The present-day evolution of pantograph preload regulating systems, exploiting pressure-controlled servo-valves driven by electronic units, allows a diversification of the preloads of front and rear pantographs. In this work a suitable solution to improve multiple pantographs collection quality is analysed, by the use of a lower mean force on the leading pantograph meant to reduce the oscillations of contact wire the trailing pantograph is subjected to. This would improve the current collection quality of the trailing pantograph, and could be pursued even admitting a slight worsening of front pantograph’s performances. At the same time an increased preload on the rear pantograph, whose working condition is the most critical, would allow to prevent contact losses.
Differentiation of pantographs’ preloads as a mean to improve multiple collection and speed up existing lines
M. Carnevale;
2011-01-01
Abstract
The present-day evolution of pantograph preload regulating systems, exploiting pressure-controlled servo-valves driven by electronic units, allows a diversification of the preloads of front and rear pantographs. In this work a suitable solution to improve multiple pantographs collection quality is analysed, by the use of a lower mean force on the leading pantograph meant to reduce the oscillations of contact wire the trailing pantograph is subjected to. This would improve the current collection quality of the trailing pantograph, and could be pursued even admitting a slight worsening of front pantograph’s performances. At the same time an increased preload on the rear pantograph, whose working condition is the most critical, would allow to prevent contact losses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
