit pendeteksi PD. Data hasil dari osiloskop akan diolah menjadi data PRPD. Data karakteristik arus bocor hasil pengolahan metode PRPD digambar dengan persebaran pulsa PD. Pengukuran dilakukan menggunakan rangkaian HFCT dan HPF. Variasi yang dilakukan adalah nilai ESDD, NSDD, dan tegangan. Hasil pengujian bahwa kontaminan memberikan dampak yang signifikan terhadap karakteristik arus bocor. Pengujian arus bocor memiliki hasil yaitu kondisi tanpa kontaminan nilai PDIV sebesar 9,95 kV, fly ash tertinggi 21,60 kV Alga tertinggi 14,1 kV, dan garam tertinggi 7,85 kV. Nilai arus bocor dan karakteristiknya akan dipengaruhi jenis kontaminan dilihat dari bahan dan sifatnya. Semakin tinggi nilai ESDD dan NSDD nilai arus bocor yang ditandai dengan munculnya PDIV akan ikut naik. Nilai ESDD dan NSDD akan berbanding lurus dengan besar arus bocor. Jenis kontaminan memiliki karakteristik dan grafik radar yang selalu sama pada setiap jenis kontaminan. Dimana pola grafik ketika normal grafiknya rata keseluruh sisi grafik radar, kontaminan garam rata keseluruh sisi dengan grafik yang paling besar, kontaminan alga rendah di bagian median serta maksimal, dan fly ash rendah pada bagian median serta maksimal.
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This study investigated the characteristics of leakage current in polymer insulator sheets caused by contaminants. The study followed the guidelines of IEC 60815 standards and utilized various contaminants, including salt, fly ash, and algae. Conditioning for algae contaminants was conducted over three months. Tests were performed using varying high AC voltages, and an oscilloscope assisted by a PD detection circuit was used to observe the leakage current characteristics of polymer insulator sheets due to contaminants. The data obtained from the oscilloscope was processed into PRPD data. Leakage and current characteristic data derived from the PRPD method were represented through the distribution of PD pulses. Measurements were conducted using HFCT and HPF circuits, with ESDD, NSDD, and voltage values variations. The test results demonstrated that contaminants significantly impact the leakage current characteristics. The leakage current test yielded a PDIV-free condition of 9.95 kV, with the highest values observed for fly ash (21.60 kV), algae (14.1 kV), and salt (7.85 kV). The leakage current and its characteristics are influenced by the type of contaminant, considering the material and its properties. Higher ESDD and NSDD values correspond to increased leakage current, indicated by the occurrence of PDIV. The ESDD and NSDD values correlate directly with the leakage current. Each type of contaminant possesses unique characteristics and radar charts. The radar chart for normal conditions is flat on all sides, while salt contaminants show a flat pattern on all sides with the largest graph. Small algae contaminants appear on the median and maximum, while low fly ash contaminants are observed on the median and maximum points.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Algae Contaminant, Fly Ash Contaminant, Leakage Current, Phase Resolved Partial Discharge, Salt Contaminant, Arus Bocor, Kontaminan Alga, Kontaminan Fly Ash, Kontaminan Garam, Phase Resolved Partial Discharge.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3401 Insulation and insulating materials T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK351 Electric measurements.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Bagus Septianto
Date Deposited:	30 Jul 2023 01:18
Last Modified:	30 Jul 2023 01:18
URI:	http://repository.its.ac.id/id/eprint/99691

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