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Sulfur hexafluoride is a gas that used as a medium for insulation on electrical equipment. One use of Sulfur hexafluoride gas in high voltage equipment used on equipment Gas Insulated Switchgear. The use of Sulfur hexafluoride gas in Gas Insulated Switchgear equipment has the potential because of Sulfur hexafluoride gas as an insulating gas that can withstand the breakdown voltage reaches 785 kV....
Proper treatment of insulating liquid will result in improvment of properties of the whole insulating media of power transformers. High-frequency measurement are usually performed to determine the material property. In this paper, conductivity was investigated on used transformer oil which is affected by 30–150 seconds microwave heating as high-frequency wave. The results showed that the duration...
This paper discusses the elimination of harmonic currents in the industrial power system utilizing adjustable speed drives. The harmonic current pattern measured and simulation results will be compared to IEEE-Std 519-2014. ASD can generate harmonic currents caused by front-end or input rectifier which tends to draw in the form of non-sinusoidal currents and not continuous. Based on the measurement...
This research aims to investigate the influence of the orientation of market on the relationship between type of innovation and the company performance with furniture industry in the context of feast in Solo Raya, Central Java, Indonesia. The population is the owner or manager of furniture in micro scale, small and medium-sized enterprises (SMEs) in Solo Raya. Total of sample is 200 respondents. The...
Mathematical analysis for studying the electrical performance of polymeric insulation materials in tropical climate is a multiple regression model. It is derived from statistical science combined with statistics toolbox from Matlab programme. For engineering point of view, it could be applied for silane epoxy resins, for some purpose, namely, 1) to prove ageing mathematical model by means of data...
The use of ZnO arrester for electrical equipment lightning surge protection has been worldwidely spread since the last two decades. Many researches paid attention to the performance of the ZnO arrester. Many kind of ZnO arrester tests were carried out. One kind of test that needs to be done is an impulse current testing using 8/20 microseconds impulse waveshape of 5000 A and of 10000 A amplitudes...
More and more applications of ZnO arrester in electrical system experienced more problems. One thing, that is still under some investigation, is the effect of multiple lightning strike to the performance of ZnO arrester. As we know, the design of ZnO arrester for transmission system and for distribution system differs in the point of view of the number of ZnO blocks. Transmission system, due to its...
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