Abstract This paper presents a study on the performance of fourth rail direct current (DC) urban transit affected by an indirect lightning strike. The strike was replicated and represented lightning-induced overvoltage means Rusck model, with sum two Heidler functions as its channel base input, perfect conducting ground. aims to determine whether has any influence regard LRT Kelana Jaya line, D...

power system overvoltages due to switching, lightning and other disturbances are the main problem for designers of the power transformers. once some frequencies of the incoming surges match with some of the natural frequencies of transformer winding, the resonance phenomenon is expected in transformer winding. the resonant overvoltages may destroy the insulation between turns and cause to insul...

This paper consists of two sections: control and stabilizing method for chaotic behaviour of converter is introduced in first section of this paper for the removal of harmonics caused by the chaotic behaviour in current converter. For this work, a TimeDelayed Feedback Controller (TDFC) control method for stability chaotic behaviour of buck converter for switching courses in current control mode...

Partial discharge of an insulator or surge arrester is a symptom of an insulation breakdown or insulation failure. It is very important to know the position of discharge source as soon as possible in order to remove this cause. In order to achieve remote monitoring of the faults due to an insulator and surge arrester on the distribution systems, the most important things need to do is to determ...

A new apparatus has been constructed to investigate the quenching of laminar hydrocarbon-air flames, at elevated initial pressures. The pressure-tight quenching channel is of trapezoidal form, with very smooth decrease of the channel width along its one meter length that is almost equivalent to a parallel-plate flame arrester. Propane-air mixture has been tested on the entire flammability domai...

Overhead distribution lines are prone to lightning overvoltages due to their configurations and characteristics. Metal Oxide Varistor (MOVs) arresters for many years have proven to be more advantageous than others arresters in lightning surge protection; therefore it is worthwhile to continually assess the behavior and performance of these arresters to different kind of overvoltages caused by l...

Dalam pemasangan arrester perlu di ketahui jarak yang optimal agar dapat berfungsi dengan baik., digunakan simulasi Atp Draw untuk mengetahui tegangan akibat sambaran petir sebelum dan sesudah pasang kemudian lakukan metode analisis matematis Untuk melakukan perhitungan-perhitungan berdasarkan rumus berlaku didalam perhitungan koordinasi lokasi menganalisa apakah Arrester bekerja maksimal atau ...