Everything on model trains, model railroads, model railways, locomotives, model train layouts, scenery, wiring, DCC and more. Enjoy the world's best hobby... model railroading!

Power To Trains

Ghi has HO scale and posts this questions for readers:

“I am just starting my model railroading. I made a big loop (20 x 4) . The trains run really well but the further from the transformer they go they start to slow down and when they come closer to the power source they speed up again. Can i put multiple power sources on the same loop from the same transformer?”

Share on FacebookEmail this to someoneTweet about this on TwitterShare on LinkedInShare on StumbleUponShare on Google+Share This Post

8 Responses to Power To Trains

  • Bill Keen says:

    YES!

    You CAN run additional connections from the same transformer. Actually, any additional transformers can be used IF they have the same IDENTICAL voltage.

    The problem you are experiencing is the result of ‘rail loss'; the steel doesn’t make for a good conductor so the further away from the source the locomotive is the less voltage it will get.

    The optimum situation would be to change to a DCC system which helps to eliminate that somewhat. You would still need additional taps to the line but your controller would be digital so the transformer would remain at the same voltage at all times.

    Engine control is the only hang-up when it comes to additional transformers with the standard analog supply.

  • Gustavo Fernandez says:

    Idon’t think that you’ll need multiple power sources, taking into account the loop size. The problem must be the resistance added by multiple pieces of track, bad conduction, etc. Try to feed in, at least three different parts of the loop, using the same transformer (power connections in paralel:3 positive cables connected to the same transformer plug to 3 different tracks and 3 negative cables likewise). The 3 feed points should be distributed evenly in your loop. Hope it helps

  • Frank B says:

    Rails and rail joiners have electrical resistance, so the longer the track from the supply point to the loco position, the greater the resistance there is to the flow of electrical current.
    So very simply, take additional feed wires from the controller terminals to the far side of the track. Make sure that you are connecting the inner and outer rails to their own respective terminals.
    As Gustavo suggests, this could be done at three or more places around the track, even down to every yard, if you want very constant speed.

  • Kevin Ching says:

    Hi Ghi
    You would be best to run a main buss two wires under your base board with droppers coming up to the track an various stages ie. every meter or so. this will eliminate any high resistance joins at rail joins and will maintain an even voltage all the way round your track. Just make sure the polarity does not change red wire Positive to outside rail and black negative to inside rail then connect your controller to the main buss.

  • Jihn says:

    run two heaver gauge wires (power supply) say red and green under your layout more less following the layout of the track. this way you can drop feeder wire from the to the track to the supply wires. Just make sure that you connect all the feed wire on the one side of the track to the red wire and the other side to the green wire.

  • Nix says:

    Just add 3 parallel connections as Gustavo Fernandez says. Why break head on going DCC when adding of 3 + wires & – wires spread evenly acrooss the loop to a single transformer solves theprob!

  • Ghi Boissevain says:

    Thank you all for your input and anwers to my question. Much appreciated. Just starting, so probably have more questions in do time.

  • Nikhil says:

    Would be a pleasure to share the experience & tackle the model railroad/ railway problems with easiest working solutions!

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

Add a photo or image related to your comment (JPEG only)

Reader Poll #1

On your layout - How important is having more SCENIC REALISM compared to having more TRACK / OPERATION? Select your personal preference by choosing a number from 1 to 10.

View Results

Loading ... Loading ...

Reader Poll #2

On your layout - How important is having more SWITCHING compared to having more MAINLINE RUNNING? Select your personal preference by choosing a number from 1 to 10.

View Results

Loading ... Loading ...

Scenery Techniques Explained

A Great Christmas Gift!

N Scale Track Plans

Watch Video

Learn About DCC

Use Tiny Railroad Micro Controllers



A micro controller is basically a small programmable computer device to help the model railroader “make things operate.” It is clever way to realistically replicate the movements, actions and functions you are likely to see on a full size railroad.

Free Catalog

NEW TO MODEL TRAINS?

Watch These Club Videos

Club members access helpful new resources each month: diagrams, video tutorials, articles, track plans and more. Watch the tour videos here.

Bringing Your Railroad To Life!

SUBMIT YOUR QUESTION

Submit Your Model Railroading Questions!

Before you submit your model railroading question please add some feedback, answers or comments to other postings on this model train blog. What goes around comes around... so if you can help others in the hobby, someone else may help you.

Important - Please add plenty of supporting details to any question you submit (eg. scale, solutions you have already tried etc.) , as the clearest and best questions usually get the best answers. Also, please check your spelling and punctuation as all questions need to be approved by the blog moderator prior to publication. Approved questions are normally published within a week (if not sooner).

Submit your model train questions here.

Model Train Help Ebook

Scenery & Layout Ideas

Share With Friends

 

Submit Your Article

Would you like to write an article and have it published?

Preference will be given to articles that help others progress in the hobby, maybe suggesting an idea for their layout, a quick tip or two... or perhaps a little bit of good advice based on your model railroading experiences.

We are all in this hobby together, so the more we can do to share ideas and help each other, the better.

Submit Your Article Here

It’s YOUR Railroad!

Your rolling stock and locomotives might actually be the center of attention on your layout, but the scenic features that surround and envelop your layout is what's likely to make your train setup stand proud of the rest. Your selection of scenery and structures will add an element of customization that will make your railroad truly unique.



Scenery, structures, and fine detailing is a fundamental aspect of any good model railroad, particularly if it is intended to replicate a true-to-life railroading scene. How realistic or authentic you make your railroad is entirely up to you... and you alone.

Some enthusiasts like to replicate every tiny detail so as to accurately depict, in every aspect, a miniaturized version of a real life scene.

Others in this hobby adopt a more "free-style" approach and choose to mix and match accessories and features they personally prefer. Even though the purist will possibly be unimpressed with unrealistic or out of context elements, it is YOUR railroad layout so you can make it anything you personally want!

Model Railroading Blog Archive