Investigation of grounding resistance effect on the MV grid of Hellenic electromotive railway during lightning strikes

Pastromas, Sokratis; Papamikou, Alkistis; Peppas, Georgios D.; Pyrgioti, E.

doi:10.1109/iclp.2016.7791508

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…Until recently, Catenary Contact System has been the most traction power supply system to deliver power to electric train (1)(2) . However, most of the overhead catenary transmission lines suffer from the lightning problems (2-3) .…”

Section: Introductionmentioning

confidence: 99%

“…Flashover occurs when the induced overvoltage exceeds lightning withstand voltage level of insulators (2) . Current research studies have explained lightning effects when strikes in the Overhead Catenary Transmission line (1,3,(8)(9)(10)(11)(12)(13) .…”

Section: Introductionmentioning

confidence: 99%

“…Negative lighting was showed to have a higher possibility of a multiplicity of strokes per flash (15)(16)(17)(18) . Most of the studies in the overhead catenary system have been examined the effects of lightning strikes on the mast, conductors, and traction substation by using several transient programs for simulation (1,3,(8)(9)(10)(11)(12) . These studies have been done on single lightning strokes without considering the effects of multiple lightning strokes.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics and Behavior of Transient Current during Multiple Lightning strokes on a Train in Thailand by using ATPDraw

Minja

Chombo

Promvichai

et al. 2017

The Proceedings of the 5th International Conference on Industrial Application Engineering 2017

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This study describes characteristics and behavior of transient current during Multiple lightning strokes on train's pantograph of 2×25 kV AC, 50 Hz Catenary Contact System. 25 kV AC, 50 Hz Catenary Contact System on double-track elevated railway system which connects Suvarnabhumi Airport to central Bangkok (Phayathai, Makkasan) was used in the study. The characteristics of transient current in term of its magnitude, front times and tail times affected by Multiple lightning strokes were studied. The assumption of studies based on the return Multiple lightning strokes current ranging 1-200 kA, front time of multiple lightning strokes between 1-3 μs, elevated pole resistance of 50 Ω and grounding resistance of 5 Ω. The Behaviour of transient current when the pantograph is at the Mast (4 th Mast) for Case 1 and at the mid-span of Masts (3 rd and 4 th Masts) for Case 2 were also studied. The Catenary Contact System on elevated railway system with a train and multiple lightning strokes were modeled in ATPDraw software. Transient current of negative multiple lightning strokes showed flashovers across insulators in any magnitude and waveform for Case 1 and Case 2. The improved protection for Catenary Contact System should consider the effects of negative multiple lightning strokes.

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Section: Introductionmentioning

confidence: 99%