—The electrical arc occurring in the sliding contact between the supply contact line and the current collector (pantograph) of an electrical locomotive is a fast transient phenomenon able to progressively degrade the line-to-pantograph contact quality and consequently the continuity of operation. A reliable tool for the arc event detection installed on each locomotive could allow a predictive maintenance of both contact line and locomotive pantograph, with a consequent improvement of the continuity of operation of the railway system. This paper represents the first step in the development of such a monitoring system. In detail, it provides a first electrical characterization of the sliding contact and, through an electrical model, it investigates the conductive effects on the overhead contact line.
Pantograph-to-OHL Arc: Conducted Effects in DC Railway Supply System / Crotti, G.; Giordano, D.; Roccato, P.; Delle Femine, A.; Gallo, D.; Landi, C.; Luiso, M.; Mariscotti, A.. - (2018), pp. 1-6. (Intervento presentato al convegno 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS)) [10.1109/AMPS.2018.8494897].
Pantograph-to-OHL Arc: Conducted Effects in DC Railway Supply System
Crotti, G.;Giordano, D.
;Roccato, P.;
2018
Abstract
—The electrical arc occurring in the sliding contact between the supply contact line and the current collector (pantograph) of an electrical locomotive is a fast transient phenomenon able to progressively degrade the line-to-pantograph contact quality and consequently the continuity of operation. A reliable tool for the arc event detection installed on each locomotive could allow a predictive maintenance of both contact line and locomotive pantograph, with a consequent improvement of the continuity of operation of the railway system. This paper represents the first step in the development of such a monitoring system. In detail, it provides a first electrical characterization of the sliding contact and, through an electrical model, it investigates the conductive effects on the overhead contact line.File | Dimensione | Formato | |
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