I happened to see an Article in Friday's NY times about the MTA pumping out the east river tunnel with special pump trains. My silly question is how does the pump train get power when the system is shut off of power? Does the MTA use big "Jumper Cables" to where there is power? I can't see diesels running in those confined tunnels!
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Many MOW trains in the subway system are powered (pushed/pulled) by Diesels.
They probably have Genset locos for work train service in tunnels but the details need some time to track down. Maybe someone else can find a link to the info.
Arthur, you mentioned diesels for work train service. I looked all through your link and I did not find a mention of battery-power or genset/hybrid locos for MOW work in tunnels, nor did it show the newer Wabtec locos. Did I miss something? I spent about 20 minutes trying to research this before I moved on.
Believe it or not, diesels can run in confined areas with special air and exhaust filters. A TV series [Modern Marvels(?)] examined a diesel locomotive used in mines. It was flattened, like a battery-powered or a catenary-powered electric locomotive, and it was certified for use in mines.
Electricity and water do not mix, so a pump train would have to be powered by a motor like that one.
"Did I miss something"
I posted the link to the equipment they use.
Then you added that they might use something else, and there might be a website that describes them.
Since they don't, and the link I provided lists what they *DO* use, I think the link explains it best.
... the link I provided lists what they *DO* use, I think the link explains it best.
Arthur, your link is to a page not updated since 2008, which does not show the newer Wabtec MP 8AC-3 diesel-electric MOW locomotives. ReadingFan is right, they must be relying on low-emissions technolgy for operation in tunnels. I am surprised that the MTA would not have genset or battery locos for MOW use in tunnels, like the London Underground. Thanks to prrhorseshoecurve for including those awesome tunnel photos!
http://en.wikipedia.org/wiki/MP_8AC-3
The MP 8AC-3 is a light-weight Diesel locomotive built by the Motive Power division of Wabtec. It was designed from scratch as a work train engine for the New York City Subway system, where it is designated the R156. The MTA ordered 28 units in 2006. After some difficulty with the initial prototype, the first unit, numbered OL912, was delivered on May 1, 2012.[1] Deliveries will continue through mid-2013
I wonder if they designed the AC traction motors for extra clearance in flooded tunnels?
They don't use Chevy Volts as motive power? Nobody else is buying them.
98% of their work locos are diesels with National Mine Service scrubbers on them I believe they only have taken delivery on two of the MP 8AC-3's and don't even know if they have been put in service
Just checked http://www.nycsubway.org/wiki/...otives,_1965-Present and there is only one rostered
The diesels don't go into the high water--that's what the reach cars are for. The pump car itself is positioned at the far end of the reach car string, and is the one you see in the photos sitting up to it's couplers in water.
---PCJ
i work for the nyc mta as a conductor for over 10 years ,,and yes we use diesels underground and in tunnels ,
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