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Andrew Sharp

A.R.T is the International Air Rail Organisation's blog, with news, articles and comment on all things related to air rail links world-wide. Your comments and thoughts are welcome: for obvious reasons, they will be moderated and may be edited.


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May05

Paris tram power supply innovations

Permalink | 05/05/10 | Categories: Railways, State of the ART | by: A Sharp English (UK)

There are a few tram systems around the world where, in some streets, overhead wires are not used in order to preserve the historic street-scape.

These systems tend to use either underground current collection systems (and since this was developed in France, it is referred to by the French term, alimentation par sol) or some kind of battery.

The T2 line being built in the suburbs of Paris uses ultracapacitors as a storage system. They are charged when the tram brakes: this is just like the regenerative braking system used on a number of electrified railways. The project is part of a major test by Alstom and Paris transit operator RATP.

The really novel thing about this particular installation is that pantographs are lowered automatically, without driver intervention: they are activated by the on-board GPS system.

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