ANALISIS SIFAT HIDROFOBIK PERMUKAAN HDPE BERDASARKAN NILAI TOTAL HARMONIC DISTORTION
Abstract: Polymer material has
been developed to replace the porcelain insulator material and glass. When it
is used as outdoor insulator, environmental conditions have a significant
influence to the value of surface discharge current, especially for the coastal
area and industry. Salt, dust and chemicals contaminant are suspected as the
causes of initial current of surface discharge and the insulator surface
degradation which lead to a flashover. To analyze the performance of the
insulator surface when the leakage current occurs, the Total Harmonic
Distortion (THD) is needed to be determined. The value of THD leakage current
indicates the hydrophobic characteristic of surface material. This paper
analyzes the results of leakage current measurement in laboratory-scale based
on IEC 587:1986 with Inclined-Plane Tracking (IPT) method to the High Density
Polyethylene (HDPE) polymer material which is provided in smooth and rough
surface. The testing voltage is 50 Hz AC. Data of leakage current magnitude
values cover its maximum average as a function of time and the result of FFT to
the wave form of the leakage current. As the result, the value of percentage THD
decrease as the function of time. The smooth surface material has THD value
43.42% and the rough surface has 15.89%.
Penulis: Abdul Syakur,
Hermawan, Sarjiya, Hamzah Berahim
Kode Jurnal: jptkomputerdd090034

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