Study of lightning ground flashes interaction with railway lines

Ali Salem, Ali Ahmed (2016) Study of lightning ground flashes interaction with railway lines. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

Railway signaling systems on conventional lines of Malaysian railway companies have been damaged from lightning, especially in 2010. Therefore, effective and economical lightning protection measures are necessary for railway signaling systems because suspended operation or train delays due to lightning damage may cause social disruption. For analyzing lightning risk and making study for countermeasures against lightning damage, must measure the lightning overvoltage on railway signaling cables, which were laid at the ground surface and overhead, and rails in the field to enable quantitative analysis of the frequency of lightning overvoltage occurrence. Moreover, we investigated the correlation of lightning overvoltage (V) on signaling cables and rails with lightning conditions, such as the strike current (I) and the strike position ( distance from the measuring position). From this we deduced the correlation between the lightning overvoltage (V) and (I), expressed as a linear expression. From this correlation, the lightning risk for railway signaling systems against lightning conditions can be estimated. In addition, it is possible to calculate the possibility of lightning damage to railway signaling equipment.

Item Type:Thesis (Masters)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001-1841 Production of electric energy or power. Powerplants. Central stations
ID Code:9068
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:09 May 2017 15:34
Last Modified:09 May 2017 15:34

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