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@WaynePa posted:

I have a copy of an extensive article on surge protection written by Frank Quall’s a member of the DC Highrailers.  In it it he describes testing a number of products that were sold to provide surge protection that did not meet his stringent criteria for protection.

The article also has instructions on how to make a module that would let you know when a spike occurred.

As soon as I get back from vacation I’ll scan it in and e-mail it to any one who is interested.  I’ll also try to scan it in to this forum.

Have you scanned and posted it? 

If not, please email me a copy of the article.  Thanks!

The search engine is a great tool.  Stan's Track Spike Detector.

Thanks for the link, Dan.  I ordered the boards from Osh Park, and the Zener diodes from China since I'm in no rush. 

Just got back from vacation.  I’m going to e-mail everyone who requested the information.  It is in the form of a link to a newsletter published by DC HiRailers.  Not sure if they are still around.

I tried to just copy the surge article and e-mail it to me but the entire publication was sent.

There are a number of articles pertaining to a lot of other information.  Which some of you might be interested in.

So, just scan down and you will come across the article Simple HIRail Surge Suppression Circuitry written by Otto Schade with a forward by Frank Qualls.

If anyone can figure out how to copy just the surge article and post it on the OGR forum that would be great.

WaynePa,

Is this the document (if so it's already been posted on the forum at some time in the past)?:

  The High-Railers Buzz, Simple Hi-Rail Surge Suppression Circuitry

See Page 2.

Edit: Here's the link to its original posting:

   You may find the attached surge suppressor article interesting | penn station



Mike

Last edited by Mellow Hudson Mike
@WaynePa posted:

Yes,  but any time you can get information wether you agree with it or not you can always learn something.  To deny that is very closed minded.

I never said anything different, I merely am pointing out that this isn't something coming down the mountain on stone tablets.  I seriously doubt most of the folks here would rate me as close minded.

@bigkid posted:

Actually, raises a great question....why don't on modern transformers they build voltage spike suppression into the outputs, knowing that a short can cause a surge that will fail the electronics?

A better question is, why don't they put a TVS in every engine and/or tender, because that's really where they'd be most effective!  The answer is... ten cents, roughly the volume cost of a suitable TVS device.

I never said anything different, I merely am pointing out that this isn't something coming down the mountain on stone tablets.  I seriously doubt most of the folks here would rate me as close minded.

A better question is, why don't they put a TVS in every engine and/or tender, because that's really where they'd be most effective!  The answer is... ten cents, roughly the volume cost of a suitable TVS device.

Pencil pushers, may they all die of lead poisoning.......

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