Battery Loco Controls

There are four motors to each machine, so three control ranges are available- all series, series-parallel, and all-parallel. The contactors are electro-pneumatic, to avoid having traction current passing through the controller fingers. I'm not sure whether resistances are used, or 'end cell' techniques for the intermediate notches. At least one had 'Metadyne' gear from some withdrawn passenger stock.

You don't need an ammeter to notch-up, any more than you need a rev. counter to change gear on a bus. You just learn the feel of it. If the canopy switch blows out, you 'don't do it again'!

I was thinking that GEC controllers used electro-pneumatic contactors, and BTH electro-magnetic. I may be confusing GEC with British Westinghouse. It's a long time ago.

Anyone?

Thanks for the reply guy's. Looks like these locos had really good controllability. I suppose they would need it for ultra slow ballasting and tamping duties and the likes.

You could only isolate the motors in pairs if there was a defect,when you did this you didn't get any movement till series-parallel.Didn't half move off with a jolt!

Ah thanks

Will this be modelled in the game?

Great! If only IHH did with his CIG/VEP

Train Simulator 2013, newest name for Rail Simulator or Railworks

Do battery locos have retractable buffers or do they flip over onto the buffer beam for coupling to tube stock. It seems many photos are conflicting. Some show a big cylinder above each buffer and others have none. Are there two different designs?

When they were converted to buckeye coupling - 1983-1988.

Thanks for the info guys. Does the Battery Loco wedgelock still work for coupling to tube stock. Thought the Buckeye would get in the way.

I think the braking system was changed from Westinghouse to Christianson,which is similar but more up to date.

So! I'm trying to fathom out the electrics control circuit. I'm thinking along the line of when the motors are in series there are two banks of resistances, one for each bogie and pair of motors. The contactors must silmaltaneously switch out resistance until both motors on each bogie are connected in full series. I doubt wether the battery loco has a transition contactor and most probably drops the power to the motors to go into Series/Parallel configuration. Then, do we have the two banks of resistances being swithced out simultaneously, one for the motors on one bogie in parallel and one for the other two motors on the other bogie in series. Finally going into parallel with the resistances being switched out for both motors on both bogies.
I've have totaly surmised this but would be greatful if anyone has any circuit diagrams they could share or clarify my description.
Thanks

Ok! Thanks for the replies everyone. I'm now working on the speedo that's fitted in the cab. I take it it has two illuminated bars, one for target and one for actual but does it have any numbers displayed in the window as well to say whereabouts the bar is actually at? My picture is also quite blurry. Does anyone know what the buttons say on it. Thanks.

Looks like Lillie Bridge to my untrained eye.