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Subject: 
Re: Basic Train Electrical Questions
Newsgroups: 
lugnet.trains
Followup-To: 
lugnet.faq
Date: 
Sat, 14 Dec 2002 03:22:52 GMT
Viewed: 
1940 times
  
In lugnet.trains, Frank Filz writes:
> Do we have the answers to these in the FAQs? This question comes up
> alot...

Frank, I'm cross-posting this to .faq. That's the best way to bring to my
attention something that needs to be added.
Thanks
Cary

> 
> Jan-Albert van Ree wrote:
> > 
> > Justin Pankey wrote:
> > > Hi All,  I've had a HUGE town display with train, monorail, etc.;  but am
> > > now curious about some issues.  For instance...
> > > 
> > > How many motorized engines can be hooked together to maximize power, but not
> > > over-burden the controller?
> > 
> > 2 is the max with the default powersupply.
> 
> Hmm, I haven't done pull tests, but we've successefully run at least 4
> motors on a single controller without overheating.
> 
> > > Can you hook up more than 1 controller to a track for added power without
> > > harming the engines?
> > 
> > Won't harm the engines, but possibly damages the controllers. Not
> > recommended. Better is to replace the wall outlet power supply by a
> > heavier one, the controller can handle a larger amount of current. That
> > way up to 4 train engines can be powered.
> 
> I'm not sure using a larger wall wart gets you much, but I'm not
> familiar with all the guts. I'm guessing that the overload protection is
> current based though, which means a larger wall wart doesn't help.
> 
> Connecting the outputs of two controllers has almost no risk. A real
> power supply (idealized as a constant voltage supply) always has
> resistance in series with the power supply. This resistance means you
> never have a real short. Besides, if too much current started to flow
> (because you had the two controllers set to opposite extremes of the
> output range), the overflow protection would kick in.
> 
> Frank



Message is in Reply To:
  Re: Basic Train Electrical Questions
 
Do we have the answers to these in the FAQs? This question comes up alot... (...) Hmm, I haven't done pull tests, but we've successefully run at least 4 motors on a single controller without overheating. (...) I'm not sure using a larger wall wart (...) (24 years ago, 14-Dec-02, to lugnet.trains)

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