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All Journal MEDIA ELEKTRIKA TEKNIK Indonesian Journal of Electrical Engineering and Computer Science Jurnal Rekayasa elektrika
Hamzah Berahim
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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PENGUJIAN SUDUT KONTAK PADA BAHAN ISOLASI RESIN EPOKSI DENGAN PENGISI PASIR PANTAI YANG MENGANDUNG BANYAK KALSIUM M. Toni Prasetyo; Hamzah Berahim; T Haryono
MEDIA ELEKTRIKA Vol 5, No 1 (2012): MEDIA ELEKTRIKA
Publisher : PSTE UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6560.356 KB) | DOI: 10.26714/me.5.1.2012.%p

Abstract

Formation tracking power (electrical tracking) on the surface of an insulating material due to flashover continuously, especially when there are contaminants flotving on the surface of the insulating material. Due to electrical tracking the insulation material surface to be broken and easier flow of electric current. Insulating material must have good electrical characteristics leakage current is very small, the critical flashover voltage is very large and the surface is hydrophobic materials The material used in this study is an epoxy, resin insulating silicone rubber polymer with a fillerKukup beach sand containing a lot of caicium carbonate with stoichiomelric values (the ratio of materials and hardener or curing agent) is equal to 1, with values increasing sizefiller (filler) , 120x50 mm sample size. The study was conducted in the laboratory according to standard IEC 587: 1984. In this study, the effect of the variation of the filling of the contact angle and its influence on surface degradation caused by charging, were analyzed. The result showed that the epoxy resin used in this study whice are categorized partly wet (partially wetted) and approached hydrophobic. The more concentration of silicone rubber and sand as filler (filler.) will increase the hydrophobic nature of the contact angle shown is growing. lf the surface is hydrophobic, then the time required for the first discharge and breakdown on the surface of the old material.Keywords: epoxy resins, fillers, contact angle, hydrophobicity
Accelerated Aging Effect on Epoxy-polysiloxane Polymeric Insulator Material with Rice Husk Ash Filler Tumiran .; Arif Jaya; Hamzah Berahim; Rochmadi .
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 4: August 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

The performances of outdoor polymeric insulators are influenced by environmental conditions. This paper presents the effect of artificial tropical climate on the hydrophobicity, equivalent salt deposit density (ESDD), surface leakage current, flashover voltage, and surface degradation on epoxy-polysiloxane polymeric insulator materials with rice husk ash (RHA). Test samples are made at room temperature vulcanized (RTV) of various composition of epoxy-polysiloxane with rice husk ash as filler. The aging was carried out in test chamber at temperature from 50oC to 62oC, relative humidity of 60% to 80%, and ultraviolet (UV)  radiation 21.28 w/cm2 in daylight conditions for 96 hours. The experiment results showed that the flashover voltage fluctuates from 34.13 kV up to 40.92 kV and tends to decrease on each variation of material composition. The surface leakage current fluctuates and tends to increase. Test samples with higher filler content result greater hydrophobicity, smaller equivalent salt deposit density, and smaller critical leakage current, which caused the increase of the flashover voltage. Insulator material (RTVEP3)showed the best performance in tropical climate environment. Artificial tropical aging for short duration gives less effect to the surface degradation of epoxy-polysiloxane insulator material. DOI: http://dx.doi.org/10.11591/telkomnika.v10i4.846
Pengujian Karakteristik Limbah Pasir PLTP Dieng Sebagai Bahan Pengisi Isolator Resin Epoksi Silane Abdul Syakur; Tumiran Tumiran; Hamzah Berahim; Rochmadi Rochmadi
Jurnal Rekayasa Elektrika Vol 9, No 4 (2011)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (680.369 KB)

Abstract

Epoxy resin has been developed as an insulator material on the distribution and transmission line. In its development, the basic composition of DGEBA epoxy resin with MPDA as hardener is hydrophilic. Silane is added to improve the surface properties of materials to be more hydrophobic. To reduce the volume of epoxy resin as base material, silica sand from PLTP Dieng is added as filler. This paper presents the results of research on the effect of adding the composition of silica materials from PLTP Dieng upon silane epoxy resin sample to the value of the dielectric loss factor, contact angle and leakage current. Samples were prepared with a sample size 120mm x 50mm x 5mm. Material is composed of DGEBA, MPDA, silanes and silica with a various composition. Sample codes were 10%, 20%, 30%, 40% and 50%. Contact angle and leakage current were carried out according with IEC 587:1984 standards. Measurement of the dielectric loss factor (Tan ) was carried out at the Laboratory of High Voltage Engineering, PT. PLN (Persero) Electricity RD, Duren Tiga Jakarta, using a measuring instrument series M4100 Insulation Analyzer Instrument. The electrodes used in these measurements have diameter of 2.5 cm and 5 cm. The results showed that the composition of silica materials PLTP Dieng upon silane epoxy resin samples affect the value of dielectric loss factor. Based on the results of the measurement, it is concluded that the higher composition of silica materials, the higher value of dielectric loss factor are. Based on these results, it is suggested that the use of silica as a filler must consider the effect on the value of dielectric loss factor. When the dielectric loss factor is high, then the losses in the dielectric material is also high. 
PENGARUH PENAMBAHAN SILIKON TERHADAP SUDUT KONTAK HIDROPOBIK DAN KARAKTERISTIK ARUS BOCOR PERMUKAAN BAHAN RESIN EPOKSI Abdul Syakur; Ika Novia A; Sarjiya Sarjiya; Hamzah Berahim
TEKNIK Vol 32, No 3 (2011)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.558 KB) | DOI: 10.14710/teknik.v32i3.1733

Abstract

Currently, polymer materials such as epoxy resin have been used as an insulator in the distribution andtransmission line. Some advantages of using this epoxy resin material having the dielectric properties are betterthan porcelain and glass insulators. On the other side, epoxy resins are also disadvantage the surface ishygroscopic. For the repair was done by adding the surface properties of silicone rubber materialThis paper describes the effect of adding silicone rubber against contact angle of hidrophobicity and surfaceleakage current characteristics of epoxy resin materials ( Di-Glycidyl Ether of Bisphenol A (DGEBA) andMethaphenilene Diamine (MPDA). The study was conducted in the laboratory using the electrode method IEC587:1984 with NH4Cl contaminants. The voltage applied to the epoxy resin sample at 3.5 kV and 50 HzfrequencyThe experimental results showed that the addition of silicon rubber in epoxy resin makes the surface materialcontact angle increases. The higher percentage of silicone rubber, the greater the contact angle and the longertime required for the occurrence of surface discharge.
Co-Authors Abdul Syakur Arif Jaya Ika Novia Ika Novia A Jamhari Jamhari M. Toni Prasetyo Rochmadi . Rochmadi Rochmadi Sarjiya T Haryono Tumiran