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The increasing interests on the Palm Oil (PO) and Coconut Oil (CO) as a potential alternative for dielectric insulating fluid in transformers encourage a number of researches on different aspects of these oils. Among the common areas under study is the lightning breakdown voltage. In this paper, the lightning breakdown voltage of PO and CO is examined. The type of PO used in this study is Refined,...
On behalf of the Organizing Committee, I would like to welcome all participants to the 2014 IEEE International Conference on Power & Energy (PECON 2014).
Partial discharge (PD) is the most unwanted phenomenon in high voltage insulation system. One of the wellknown types of PD in high voltage insulation is corona discharge. In this work, the characteristics of corona discharges from different types of electrodes (sharp, flat and sphere electrodes) were studied to enhance the understanding of corona discharges. The electrical field distribution for all...
Biodegradable insulation oils are gaining acceptable use in power transformers as alternative to the successfully petroleum-based oil. In general all insulation oils must be good as insulators and as well as being good heat exchange media. The ability of the insulation oil to remain physically and chemically stable under thermal stress defines the quality of the oil. Based on this expectation, this...
Cable terminations are known as the weak point of cross-linked polyethylene (XLPE) power cables. Therefore, power companies are constantly seeking new ways to create more effective cable termination designs. In order to improve cable termination design, it is required to understand the nature of weak points at the cable end. Partial discharge measurement is a non-destructive measurement method, which...
Among the alternative fluids considered for application in transformers are Palm Oil (PO) and Coconut Oil (CO). Among the important studies that need to be carried out before it can be applied in-service is the lightning impulse performance. This paper presents the experimental work on the lightning impulse breakdown voltage of different PO, CO and Mineral Oil (MO). The PO used in this is the Refined...
The effects of electromagnetic fields(EMF) due to high voltage line on the parallel pipeline are not a common issue nowadays. The EMF will bring up some pipeline problems and safety issues. There are only a few of previous studies about EMF effects consider in the lightning fault parameter and study in term of currents. This means the EMF effect of the transmission line to the pipeline still not completed...
Polymer-based insulator was widely used in high voltage application. This research was carried out to study effect of different percentages of natural rubber blended with high density polyethylene (HDPE) polymers towards improvement of electrical breakdown and tensile streght. In this study, different percentages of natural rubber were used to blend with HDPE to form HDPE + DPNR (10%, 20%, and 30%...
This paper presents a Wavelet based alienation technique to detect and classify various faults on transmission line. The proposed scheme analyses the absolute values of three phase current signals over a half cycle to obtain detail coefficients. These detail coefficients of half a cycle are compared with those of previous half cycleto compute alienation coefficients which are further utilized to detect...
Faults can occurred at the transmission line due to lightning strike, broken conductor, cross arm or tower falls, danger tree, crane or animal encroachment, polluted insulator etc. Each type of fault will represents a fault resistance value. Fault resistance will affects the accuracy of protection relays in fault location and fault zone detection. Phase to phase fault is one type of unsymmetrical...
In this paper, a project initiated by the Energy Commission of Malaysia has been carried out to find the level of power quality in Malaysia as well as to estimate the cost associated with power quality. Normally, industry has a production target to be achieved yearly. To maintain the quality of production, several factors must be taken into account, such as labor quality, working environment and facilities...
The electricity waste is severe especially in large organizational buildings where the use of air conditioners, fridges and electrical motors are rampant. Due to lack of energy saving consciousness, users may not switch off this equipment after use. Thus, it would be an advantage if there exist a system that will be able to identify the appliances from one place without the residence having to go...
The penetration level of both photovoltaic and home automation systems is expected to increase in the short-term future in Germany and their combination will undoubtedly have some effect on the low-voltage grid. This study outlines the development of a high-resolution smart home power demand model taking into account the activity patterns of individuals, based on non-homogeneous Markov chain that...
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