Analisis Distribusi Medan Listrik pada Isolator Gantung Jenis Polimer akibat Pengaruh Kontaminan
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Abstract
The paper investigates the electric field distribution in polymer suspension insulator when exposed to contaminants. The analyzed suspension insulator has glass core and will be simulated using FEM (Finite Element Method) software. Contaminant used is sea water. Simulations carried out by comparing the condition of the electric field on the surface of the insulator which is contaminated by seawater with normal conditions. In addition, the influence of the contact angle on the characteristics of the electric field distribution in insulators will also be analyzed. Therefore, the shape of contaminants are varied by considering the contact angle Then, to determine the deeper influence of contaminant, the analysis is carried out in three different places, which is the core part, the surface of the insulator and the fin closest to the working voltage insulator. From the conducted analysis, it is known that the contaminants are not much affected the electric field distribution at the core, but became very influential in the distribution of the electric field at the surface of the insulator and the fin closest to the working voltage insulator. Furthermore, the contact angle of contaminants affects the characteristics of the distribution of the electric field significantly
Keywords : Glass Core Rod, Polymer Suspension Insulator, Sea Water Contaminant, Contact Angle
Abstrak—Paper ini menyelidiki distribusi medan listrik pada isolator gantung berbahan polimer ketika isolator tersebut terkena kontaminan. Isolator gantung yang dianalisis mempunyai inti gelas dan akan disimulasikan menggunakan perangkat lunak berbasis FEM (Finite Element Method). Kontaminan yang digunakan adalah air laut. Simulasi dilakukan dengan membandingkan kondisi medan listrik pada permukaan isolator yang terkontaminasi air laut dengan kondisi normal. Selain itu, juga akan dianalisis pengaruh sudut kontak terhadap karakteristik distribusi medan listrik di isolator. Oleh karena itu, bentuk kontaminan divariasikan dengan mempertimbangkan sudut kontak Kemudian, untuk mengetahui pengaruh lebih dalam, analisis dilakukan di tiga tempat yang berbeda, yaitu pada bagian inti, permukaan isolator dan sirip terdekat dengan tegangan kerja isolator. Dari analisis yang dilakukan, diketahui bahwa kontaminan yang menempel tidak banyak mempengaruhi persebaran medan listrik pada bagian inti, namun menjadi sangat berpengaruh pada persebaran medan listrik di permukaan isolator dan sirip terdekat dengan tegangan kerja isolator. Lebih jauh lagi, sudut kontak dari kontaminan mempengaruhi besar dan karakteristik dari persebaran medan listrik secara signifikan.
Kata Kunci : Batang Inti Bahan Gelas, Isolator Gantung Polimer, Kontaminan Air Laut, Sudut Kontak
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