The safety and reliability of electric traction vehicles are seriously endangered by external lightning strokes and internal switching surges which result from the operation of circuit breakers or the moving contact between the pantograph and the overhead catenary wire. Overvoltages in electric traction vehicles are much higher than the rated voltages of railway system, causing server damage to...

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...

In this paper, intelligent models based on fuzzy inference are proposed to analyze single overhead line terminated to arrester. This paper consists of two parts. The first one is modeling overhead line and the second one is related to modeling grounding system. In each part, the behavior of the problem is first represented as simple and unchanged membership functions. After then, effects of par...

Abstract When lightning intrudes into the over-voltage in 500 kV substation, wave will be introduced substation along line, which seriously affect insulation level of equipment. In this paper, firstly, working principle, characteristics, and current simulation ZnO arrester are described. Then, electromagnetic transient program (EMTP-ATP) used a GIS carried out research to over-voltage, specific...

Lightning surges that come from transmission lines are very dangerous for equipment in substations, especially transformers. The transformer is a important main component of the substation. As result damage to will distribution electrical energy consumers can be disrupted. solution this problem install an arrester overcome lightning surge voltage order avoid at To secure 150 kV Bukit Semarang B...

500kV substation is especially important to the grid of our country, once it encounters lightning damage, the safety and reliability of the whole power system will be directly affected. As lightning intruding waves will cause overvoltage on electric equipments by intruding from the transmission line or straightly stroking the substation, which seriously influences the insulation level of equipm...