Andreas Wiedenhoff
A photo taken one evening at #Dijon 🇫🇷 in August 2019: an #SNCF #BB22200 dual-voltage electric and a rake of #Corail carriages forming a #TER regional train. 40 years earlier these “Nez cassé” locos and Corail cars could be seen on the country’s most prestigious #Rapide services.
Feb 22, 2024 at 6:28pmWeb
Show threadMartin HoffmannFeb 22, 2024
@andreaswiedenhoff It’s not just me, this pantograph arrangement is weird, right?
Show threadJon WorthFeb 22, 2024
@partim All BB22200 have it this way. On a BB7200 it's standard (hinges both towards the centre). A BB15000 has only 1 pantograph. I presume the dual voltage equipment on the roof necessitates this for some reason. No other French dual voltage locomotives have it this way though. @andreaswiedenhoff
Show threadAndreas WiedenhoffFeb 22, 2024
@jon @partim if I remember well, the CC21000s (a sort of dual-voltage or rather bi-system version of the CC6500s) also had the AC pantograph oriented like the one on the BB22200, yet they had three pantos altogether, I believe: two for DC and one for AC. CC21000s are longer than the 15000/7200/222200 locos, so there was enough space for a third pantograph.
Show threadClaudsch 💙💛Feb 22, 2024
@partim @andreaswiedenhoff that's normal under 1,5 kV (direct current). Due to the high intensity of current, locos need to accelerate from 0 km/h with two pantos up.
Show threadJon WorthFeb 22, 2024
@claudsch Yes, but the point is that one is backwards (the normal arrangement is both hinges inwards, or both outwards, not one each way - that’s what's unusual on a BB22200) @partim @andreaswiedenhoff
Show threadMartin HoffmannFeb 22, 2024
@claudsch @andreaswiedenhoff I was thrown by both pantographs pointing the same direction. I’m used to the double pantograph from the Dutch 1700.
Show threadAndreas WiedenhoffFeb 22, 2024
@partim @claudsch @jon the front pantograph is for use under 1.5 kV DC, the rear one for 25kV AC. When starting to move under 1.5kV DC with a heavy payload, both pantos are up for the first few metres. (Afterwards only the DC one is operating, Dijon being electrified with 1.5kV DC.) The NS 1600/1700/1800 are 3kVDC only, like the SNCF BB7200, single-voltage only (1.5 kvDC).
Show threadJon WorthFeb 22, 2024
@andreaswiedenhoff We know that :-) We wonder why one pantograph is backwards. @partim @claudsch (and I spend a lot of time changing trains in Dijon, so have seen this plenty)
Show threadAndreas WiedenhoffFeb 22, 2024
@jon @partim @claudsch sorry Jon, I only saw your post after having typed my reply ... and yes, I know you are a Dijon "frequent traveller" ;-)
Show threadJon WorthFeb 22, 2024
@andreaswiedenhoff @partim @claudsch My suspicion is it must be that some of the dual voltage equipment on the roof limits space for the mounting of what's normally the ac pantograph, and hence on that series it is mounted backwards. On later BB26000 and BB36000 it is not the case.
Show threadMartin HoffmannFeb 22, 2024
@jon @andreaswiedenhoff @claudsch It’s weird that none of the Wikipedia articles find this worth mentioning.