Computation of Energy Absorption and Residual Voltage in a Fourth Rail LRT Station Arresters in EMTP-RV: A Comparative Study

Urban Rail Transit

Ungku Anisa Ungku Amirulddin¹  Miszaina Osman¹  Mohd Zainal Abidin Ab Kadir²  Farah Asyikin Abd Rahman³ 

[1] Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), 43200, Kajang, Selangor, Malaysia;Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), 43200, Kajang, Selangor, Malaysia;Centre for Electromagnetic and Lightning Protection Research (CELP), Advanced Lightning, Power and Energy Research (ALPER), Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia;Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), 43200, Kajang, Selangor, Malaysia;Electrical Engineering Department, Politeknik Kota Kinabalu (PKK), 88460, Kota Kinabalu, Sabah, Malaysia;

关键词: DC transit;    Electromagnetic Transients Program–Restructured Version;    Fourth rail;    Indirect lightning;    Lightning-induced overvoltage;    Surge arrester;   

DOI  :  10.1007/s40864-021-00143-w

来源: Springer

【 摘 要 】

This paper presents a study on the performance of a fourth rail direct current (DC) urban transit affected by an indirect lightning strike. The indirect lightning strike was replicated and represented by a lightning-induced overvoltage by means of the Rusck model, with the sum of two Heidler functions as its lightning channel base current input, on a perfect conducting ground. This study aims to determine whether an indirect lightning strike has any influence with regard to the performance of the LRT Kelana Jaya line, a fourth rail DC urban transit station arrester. The simulations were carried out using the Electromagnetic Transients Program–Restructured Version (EMTP–RV), which includes the comparison performance results between the 3EB4-010 arrester and PDTA09 arrester when induced by a 90 kA (9/200 µs). The results demonstrated that the PDTA09 arrester showed better coordination with the insulated rail bracket of the fourth rail. It allowed a lower residual voltage and a more dynamic response, eventually resulting in better voltage gradient in the pre-breakdown region and decreased residual voltage ratio in the high current region.

【 授权许可】

CC BY